Ontology for Quantity Kinds and Units: units and quantities definitions Quantities and Units Ontology derived from UNECE / CEFACT Rec. 20, Gellish, POSC Classes and Brown's SI Library of Unit-Based Computation 2009-08-26 2010-09-28 http://purl.oclc.org/NET/ssnx/qu/qu-rec20 Working group of the SysML 1.2 Revision Task Force (RTF) W3C Semantic Sensor Network Incubator Group This ontology is partially based on the QUDV conceptual model for Quantities, Units, Dimensions, Values (QUDV) to define systems of units and quantities for use in system models proposed by a working group of the SysML 1.2 Revision Task Force (RTF), working in close coordination with the OMG MARTE specification group. The QUDV model is described in OMG SysMLTM, Version 1.2 Appendix C.4 Model Library for Quantity Kinds and Units http://ontolog.cim3.net/file/resource/reference/UoM_Ontology_Standard/available-UoM-references/QUDV-Annex-C4-C5--OMG-SysML-v1-2_Oct-2009.pdf Note: the SYSML-QUDV definitions are flagged with a rdfs:seeAlso annotation equal to with http://www.omgsysml.org/qudv. Additional work on this ontology has been done to complete the Agriculture Meteorology example of the ontology developed by the W3C Semantic Sensor Networks incubator group (SSN-XG). For more information on the group's activities see: http://www.w3.org/2005/Incubator/ssn/ . Please report any errors to the Semantic Sensor Network Incubator Activity via the public W3C list public-xg-ssn@w3.org or alternatively, to the QUDV mailing list: http://www.omg.org/publicarchives/qudv/ Copyright 2010 W3C. SSN 1/m2.s SSN3 number per square metre second SSN 0.277777778 1/cm2.h SSN4 number per square centimetre hour SSN SSN flux density SSN hail intensity SSN SSN 1/m2 SSN5 number per square metre SSN 1e4 1/cm2 SSN6 per square centimetre SSN SSN reciprocal area SSN SSN hail amount SSN SSN mol/m2.s SSN1 mole per square metre per second SSN 1e-6 umol/m2.s SSN2 micromole per square metre per second SSN SSN photon flux density SSN rad C81 radian UNECE/CEFACT Rec20 1e-3 mrad C25 milliradian UNECE/CEFACT Rec20 1e-6 urad B97 microradian UNECE/CEFACT Rec20 1.745329e-2 0.0 deg DD degree [unit of angle] UNECE/CEFACT Rec20 2.908882e-4 0.0 mina D61 minute [unit of angle] UNECE/CEFACT Rec20 4.848137e-6 0.0 seca D62 second [unit of angle] UNECE/CEFACT Rec20 1.570796e-2 0.0 gon A91 gon UNECE/CEFACT Rec20 angle angle is a property difference that is the difference between the direction of a vector and the direction of another vector. It can be calculated as the ratio of the length of the arc of the circle included between two half-lines that terminate at the same point. ISO 31-1:1992(E) sr D27 steradian UNECE/CEFACT Rec20 solid angle solid angle is a property difference that is a portion of the whole of space about a given point, bounded by a conical surface with its vertex at that point and measured by the area cut by the bounding surface from the surface of a sphere of unit radius centered at that point. GELLISH rad/s 2A radian per second UNECE/CEFACT Rec20 1.745329e-2 0.0 deg/s E96 degree per second UNECE/CEFACT Rec20 rotational speed rotational speed is a property that is the rate of rotation of a material around an axis. GELLISH critical speed critical speed is a rotational speed that occurs when the frequency of a periodic forcing phenomenon applied to a rotor-bearing support system corresponds to a natural frequency at that system which could cause resonance. GELLISH rated rotational speed rated rotational speed is a rotational speed for which the equipment is designed to operate under specified, rated conditions. GELLISH trip speed trip speed is a rotational speed at which an item stops operating or is intended to stop operating. Typically caused by protection control. GELLISH maximum rotational speed maximum rotational speed is a rotational speed that is maximum possible or allowed or obtained. GELLISH full load speed full load speed is a rotational speed that occurs when fully loaded. GELLISH slip slip is a rotational speed that is the difference between the synchronous speed and the actual speed of a rotor relative to the synchronous speed. GELLISH synchronous speed synchronous speed is a rotational speed that results from the frequency of the system to which the machine is connected and either the number of poles or the number of projections in the machine. GELLISH critical build-up speed critical build-up speed is a rotational speed that is the lowest speed at which the machine voltage builds up under specified conditions. GELLISH critical torsional speed critical torsional speed is a rotational speed at which the amplitudes of the vibrations of a machine rotor due to shaft torsional vibration reach their maximum values. GELLISH critical whirling speed critical whirling speed is a rotational speed at which the amplitudes of the vibrations of a machine rotor due to shaft whirling vibration reach their maximum values. GELLISH design rotational speed design rotational speed is a rotational speed for which an equipment is designed to operate under specified, design conditions. GELLISH normal rotational speed normal rotational speed is a rotational speed that occurs or is supposed to occur during normal operating conditions. GELLISH rotational speed at maximum torque rotational speed at maximum torque is a rotational speed that occurs when the delivered torque is maximal. GELLISH minimum rotational speed minimum rotational speed is a rotational speed that is minimally occurring or allowed or possible to occur. GELLISH breakaway speed breakaway speed is a rotational speed where a significant increase in acceleration occurs. Typically where the rotational speed of a rotor of a turbine really takes off. GELLISH rotational speed at maximum output power rotational speed at maximum output power is a rotational speed that occurs or is expected or intended to occur at the maximum output power. GELLISH rotational speed at normal output power rotational speed at normal output power is a rotational speed that occurs or is expected or intended to occur at the normal output power. GELLISH rotational speed decay rotational speed decay is a rotational speed that is a decrease from a sound or prosperous rotational speed. GELLISH prepressurization rotational speed prepressurization rotational speed is a rotational speed to start a turbine created by prepressurization. A compressed air starter is used to spin the turbine up to a set speed. GELLISH cut out speed cut out speed is a rotational speed that is the highest speed at which a motor stops producing power. GELLISH overspeed overspeed is a rotational speed in access of sound or prosperous rotational speed. GELLISH m MTR metre UNECE/CEFACT Rec20 1e-1 dm DMT decimetre UNECE/CEFACT Rec20 1e-2 cm CMT centimetre UNECE/CEFACT Rec20 1e-6 um 4H micrometre (micron) UNECE/CEFACT Rec20 1e-3 mm MMT millimetre UNECE/CEFACT Rec20 1e2 hm HMT hectometre UNECE/CEFACT Rec20 1e3 km KTM kilometre UNECE/CEFACT Rec20 1e-9 nm C45 nanometre UNECE/CEFACT Rec20 1e-12 pm C52 picometre UNECE/CEFACT Rec20 1e-15 fm A71 femtometre UNECE/CEFACT Rec20 10 0.0 dam A45 decametre UNECE/CEFACT Rec20 1852 0.0 nmile NMI nautical mile UNECE/CEFACT Rec20 1e-10 0.0 angstrom A11 angstrom UNECE/CEFACT Rec20 1.49597870e11 0.0 ua A12 astronomical unit UNECE/CEFACT Rec20 3.085678e16 0.0 pc C63 parsec UNECE/CEFACT Rec20 0.333333333e-3 0.0 Fg H79 French gauge UNECE/CEFACT Rec20 1.8288 0.0 fth AK fathom UNECE/CEFACT Rec20 20.1168 0.0 chUK X1 Gunter's chain UNECE/CEFACT Rec20 25.4e-3 0.0 in INH inch UNECE/CEFACT Rec20 25.4e-9 0.0 uin M7 micro-inch UNECE/CEFACT Rec20 0.3048 0.0 ft FOT foot UNECE/CEFACT Rec20 0.9144 0.0 yd YRD yard UNECE/CEFACT Rec20 1609.344 0.0 mile SMI mile (statute mile) UNECE/CEFACT Rec20 25.4e-6 0.0 mil 77 milli-inch UNECE/CEFACT Rec20 9.46073e15 0.0 ly B57 light year UNECE/CEFACT Rec20 5.029210 0.0 rdUS F49 rod [unit of distance] UNECE/CEFACT Rec20 length length is a distance measured in the direction of the longest side of an item or in the direction of its main axis GELLISH width width is a distance of an item defined orthogonal to its length and height. GELLISH height height is a distance between the bottom and the top of something. GELLISH thickness thickness is a distance that is the length from surface to surface of the normal fibber at a point of a shell, plate or wall. ISO 10303-104:2000 - 6.3.22 and 5.13.8 radius radius is a distance between a center point an a point on a circle or circle segment around that center point GELLISH radius of curvature radius of curvature is a radius ISO 31 diameter diameter is a distance between two opposite points on an idealized cylindrical surface. It may be an average over the axis of the surface and around the cross section or a location dependent variable. GELLISH distance distance is a vector property that is a measure of remoteness between two points, or minimum remoteness between lines or surfaces. ISO 31-1:1992(E) wave length wave length is a length of one cycle of a wave ISO 31-5 / IEC 61360 object distance object distance is a distance between an object and a lens ISO 31 image distance image distance is a distance ISO 31 focal distance focal distance is a distance ISO 31 sound particle displacement sound particle displacement is a length ISO 31-7 / IEC 61360 mean free path mean free path is a length ISO 31 half-thickness half-thickness is a thickness ISO 31 diffusion length diffusion length is a length ISO 31 migration length migration length is a length ISO 31 m/K F52 metre per kelvin UNECE/CEFACT Rec20 1e-6 um/K F50 micrometre per kelvin UNECE/CEFACT Rec20 1e-2 cm/K F51 centimetre per kelvin UNECE/CEFACT Rec20 0.54864 0.0 ft/degF K13 foot per degree Fahrenheit UNECE/CEFACT Rec20 4.572e-2 0.0 in/degF K45 inch per degree Fahrenheit UNECE/CEFACT Rec20 1.64592 0.0 yd/degF L98 yard per degree Fahrenheit UNECE/CEFACT Rec20 1e-3 mm/K F53 millimetre per kelvin UNECE/CEFACT Rec20 length per temperature Hz.m H34 hertz metre UNECE/CEFACT Rec20 1e9 0.0 MHz.km H39 megahertz kilometre UNECE/CEFACT Rec20 1e3 kHz.m M17 kilohertz metre UNECE/CEFACT Rec20 1e9 GHz.m M18 gigahertz metre UNECE/CEFACT Rec20 1e6 MHz.m M27 megahertz metre UNECE/CEFACT Rec20 thickness frequency product m2 MTK square metre UNECE/CEFACT Rec20 1e6 0.0 km2 KMK square kilometre UNECE/CEFACT Rec20 1e2 0.0 a ARE are UNECE/CEFACT Rec20 1e-12 0.0 um2 H30 square micrometre UNECE/CEFACT Rec20 1e3 0.0 daa DAA decare UNECE/CEFACT Rec20 1e4 0.0 ha HAR hectare UNECE/CEFACT Rec20 1e-4 0.0 cm2 CMK square centimetre UNECE/CEFACT Rec20 1e-2 0.0 dm2 DMK square decimetre UNECE/CEFACT Rec20 1e2 0.0 dam2 H16 square decametre UNECE/CEFACT Rec20 1e4 0.0 hm2 H18 square hectometre UNECE/CEFACT Rec20 1e-6 0.0 mm2 MMK square millimetre UNECE/CEFACT Rec20 6.4516e-4 0.0 in2 INK square inch UNECE/CEFACT Rec20 9.290304e-2 0.0 ft2 FTK square foot UNECE/CEFACT Rec20 8.361274e-1 0.0 yd2 YDK square yard UNECE/CEFACT Rec20 4046.873 0.0 acre ACR acre UNECE/CEFACT Rec20 1e-28 0.0 b A14 barn UNECE/CEFACT Rec20 area area is a property that is the size of a 2D surface. It can be calculated as a double integral (dx.dy), where x and y are cartesian coordinates. ISO 31-1:1992(E) diffusion area diffusion area is an area ISO 31 migration area migration area is an area ISO 31 m3 MTQ cubic metre UNECE/CEFACT Rec20 1e3 0.0 Ml MAL mega litre UNECE/CEFACT Rec20 1e-3 0.0 l LTR litre UNECE/CEFACT Rec20 1e-9 0.0 mm3 MMQ cubic millimetre UNECE/CEFACT Rec20 1e-6 0.0 cm3 CMQ cubic centimetre UNECE/CEFACT Rec20 1e-3 0.0 dm3 DMQ cubic decimetre UNECE/CEFACT Rec20 1e-6 0.0 ml MLT millilitre UNECE/CEFACT Rec20 1e-1 0.0 hl HLT hectolitre UNECE/CEFACT Rec20 1e-5 0.0 cl CLT centilitre UNECE/CEFACT Rec20 1e3 0.0 dam3 DMA cubic decametre UNECE/CEFACT Rec20 1e6 0.0 hm3 H19 cubic hectometre UNECE/CEFACT Rec20 1e9 0.0 km3 H20 cubic kilometre UNECE/CEFACT Rec20 1e-4 0.0 dl DLT decilitre UNECE/CEFACT Rec20 1e-9 0.0 ul 4G microlitre UNECE/CEFACT Rec20 1 0.0 kl K6 kilolitre UNECE/CEFACT Rec20 1e-2 0.0 dal A44 decalitre UNECE/CEFACT Rec20 4.672 0.0 std 5I standard cubic foot UNECE/CEFACT Rec20 16.387064e-6 0.0 in3 INQ cubic inch UNECE/CEFACT Rec20 2.831685e-2 0.0 ft3 FTQ cubic foot UNECE/CEFACT Rec20 0.764555 0.0 yd3 YDQ cubic yard UNECE/CEFACT Rec20 4.546092e-3 0.0 galUK GLI gallon (UK) UNECE/CEFACT Rec20 3.785412e-3 0.0 galUS GLL gallon (US) UNECE/CEFACT Rec20 4.73176e-4 0.0 ptUS PT pint (US) UNECE/CEFACT Rec20 5.68261e-4 0.0 ptUK PTI pint (UK) UNECE/CEFACT Rec20 1.1365225e-3 0.0 qtUK QTI quart (UK) UNECE/CEFACT Rec20 4.731765e-4 0.0 liqptUS PTL liquid pint (US) UNECE/CEFACT Rec20 9.463529e-4 0.0 liqqtUS QTL liquid quart (US) UNECE/CEFACT Rec20 5.506105e-4 0.0 dryptUS PTD dry pint (US) UNECE/CEFACT Rec20 2.841306e-5 0.0 flozUK OZI fluid ounce (UK) UNECE/CEFACT Rec20 0.9463529e-3 0.0 qtUS QT quart (US) UNECE/CEFACT Rec20 0.15911315 0.0 bblUKliq J57 barrel (UK petroleum) UNECE/CEFACT Rec20 9.092181e-3 0.0 pkUK L43 peck (UK) UNECE/CEFACT Rec20 5.506105e-4 0.0 ptUSdry L61 pint (US dry) UNECE/CEFACT Rec20 1.101221e-3 0.0 qtUSdry L62 quart (US dry) UNECE/CEFACT Rec20 1.1893 0.0 Britishshippington L84 ton (UK shipping) UNECE/CEFACT Rec20 1.1326 0.0 USshippington L86 ton (US shipping) UNECE/CEFACT Rec20 2.957353e-5 0.0 flozUS OZA fluid ounce (US) UNECE/CEFACT Rec20 3.636872e-2 0.0 bushelUK BUI bushel (UK) UNECE/CEFACT Rec20 3.523907e-2 0.0 buUS BUA bushel (US) UNECE/CEFACT Rec20 158.9873e-3 0.0 barrelUS BLL barrel (US) UNECE/CEFACT Rec20 1.15627e-1 0.0 bblUS BLD dry barrel (US) UNECE/CEFACT Rec20 4.404884e-3 0.0 drygalUS GLD dry gallon (US) UNECE/CEFACT Rec20 1.101221e-3 0.0 dryqtUS QTD dry quart (US) UNECE/CEFACT Rec20 1 0.0 st G26 stere UNECE/CEFACT Rec20 2.365882e-4 0.0 cupUS G21 cup [unit of volume] UNECE/CEFACT Rec20 1.478676e-5 0.0 tablespoonUS G24 tablespoon (US) UNECE/CEFACT Rec20 4.928922e-6 0.0 teaspoonUS G25 teaspoon (US) UNECE/CEFACT Rec20 8.809768e-3 0.0 pkUS G23 peck UNECE/CEFACT Rec20 volume volume is a property that is an amount of space. A volume V is correlated with the coordinates x, y and z as V = triple integral (dx.dy.dz) where x, y and z are cartesian coordinates of the space which occupies the volume. ISO 31-1:1992(E) section modulus section modulus is a property of a plane area (section) about an axis in its plane, which is the second moment of area divided by the distance from the axis to the most remote point of the area. ISO 31-3:1992 (E) s SEC second [unit of time] UNECE/CEFACT Rec20 60 0.0 min MIN minute [unit of time] UNECE/CEFACT Rec20 3600 0.0 h HUR hour UNECE/CEFACT Rec20 86400 0.0 d DAY day UNECE/CEFACT Rec20 1e3 ks B52 kilosecond UNECE/CEFACT Rec20 1e-3 ms C26 millisecond UNECE/CEFACT Rec20 1e-12 ps H70 picosecond UNECE/CEFACT Rec20 1e-6 us B98 microsecond UNECE/CEFACT Rec20 1e-9 ns C47 nanosecond UNECE/CEFACT Rec20 6.048e5 0.0 wk WEE week UNECE/CEFACT Rec20 2.629800e6 0.0 mo MON month UNECE/CEFACT Rec20 3.15576e7 0.0 y ANN year UNECE/CEFACT Rec20 3.1556925e7 0.0 ytropical D42 tropical year UNECE/CEFACT Rec20 3.1536e7 0.0 y365days L95 common year UNECE/CEFACT Rec20 3.155815e7 0.0 ysidereal L96 sidereal year UNECE/CEFACT Rec20 1e-3 0.0 H/kohm H03 henry per kiloohm UNECE/CEFACT Rec20 1 0.0 H/ohm H04 henry per ohm UNECE/CEFACT Rec20 1e-9 0.0 uH/kohm G98 microhenry per kiloohm UNECE/CEFACT Rec20 1e-6 0.0 uH/ohm G99 microhenry per ohm UNECE/CEFACT Rec20 1e-6 0.0 mH/kohm H05 millihenry per kiloohm UNECE/CEFACT Rec20 1e-3 0.0 mH/ohm H06 millihenry per ohm UNECE/CEFACT Rec20 duration duration is a property difference that is an elapsed time irrespect of when occurring on the time scale or the time difference between a moment in time and a reference moment in time. ISO 31-1:1992(E) periodic time periodic time is a duration of a periodic phenomenon. ISO 31-5 / IEC 61360 time constant time constant is a duration that is the time for value to decrease to 1/e, I.e. 0.368 of its initial value following a sudden change in operating conditions GELLISH relaxation time relaxation time is a duration ISO 31-7 / IEC 61360 reverberation time reverberation time is a duration ISO 31-7 / IEC 61360 mean life mean life is a duration GELLISH rad/s2 2B radian per second squared UNECE/CEFACT Rec20 angular acceleration angular acceleration is a property that is an increase of rotational speed. GELLISH m/s MTS metre per second UNECE/CEFACT Rec20 0.277778 0.0 km/h KMH kilometre per hour UNECE/CEFACT Rec20 1e-3 mm/s C16 millimetre per second UNECE/CEFACT Rec20 1e-2 cm/s 2M centimetre per second UNECE/CEFACT Rec20 0.277777778e-6 0.0 cm/h H49 centimetre per hour UNECE/CEFACT Rec20 3.15576e4 0.0 mm/y H66 millimetre per year UNECE/CEFACT Rec20 0.277777778e-7 0.0 mm/h H67 millimetre per hour UNECE/CEFACT Rec20 1.666666667e-5 0.0 mm/min H81 millimetre per minute UNECE/CEFACT Rec20 0.016666 0.0 m/min 2X metre per minute UNECE/CEFACT Rec20 0.514444 0.0 kn KNT knot UNECE/CEFACT Rec20 5.08e-3 0.0 ft/min FR foot per minute UNECE/CEFACT Rec20 0.0254 0.0 in/s IU inch per second UNECE/CEFACT Rec20 0.3048 0.0 ft/s FS foot per second UNECE/CEFACT Rec20 0.44704 0.0 mile/h HM mile per hour UNECE/CEFACT Rec20 8.466667e-5 0.0 ft/h K14 foot per hour UNECE/CEFACT Rec20 1e-2 0.0 ml/cm2.s 35 millilitre per square centimetre second UNECE/CEFACT Rec20 velocity velocity is a vector property that is time rate of motion of matter at a point in a fixed direction. Typically also used for the relative velocity with reference to a point on the earth (v = ds/dt where s is the displacement and t is the time). ISO 31-1:1992(E) velocity or speed speed speed is a rate of travelling along a path. It is a magnitude of velocity irrespect of direction. GELLISH velocity or speed phase velocity phase velocity is a velocity ISO 31 velocity or speed group velocity group velocity is a velocity ISO 31 velocity or speed sound particle velocity sound particle velocity is a velocity ISO 31-7 / IEC 61360 velocity or speed velocity of sound velocity of sound is a velocity that is the speed of sound in a material GELLISH velocity or speed neutron speed neutron speed is a speed ISO 31 velocity or speed m/s2 MSK metre per second squared UNECE/CEFACT Rec20 1e-2 0.0 Gal A76 gal UNECE/CEFACT Rec20 1e-5 0.0 mGal C11 milligal UNECE/CEFACT Rec20 0.3048 0.0 ft/s2 A73 foot per second squared UNECE/CEFACT Rec20 0.0254 0.0 in/s2 IV inch per second squared UNECE/CEFACT Rec20 9.80665 0.0 gn K40 standard acceleration of free fall UNECE/CEFACT Rec20 1e6 0.0 kPa.m2/g 33 kilopascal square metre per gram UNECE/CEFACT Rec20 acceleration acceleration is a vector property that is an increase of speed of matter at a point per time in a direction. In other words: the derivative of the speed over time. Typically expressed as a = dv/dt. ISO 31-1:1992(E) acceleration due to gravity acceleration due to gravity is an acceleration at the start of the free fall of a material when subject to the attraction of the earth at the earth surface. It is an acceleration excluding the effect of any resistance, such as due to movement through air. It varies a bit over the earth surface. A standardised value has been defined of g = 9.80665 m/s2. ISO 31 sound particle acceleration sound particle acceleration is an acceleration ISO 31-7 / IEC 61360 1/m C92 reciprocal metre UNECE/CEFACT Rec20 1e10 0.0 1/angstrom C85 reciprocal angstrom UNECE/CEFACT Rec20 number per length number per length is a property that is a number of countable items per unit of length ISO 31-5 / IEC 61360 curvature curvature is a property that is the reciprocal of a radius of curvature (kappa = 1/rho). Typically at a point - see ISO 10303-104:2000 - 6.3.30. ISO 31-1:1992(E) and ISO 10303-104:2000 repetency repetency is a number per length that is the reciproque of a wave length. ISO 31-5 / IEC 61360 Hz HTZ hertz UNECE/CEFACT Rec20 1e3 kHz KHZ kilohertz UNECE/CEFACT Rec20 1e6 MHz MHZ megahertz UNECE/CEFACT Rec20 1e12 THz D29 terahertz UNECE/CEFACT Rec20 1e9 GHz A86 gigahertz UNECE/CEFACT Rec20 frequency frequency is a property that is a number of occurrences per time. Typically for a periodic phenomenon (f = 1/T where T is a period of one cycle). ISO 31-2:1992(E) Np C50 neper UNECE/CEFACT Rec20 0.1151293 0.0 dB 2N decibel UNECE/CEFACT Rec20 level of a field quantity level of a field quantity is a property ISO 31 kg KGM kilogram UNECE/CEFACT Rec20 1e-9 0.0 ug MC microgram UNECE/CEFACT Rec20 1e-2 0.0 dag DJ decagram UNECE/CEFACT Rec20 1e-4 0.0 dg DG decigram UNECE/CEFACT Rec20 1e-3 0.0 g GRM gram UNECE/CEFACT Rec20 1e-5 0.0 cg CGM centigram UNECE/CEFACT Rec20 1e3 0.0 t TNE tonne (metric ton) UNECE/CEFACT Rec20 1e2 0.0 dt DTN decitonne UNECE/CEFACT Rec20 1e-6 0.0 mg MGM milligram UNECE/CEFACT Rec20 1e-1 0.0 hg HGM hectogram UNECE/CEFACT Rec20 1e6 0.0 kt KTN kilotonne UNECE/CEFACT Rec20 1e3 0.0 Mg 2U megagram UNECE/CEFACT Rec20 0.45359237 0.0 lb LBR pound UNECE/CEFACT Rec20 64.79891e-6 0.0 gr GRN grain UNECE/CEFACT Rec20 2.834952e-2 0.0 oz ONZ ounce UNECE/CEFACT Rec20 50.80235 0.0 cwtUK CWI hundred weight (UK) UNECE/CEFACT Rec20 45.3592 0.0 cwtUS CWA hundred pound (cwt) / hundred weight (US) UNECE/CEFACT Rec20 1.016047e3 0.0 tonUK LTN ton (UK) or long ton (US) UNECE/CEFACT Rec20 6.350293 0.0 st STI stone (UK) UNECE/CEFACT Rec20 0.9071847e3 0.0 tonUS STN ton (US) or short ton (UK/US) UNECE/CEFACT Rec20 31.1034768e-3 0.0 troz APZ troy ounce or apothecary ounce UNECE/CEFACT Rec20 1.459390e1 0.0 slug F13 slug UNECE/CEFACT Rec20 mass mass is a property that is a constant that indicates the resistance of a material against acceleration. ISO 31-3:1992(E) effective mass effective mass is a mass GELLISH kg/m3 KMQ kilogram per cubic metre UNECE/CEFACT Rec20 1e3 0.0 g/cm3 23 gram per cubic centimetre UNECE/CEFACT Rec20 1e3 0.0 t/m3 D41 tonne per cubic metre UNECE/CEFACT Rec20 1e3 0.0 g/ml GJ gram per millilitre UNECE/CEFACT Rec20 1e3 0.0 kg/l B35 kilogram per litre UNECE/CEFACT Rec20 1 0.0 g/l GL gram per litre UNECE/CEFACT Rec20 1e-3 0.0 g/m3 A93 gram per cubic metre UNECE/CEFACT Rec20 1e-6 0.0 mg/m3 GP milligram per cubic metre UNECE/CEFACT Rec20 1e3 0.0 Mg/m3 B72 megagram per cubic metre UNECE/CEFACT Rec20 1e3 0.0 kg/dm3 B34 kilogram per cubic decimetre UNECE/CEFACT Rec20 1e-6 0.0 ug/l H29 microgram per litre UNECE/CEFACT Rec20 1e-3 0.0 mg/l M1 milligram per litre UNECE/CEFACT Rec20 1e-9 0.0 ug/m3 GQ microgram per cubic metre UNECE/CEFACT Rec20 1 0.0 g/dm3 F23 gram per cubic decimetre UNECE/CEFACT Rec20 1e6 0.0 kg/cm3 G31 kilogram per cubic centimetre UNECE/CEFACT Rec20 1.601846e1 0.0 lb/ft3 87 pound per cubic foot UNECE/CEFACT Rec20 1.198264e2 0.0 lb/galUS GE pound per gallon (US) UNECE/CEFACT Rec20 2.767990e4 0.0 lb/in3 LA pound per cubic inch UNECE/CEFACT Rec20 3.70798e-2 0.0 oz/yd3 G32 ounce (avoirdupois) per cubic yard UNECE/CEFACT Rec20 1.711806e-2 0.0 gr/galUS K41 grain per gallon (US) UNECE/CEFACT Rec20 99.77637 0.0 lb/galUK K71 pound (avoirdupois) per gallon (UK) UNECE/CEFACT Rec20 0.5932764 0.0 lb/yd3 K84 pound per cubic yard UNECE/CEFACT Rec20 6.236023 0.0 oz/galUK L37 ounce (avoirdupois) per gallon (UK) UNECE/CEFACT Rec20 7.489152 0.0 oz/galUS L38 ounce (avoirdupois) per gallon (US) UNECE/CEFACT Rec20 1.729994e3 0.0 oz/in3 L39 ounce (avoirdupois) per cubic inch UNECE/CEFACT Rec20 5.153788e2 0.0 slug/ft3 L65 slug per cubic foot UNECE/CEFACT Rec20 1.328939e3 0.0 ton.l/yd3UK L92 ton (UK long) per cubic yard UNECE/CEFACT Rec20 1.186553e3 0.0 ton.s/yd3US L93 ton (US short) per cubic yard UNECE/CEFACT Rec20 density density is a property that is a concentration of matter, measured as a mass per unit volume. ISO 31-3:1992(E) kg/mol D74 kilogram per mole UNECE/CEFACT Rec20 1e-3 0.0 kg/kmol F24 kilogram per kilomol UNECE/CEFACT Rec20 1e-3 0.0 g/mol A94 gram per mole UNECE/CEFACT Rec20 molecular weight molecular weight is a property that is a quotient of the mass of a substance and its quantity of moles. GELLISH kg.m2 B32 kilogram metre squared UNECE/CEFACT Rec20 1e-4 0.0 kg.cm2 F18 kilogram square centimetre UNECE/CEFACT Rec20 1e-6 0.0 kg.mm2 F19 kilogram square millimetre UNECE/CEFACT Rec20 2.926397e-4 0.0 lb.in2 F20 pound inch squared UNECE/CEFACT Rec20 4.214011e-2 0.0 lb.ft2 K65 pound (avoirdupois) square foot UNECE/CEFACT Rec20 moment of inertia moment of inertia is a second order tensor property that is the inertial resistance against acceleration. It is determined for a body about an axis by taking the sum (integral) of the product of its elements of mass and the square of their distances from the axis (I = Integral (r*r*)dm. ISO 31-3:1992(E) 1 C62 one UNECE/CEFACT Rec20 relative density relative density is a relative property that is a ratio between a density and a reference density. Typically relative to the density of water at 0 degree Celcius and 1 bar. relative mass density relative density is a relative property that is a ratio between a density and a reference density. Typically relative to the density of water at 0 degree Celcius and 1 bar. linear strain linear strain is a strain that is a relative elongation resulting from a stress. It is measured by the ratio of change to the total value of the dimension in which the change occurred relative elongation linear strain is a strain that is a relative elongation resulting from a stress. It is measured by the ratio of change to the total value of the dimension in which the change occurred shear strain shear strain is a strain volume or bulk strain poisson ratio poisson number friction factor friction factor is a factor that is a measure for a relative roughness of a surface, a flow pattern and a Reynolds number coefficient of friction ratio of the specific heat capacities ratio of the specific heat capacities is a ratio ratio of the massic heat capacity isentropic exponent isentropic exponent is an exponent relative permittivity relative permittivity is a ratio of the capacitance of a capacitor, in which the space between and around the electrodes is entirely and exclusively filled with the insulating material in question, to the capacitance of the same configuration of electrodes in vacuum. electric susceptibility electric susceptibility is a property that can be calculated as chi = epsilon - 1 coupling coefficient leakage coefficient number of turns in a winding number of phases number of pairs of poles relative permeability relative permeability is a relative property magnetic susceptibility magnetic susceptibility is a factor emissivity emissivity is a ratio the relative power of a surface to emit heat by radiation relative to the heat emitted by a blackbody at the same temperature. spectral emissivity spectral emissivity is an emissivity emissivity at a specified wavelength directional spectral emissivity directional spectral emissivity is an emissivity luminous efficiency spectral luminous efficiency luminous efficiency at a specified wavelength CIE colorimetric functions CIE colorimetric functions is a factor coordinates trichromatic spectral absorption factor spectral absorption factor is a factor spectral absorptance spectral reflectionfactor,spectral reflectance spectral transmission factor spectral transmission factor is a transmission factor spectral transmittance spectral radiance factor spectral radiance factor is a factor optical density optical density is a ratio refractive index refractive index is an index dissipation factor dissipation factor is a factor dissipance reflection factor reflection factor is a factor reflectance reflectance of incident radiant energy that is reflected from a surface. transmission factor transmission factor is a factor transmittance transmittance of incident radiant energy that passes through a substance. absorption factor absorption factor is a factor absorbance absorbance of radiant energy absorbed by a body to the corresponding absorption of a blackbody at the same temperature. Absorbance equals emittance on bodies whose temperature is not changing. (A = 1 - R - T, where R is the reflectance and T is the transmittance.). relative atomic mass relative molecular mass number of molecules or other elementary entities number number is a quantity that is a quantity of discrete, countable things. GELLISH d15/15 d15/15 is a specific gravity where the material is at 15 degree C relative to water at 15 degree C GELLISH d15/4 d15/4 is a specific gravity where the material is at 15 degree C relative to water at 4 degree C GELLISH d60/60 d60/60 is a specific gravity where the material is at 60 degree F relative to water at 60 degree F GELLISH API gravity API gravity is a specific gravity that is defined in ISO 1998 def. 2-003 ISO 1998 def. 2-037 specific gravity specific gravity is a ratio of the mass of a material relative to the mass of an equal volume of water at 4 degree C or at another specified temperature and at atmospheric pressure. GELLISH seating capacity seating capacity is a number of people that can sit in a specified area or place. GELLISH operating specific gravity operating specific gravity is a specific gravity at operating conditions. GELLISH number required number required is a number of things that are required. This can be a number of things in a collection of things or a number of things that are identical to the specified single thing or that satisfy the same specifications as the specified single thing. GELLISH standard equilibrium constant standard equilibrium constant is an equilibrium constant mole fraction of B mole ratio of solute B degree of dissociation standard absolute activity of B (in a gaseous mixture) activity coefficient of B (in a liquid as a solid mixture) standard absolute activity of B (in a liquid or a solid mixture) activity coefficient of solute B (especially in a dilute solution) standard absolute activity of solute B (especially in a dilute solution) activity of solvent A relative activity of solvent A (especially in a dilute solution) osmotic coefficient of the solvent A (especially in a dilute solution) standard absolute activity of solvent A (especially in a dilute solution) stoichiometric number of B microcanonical partition function microcanonical partition function is a property canonical partition function canonical partition function is a mathematical function grand-canonical partition function grand-canonical partition function is a canonical partition function grand partition function molecular partition function molecular partition function is a property partition function of a molecule thermal diffusion ratio thermal diffusion factor thermal diffusion factor is a property proton number charge number of ion transport number of ion B current fraction of ion B atomic number neutron number nucleon number mass number (rest) mass of electron (rest) mass of proton (rest) mass of neutron relative mass excess relative mass excess is a property relative mass defect relative mass defect is a property packing fraction binding fraction g-factor of atom or electron g-factor of atom or electron is a property g-factor of nucleus orbital angular momentum quantum number orbital angular momentum quantum number is a property spin angular momentum quantum number spin angular momentum quantum number is a property total angular momentum quantum number total angular momentum quantum number is a property nuclear spin quantum number nuclear spin quantum number is a property hyperfine structure quantum number hyperfine structure quantum number is a property principle quantum number magnetic quantum number magnetic quantum number is a property fine structure constant internal conversion factor neutron yield per fission neutron yield per fission is a yield neutron yield per absorption neutron yield per absorption is a yield fast fission factor fast fission factor is a factor thermal utilization factor thermal utilization factor is a factor non leakage probability multiplication factor multiplication factor is a factor infinite medium multiplication factor infinite medium multiplication factor is a multiplication factor effective multiplication factor effective multiplication factor is a multiplication factor resonance escape probability resonance escape probability is a probability that a neutron slowing down will traverse all or some specified portion of the range of resonance energies without being absorbed in an infinity medium. lethargy lethargy is a factor average logarithmic energy decrement average logarithmic energy decrement is a factor reactivity reactivity is an ability to form a chemical bond or the speed with which a chemical reaction takes place. Reynolds number Reynolds number is a dimensionless property that is the dimensionless ratio between the inertia force and the dynamic force used to describe dynamic similarity. Euler number Euler number is a property Froude number Froude number is a dimensionless property that is a dimensionless parameter for agitation and expressed in impeller diameter. times agitator speed exp.2 , divided by the magnitude of gravity factor. Grashof number Grashof number is a property Weber number Weber number is a dimensionless property that is the dimensional analysis of bubble break-up in gas-liquid systems. Mach number Mach number is a dimensionless property Knudsen number Knudsen number is a property Strouhal number Strouhal number is a property Fourier number Fourier number is a property Peclet number Peclet number is a dimensionless property that is a heat transfer number and the product of the prandl number and the reynolds number. Rayleigh number Rayleigh number is a property Nusselt number Nusselt number is a dimensionless property that is a measure for mass transfer within an agitation process. Stanton number Stanton number is a property Fourier number for mass transfer Fourier number for mass transfer is a Fourier number Peclet number for mass transfer Grashof number for mass transfer Grashof number for mass transfer is a Grashof number Nusselt number for mass transfer Stanton number for mass transfer Prandtl number Schmidt number Schmidt number is a dimensionless property that represents the ratio of momentum to molecular diffusivity. Lewis number Lewis number is a property magnetic Reynolds number Alfven number Alfven number is a property Hartmann number Hartmann number is a property Cowling number Cowling number is a property mobility ratio order of reflexion order of reflexion is a property short-range order parameter short-range order parameter is a property long-range order parameter long-range order parameter is a property Debye-Walle factor Grüneisen parameter Grüneisen parameter is a property Madelung constant Landau-Ginzburg number Landau-Ginzburg number is a property m3/kg A39 cubic metre per kilogram UNECE/CEFACT Rec20 1e-1 0.0 dl/g 22 decilitre per gram UNECE/CEFACT Rec20 1e-3 0.0 l/kg H83 litre per kilogram UNECE/CEFACT Rec20 1e-6 0.0 ml/kg KX millilitre per kilogram UNECE/CEFACT Rec20 specific volume specific volume is a property that is a volume per unit of mass of substance ( v=1/rho). ISO 31-3:1992(E) m2/kg D21 square metre per kilogram UNECE/CEFACT Rec20 1e-1 0.0 cm2/g H15 square centimetre per gram UNECE/CEFACT Rec20 mass attenuation coefficient mass attenuation coefficient is a property ISO 31 mass energy transfer coefficient mass energy transfer coefficient is a property ISO 31 kg/m KL kilogram per metre UNECE/CEFACT Rec20 1e-3 0.0 g/m GF gram per metre (gram per 100 centimetres) UNECE/CEFACT Rec20 1e1 0.0 g/mm H76 gram per millimetre UNECE/CEFACT Rec20 1e3 kg/mm KW kilogram per millimetre UNECE/CEFACT Rec20 1e-6 0.0 mg/m C12 milligram per metre UNECE/CEFACT Rec20 1.488164 0.0 lb/ft P2 pound per foot UNECE/CEFACT Rec20 1e-3 0.0 kg/km M31 kilogram per kilometre UNECE/CEFACT Rec20 1.785797e1 0.0 lb/in PO pound per inch of length UNECE/CEFACT Rec20 linear density linear density is a property that is a mass per unit of length ISO 31-3:1992(E) kg/m2 28 kilogram per square metre UNECE/CEFACT Rec20 1e-6 0.0 mg/m2 GO milligram per square metre UNECE/CEFACT Rec20 10 0.0 g/cm2 25 gram per square centimetre UNECE/CEFACT Rec20 1e-2 0.0 mg/cm2 H63 milligram per square centimetre UNECE/CEFACT Rec20 1e-3 0.0 g/m2 GM gram per square metre UNECE/CEFACT Rec20 1e4 0.0 kg/cm2 D5 kilogram per square centimetre UNECE/CEFACT Rec20 3.390575e-2 0.0 oz/yd2 ON ounce per square yard UNECE/CEFACT Rec20 0.3051517 0.0 oz/ft2 37 ounce per square foot UNECE/CEFACT Rec20 4.882428 0.0 lb/ft2 FP pound per square foot UNECE/CEFACT Rec20 7.030696e2 0.0 lb/in2 80 pound per square inch absolute UNECE/CEFACT Rec20 surface density surface density is a property that is a mass per unit of area ISO 31-3 / IEC 61360 kg.m/s B31 kilogram metre per second UNECE/CEFACT Rec20 momentum momentum is a property that determines the duration required to bring a body to rest when under action of a constant force or moment. It can be determined as the product of its mass and velocity. ISO 31-3 / IEC 61360 N NEW newton UNECE/CEFACT Rec20 1e6 MN B73 meganewton UNECE/CEFACT Rec20 1e3 kN B47 kilonewton UNECE/CEFACT Rec20 1e-3 mN C20 millinewton UNECE/CEFACT Rec20 1e-6 uN B92 micronewton UNECE/CEFACT Rec20 1e-5 0.0 dyn DU dyne UNECE/CEFACT Rec20 4.448222 0.0 lbf C78 pound-force UNECE/CEFACT Rec20 9.80665 0.0 kgf B37 kilogram-force UNECE/CEFACT Rec20 9.80665 0.0 kp B51 kilopond UNECE/CEFACT Rec20 0.2780139 0.0 ozf L40 ounce (avoirdupois)-force UNECE/CEFACT Rec20 8.896443e3 0.0 ton.sh L94 ton-force (US short) UNECE/CEFACT Rec20 force force is a vector property that changes the state of rest or motion in matter. ISO 31-3:1992(E) weight weight is a force that is the attraction force between the earth and a body. Typically when the body is a the surface of the earth. The weight is caused by gravity. ISO 31-3:1992(E) N.m2/kg2 C54 newton metre squared kilogram squared UNECE/CEFACT Rec20 gravitational coupling J JOU joule UNECE/CEFACT Rec20 1 0.0 N.m NU newton metre UNECE/CEFACT Rec20 1e6 MN.m B74 meganewton metre UNECE/CEFACT Rec20 1e3 kN.m B48 kilonewton metre UNECE/CEFACT Rec20 1e-3 mN.m D83 millinewton metre UNECE/CEFACT Rec20 1e-6 uN.m B93 micronewton metre UNECE/CEFACT Rec20 1e-1 dN.m DN decinewton metre UNECE/CEFACT Rec20 1e-2 cN.m J72 centinewton metre UNECE/CEFACT Rec20 9.80665 0.0 kgf.m B38 kilogram-force metre UNECE/CEFACT Rec20 1e-7 0.0 dyn.cm J94 dyne centimetre UNECE/CEFACT Rec20 7.061552e-3 0.0 ozf.in L41 ounce (avoirdupois)-force inch UNECE/CEFACT Rec20 1e3 kJ KJO kilojoule UNECE/CEFACT Rec20 1e18 EJ A68 exajoule UNECE/CEFACT Rec20 1e15 PJ C68 petajoule UNECE/CEFACT Rec20 1e12 TJ D30 terajoule UNECE/CEFACT Rec20 1e9 GJ GV gigajoule UNECE/CEFACT Rec20 1e6 MJ 3B megajoule UNECE/CEFACT Rec20 1e-3 mJ C15 millijoule UNECE/CEFACT Rec20 1e-15 fJ A70 femtojoule UNECE/CEFACT Rec20 1e-18 aJ A13 attojoule UNECE/CEFACT Rec20 3.6e3 0.0 W.h WHR watt hour UNECE/CEFACT Rec20 3.6e9 0.0 MW.h MWH megawatt hour (1000 kW.h) UNECE/CEFACT Rec20 3.6e6 0.0 kW.h KWH kilowatt hour UNECE/CEFACT Rec20 3.6e12 0.0 GW.h GWH gigawatt hour UNECE/CEFACT Rec20 3.6e15 0.0 TW.h D32 terawatt hour UNECE/CEFACT Rec20 1.60217733e-19 0.0 eV A53 electronvolt UNECE/CEFACT Rec20 1e-7 0.0 erg A57 erg UNECE/CEFACT Rec20 1.355818 0.0 ft.lbf 85 foot pound-force UNECE/CEFACT Rec20 1 0.0 W.s J55 watt second UNECE/CEFACT Rec20 1.055056e3 0.0 BtuIT BTU British thermal unit (international table) UNECE/CEFACT Rec20 4.18846 0.0 cal A1 15 °C calorie UNECE/CEFACT Rec20 4.1868 0.0 calIT D70 International Table (IT) calorie UNECE/CEFACT Rec20 1.05587e3 0.0 Btu J39 British thermal unit (mean) UNECE/CEFACT Rec20 4.19002e3 0.0 kcal K51 kilocalorie (mean) UNECE/CEFACT Rec20 4.1868e3 0.0 kcalIT E14 kilocalorie (international table) UNECE/CEFACT Rec20 4.184e3 0.0 kcalth K53 kilocalorie (thermochemical) UNECE/CEFACT Rec20 4.184 0.0 calth D35 calorie (thermochemical) UNECE/CEFACT Rec20 work work is an energy in transit between a system and its surroundings resulting from the displacement of an external force acting on the physical object ISO 31 energy energy is a property that is an equivalent of work done when the point of application of a force is displaced a distance in the direction of the force. ISO 31-3:1992(E) enthalpy-wt enthalpy-wt is an enthalpy that is an enthalpy in energy per unit of mass. GELLISH breakaway torque breakaway torque is a torque required to change rotating parts from zero speed to initial rotation. In case of an electric motor it is the smallest torque developed by the electric motor when at rest, and when it is supplied at the rated voltage and frequency. GELLISH stalling torque stalling torque is a torque is the maximum torque under which a motor will operate at a given voltage and frequency. If a load greater than this torque is applied to the motor, it will stall. GELLISH starting torque starting torque is a torque that is the electromagnetic torque exerted by a motor during the starting period. GELLISH torque torque is a property that is a twisting force being a product of a force and a distance. The force is applied to something that has a role as a lever and the distance is the distance between the point on the lever where the force applies and the fulcrum of the lever. GELLISH activation energy activation energy is an energy GELLISH enthalpy of combustion enthalpy of combustion is an enthalpy that is the enthalpy that is released when combustion takes place GELLISH excitation energy excitation energy is an energy GELLISH heat content heat content is a heat that is the quantity of heat contained in a material GELLISH heat of combustion heat of combustion is a heat GELLISH heat of solution heat of solution is a heat GELLISH heat of vaporisation heat of vaporisation is a heat that is required to transform a liquid to a vapor. It will be freed when the vapor is condensed GELLISH kinetic energy kinetic energy is a mechanical energy in the form of motion GELLISH melting enthalpy melting enthalpy is an enthalpy that is required to melt a substance GELLISH potential energy potential energy is a mechanical energy due to the location of material relative to a reference location of another material, due to the attraction between the materials. Typically because of elevated altitude on earth (gravitational energy) or of compression or extension of an elastic material GELLISH residual heat residual heat is a heat GELLISH rotation energy rotation energy is a kinetic energy where the motion is rotational. Typically calculated by U = I.omega2.R GELLISH thermal energy thermal energy is an energy that exists in the form of heat. It is dependent of temperature and/or aggregation state GELLISH translation energy translation energy is a kinetic energy where the motion is a linear velocity. Typically calculated by U = ½.m.v2 GELLISH chemical energy chemical energy is an energy that is required or becomes available during a chemical reaction GELLISH electrical energy electrical energy is an energy that exists in the form of electricity GELLISH heat heat is a thermal energy that crosses a system boundary under influence of a temperature difference or gradient ISO 31-4:1992(E) mechanical energy mechanical energy is an external energy that is present because of the motion or location of material relative to another material GELLISH nuclear energy nuclear energy is an energy that is nuclear GELLISH enthalpy enthalpy is a thermodynamic property that is the energy content per unit of mass (H = U + p.V). ISO 31-4:1992(E) moment moment is a torque that is a force at a distance from a center line in a direction rectangular to the radius ISO 1000 unavoidable energy unavoidable energy is an energy that consumption cannot be delayed and that would be wasted if it could not be transformed into electricity. GELLISH active energy active energy is an electrical energy transformable into some other form of energy. GELLISH reactive energy reactive energy is an electrical energy that is exchanged continuously between the different electric and magnetic fields associated with the operation of an a.c. electrical system and of all the connected apparatus GELLISH energy shortfall energy shortfall is an energy that availability is lacking with respect to the energy demand over a stated period of time. GELLISH energy loss energy loss is an energy being a time integral of power losses. GELLISH accelerating torque accelerating torque is a torque that is the difference between the electromagnetic starting torque and the total load torque, available for accelerating the rotating parts. GELLISH braking torque braking torque is a torque exerted by a motor, in the same direction as the load torque, so as to reduce its speed. GELLISH energy output energy output is an energy delivered by a battery under specified conditions of discharge GELLISH locked-rotor torque locked-rotor torque is a torque that is the minimum measured torque which the motor will develop with the rotor locked and rated voltage applied at rated frequency. GELLISH pull-in torque pull-in torque is a torque that is the maximum torque against which a synchronous motor will pull its connected load into synchronism at rated voltage and frequency, when the field excitation, if used, is applied. GELLISH pull-out torque pull-out torque is a torque that is the highest torque that an electric motor can develop during its start up from stationary to full load, while running at rated voltage and frequency. GELLISH pull-up torque pull-up torque is a torque that is the smallest torque developed by an electric motor between zero speed and the speed that corresponds to the pull-out torque (breakdown torque) when the motor is supplied at the rated voltage and frequency. GELLISH rated load torque rated load torque is a torque that is the shaft torque of a motor corresponding to rated output and speed. GELLISH synchronous pull-out torque synchronous pull-out torque is a torque that is the maximum torque that a synchronous machine can develop without loss of synchronism while operating at rated voltage, frequency and excitation. GELLISH enthalpy-vol enthalpy-vol is an enthalpy that is an enthalpy in energy per force per mass GELLISH average energy loss per ion pair formed average energy loss per ion pair formed is an energy ISO 31 energy imparted energy imparted is an energy ISO 31 mean energy imparted mean energy imparted is an energy ISO 31 radiant energy radiant energy is an energy ISO 31 reaction energy reaction energy is an energy ISO 31 resonance energy resonance energy is an energy ISO 31 thermodynamic energy thermodynamic energy is an energy ISO 31 internal energy internal energy is an energy that is an intrinsic property of a physical object in equilibrium GELLISH external energy external energy is an energy that is due to the surrounding of the possessor of the energy GELLISH enthalpy of vaporisation enthalpy of vaporisation is an enthalpy of a material which is the difference between the enthalpy of the saturated vapor and that of the saturated liquid at the same temperature. GELLISH enthalpy of formation enthalpy of formation is an enthalpy that is the isothermal enthalpy change in a synthesis reaction from the elements in their standard states. GELLISH strain energy strain energy is an energy ISO 10303-104:2000 acceptor ionization energy acceptor ionization energy is an energy GELLISH alpha disintegration energy alpha disintegration energy is an energy GELLISH beta disintegration energy beta disintegration energy is an energy GELLISH donor ionization energy donor ionization energy is an energy GELLISH fermi energy fermi energy is an energy GELLISH gap energy gap energy is an energy GELLISH Hartree energy Hartree energy is an energy GELLISH maximum beta particle energy maximum beta particle energy is an energy GELLISH molar optical rotatory power molar optical rotatory power is an energy GELLISH molar thermodynamic energy molar thermodynamic energy is an energy GELLISH torque at maximum continuous rotational speed torque at maximum continuous rotational speed is a torque that occurs at the maximum continuous rotational speed. GELLISH set torque set torque is a torque that is set at a required value. GELLISH reset torque reset torque is a torque that is intended to be present after a reset of a control function. GELLISH Pa PAL pascal UNECE/CEFACT Rec20 1e6 MPa MPA megapascal UNECE/CEFACT Rec20 1e3 kPa KPA kilopascal UNECE/CEFACT Rec20 1e5 0.0 bar BAR bar [unit of pressure] UNECE/CEFACT Rec20 1e7 0.0 hbar HBA hectobar UNECE/CEFACT Rec20 1e2 0.0 mbar MBR millibar UNECE/CEFACT Rec20 1e8 0.0 kbar KBA kilobar UNECE/CEFACT Rec20 101325 0.0 atm ATM standard atmosphere UNECE/CEFACT Rec20 1e9 GPa A89 gigapascal UNECE/CEFACT Rec20 1e-6 uPa B96 micropascal UNECE/CEFACT Rec20 1e2 hPa A97 hectopascal UNECE/CEFACT Rec20 1e1 0.0 daPa H75 decapascal UNECE/CEFACT Rec20 1e-1 0.0 ubar B85 microbar UNECE/CEFACT Rec20 1 0.0 N/m2 C55 newton per square metre UNECE/CEFACT Rec20 1e6 0.0 N/mm2 C56 newton per square millimetre UNECE/CEFACT Rec20 6.894757e3 0.0 lbf/in2 PS pound-force per square inch UNECE/CEFACT Rec20 9.80665 0.0 kgf/m2 B40 kilogram-force per square metre UNECE/CEFACT Rec20 133.3224 0.0 Torr UA torr UNECE/CEFACT Rec20 98066.5 0.0 at ATT technical atmosphere UNECE/CEFACT Rec20 9.80665e1 0.0 cmH2O H78 conventional centimetre of water UNECE/CEFACT Rec20 9.80665 0.0 mmH2O HP conventional millimetre of water UNECE/CEFACT Rec20 133.3224 0.0 mmHg HN conventional millimetre of mercury UNECE/CEFACT Rec20 1.333224e3 0.0 cmHg J89 centimetre of mercury UNECE/CEFACT Rec20 2.989067e3 0.0 ftH2O K24 foot of water UNECE/CEFACT Rec20 4.063666e4 0.0 ftHg K25 foot of mercury UNECE/CEFACT Rec20 98.0665 0.0 gf/cm2 K31 gram-force per square centimetre UNECE/CEFACT Rec20 9.80665e4 0.0 kgf/cm2 E42 kilogram-force per square centimetre UNECE/CEFACT Rec20 9.80665e-6 0.0 kgf.m/cm2 E41 kilogram-force per square millimetre UNECE/CEFACT Rec20 47.88026 0.0 lbf/ft2 K85 pound-force per square foot UNECE/CEFACT Rec20 1e-1 0.0 dyn/cm2 D9 dyne per square centimetre UNECE/CEFACT Rec20 pressure pressure is a property that is a force applied to, or distributed, over a surface. It is a force perpendicular to the area divided by area (p = dF/dA where dF is the perpendicular component of the force acting on the area element dA). ISO 31-3:1992(E) stress or pressure normal stress normal stress is a stress that acts in a direction perpendicular to the cut surface. Typically expressed in Pa. ISO 31 stress or pressure shear stress shear stress is a stress due to shear. It is the product of shear rate and viscosity. ISO 31-3:1992(E) stress or pressure bulk modulus bulk modulus is a property ISO 31 stress or pressure stress stress is a second order tensor property that is a force per area acting upon a surface or a body and producing or tending to produce deformation in a substance. Typically its magnitude varies over the direction. GELLISH stress or pressure sound pressure sound pressure is a pressure that is the difference between the instantaneous total pressure and the static pressure. ISO 31-7:1992(E) / IEC 61360 stress or pressure bending stress bending stress is a stress due to bending. GELLISH stress or pressure pressure stress pressure stress is a stress that is due to pressure. GELLISH stress or pressure tension stress tension stress is a stress that is due to tension, being a degree of being stretched. GELLISH stress or pressure torsion stress torsion stress is a stress that is due to torsion. GELLISH stress or pressure fatigue strength fatigue strength is a stress that is the maximum repeated stress a material can take without breaking, regardless of number of applied stress cycles. GELLISH stress or pressure static pressure static pressure is a pressure in a material in rest or as if in rest. E.g. in the absence of sound waves and wind. ISO 31-7:1992(E) / IEC 61360 stress or pressure wind pressure wind pressure is a pressure that a wind will practice on an item when that item is subject to wind. GELLISH stress or pressure design pressure design pressure is a pressure for which an item is designed to withstand. Normally an internal pressure, assuming absolute vacuum on the outside surface. It is typically derived from various normal and possible abnormal operating conditions. Different values may be applicable for different parts such as at suction and at discharge. GELLISH stress or pressure external pressure external pressure is a pressure that is expressed on the outside of an item GELLISH stress or pressure internal pressure internal pressure is a pressure that is expressed on the inside of an item GELLISH stress or pressure maximum pressure maximum pressure is a pressure that is maximum occurring or allowed GELLISH stress or pressure minimum pressure minimum pressure is a pressure that is a minimum possible or allowed or occurring or required GELLISH stress or pressure operating pressure operating pressure is a pressure at which a physical object operates. Typically occurring in a fluid and exposed to a surface of an object that forms a barrier to the fluid. GELLISH stress or pressure set pressure set pressure is a pressure at which an item is intended to start an operation. GELLISH stress or pressure vacuum vacuum is a pressure below atmospheric pressure. GELLISH stress or pressure allowable pressure allowable pressure is a pressure that is allowed. It may be interpreted as the upper limit of a pressure range. GELLISH stress or pressure hydrostatic pressure hydrostatic pressure is a pressure GELLISH stress or pressure relief pressure relief pressure is a pressure at which a relief device starts to discharge a fluid. GELLISH stress or pressure settling out pressure settling out pressure is a pressure GELLISH stress or pressure test pressure test pressure is a pressure required or applied to execute a pressure test. Typically the maximum allowable operating pressure multiplied with a specified factor. GELLISH stress or pressure vent system pressure vent system pressure is a pressure GELLISH stress or pressure partial pressure partial pressure is a pressure of a component in a mixture GELLISH stress or pressure critical pressure critical pressure is a pressure at the critical point GELLISH stress or pressure vapour pressure vapour pressure is a pressure of the vapour phase of a substance over the liquid phase when the phases are in equilibrium. ISO 1998 def. 2-002 stress or pressure steam out pressure steam out pressure is a pressure at which inside cleaning of an item should take place. It may be determining for stress analysis as design condition GELLISH stress or pressure nominal pressure nominal pressure is a pressure that is used to name a pressure, a series of pressures or pressure ranges GELLISH stress or pressure triple point pressure triple point pressure is a pressure at which all three phases, solid, liquid and vapour, of a substance can occur simultaneously. GELLISH stress or pressure blast pressure blast pressure is a pressure caused by an explosion or detonation. GELLISH stress or pressure drag pressure drag pressure is a pressure that is a resistance to motion through a fluid. GELLISH stress or pressure dynamic pressure dynamic pressure is a pressure that is created by fluid velocity GELLISH stress or pressure lower required pressure limit lower required pressure limit is a pressure that is the lower limit of the required pressure. GELLISH stress or pressure upper required pressure limit upper required pressure limit is a pressure that is the upper limit of the required pressure. GELLISH stress or pressure load (pressure) load (pressure) is a pressure expelled by a material on another material. Typically by wind or explosion. GELLISH stress or pressure back pressure back pressure is a pressure that occurs downstream of a device, at the low pressure side. GELLISH stress or pressure pressure at battery limit pressure at battery limit is a pressure at the location in the medium at the battery limit of the unit under consideration. GELLISH stress or pressure atmospheric pressure atmospheric pressure is a pressure of the atmosphere. GELLISH stress or pressure opening pressure opening pressure is a pressure at which something opens due to the pressure. GELLISH stress or pressure dew point pressure dew point pressure is a pressure above which condensation of vapor in gas takes place at a given temperature. Typically the pressure at which a dew point temperature is determined. GELLISH stress or pressure bench set bench set of air that is expelled on a diaphragm of a valve that causes a valve to open. GELLISH stress or pressure closing pressure closing pressure is a pressure of a controlled fluid at which a valve closes. Typically measured at the valve inlet. GELLISH stress or pressure protection pressure protection pressure is a pressure for which exceeding an item is protected. Typically by a set pressure of a relief valve. GELLISH stress or pressure pop pressure pop pressure is a pressure at which a relief valve suddenly opens. GELLISH stress or pressure vacuum pressure vacuum pressure is a pressure that is below atmospheric pressure. GELLISH stress or pressure actual pressure actual pressure is a pressure at which something actually is or was. It can be a local pressure, a pressure varying in space and/or time or an average pressure in a space and/or over time. GELLISH stress or pressure boiling pressure boiling pressure is a pressure at which a pure substance boils at a given temperature. GELLISH stress or pressure Pa/K C64 pascal per kelvin UNECE/CEFACT Rec20 1.241056e4 0.0 psi/degF K86 pound-force per square inch degree Fahrenheit UNECE/CEFACT Rec20 pressure coefficient pressure coefficient is a property that is an increase in pressure per increase of a unit of temperature ISO 31-4 / IEC 61360 1/Pa C96 reciprocal pascal or pascal to the power minus one UNECE/CEFACT Rec20 1.450377e-4 0.0 1/psi K93 reciprocal psi UNECE/CEFACT Rec20 compressibility compressibility is a property that can be calculated from volume change due to pressure change as -(1/V).dV/dP ISO 31-3:1992(E) vapour compressibility vapour compressibility is a compressibility of a vapour. GELLISH critical compressibility critical compressibility is a compressibility at the critical point GELLISH isentropic compressibility isentropic compressibility is a compressibility at constant entropy. Typically expressed in /Pa ISO 31-4 / IEC 61360 m4 B83 metre to the fourth power UNECE/CEFACT Rec20 1e-12 0.0 mm4 G77 millimetre to the fourth power UNECE/CEFACT Rec20 41.62314e-8 0.0 in4 D69 inch to the fourth power UNECE/CEFACT Rec20 second moment of area second moment of area is a property of the cross section at a point on a beam evaluated about the area centroid - see ISO 10303-104:2000 - 5.13.16. It is a property of a shape which indicates the efficiency of that shape in respect of its resistance to bending. Certain shapes are better able to resist bending than others and, in general, a shape is more efficient when the greater part of its mass is as far as possible from its centroid (or centre of gravity). ISO 31 Pa.s C65 pascal second UNECE/CEFACT Rec20 1e-3 mPa.s C24 millipascal second UNECE/CEFACT Rec20 0.1 0.0 P 89 poise UNECE/CEFACT Rec20 1e-3 0.0 cP C7 centipoise UNECE/CEFACT Rec20 1e-6 0.0 uP J32 micropoise UNECE/CEFACT Rec20 4.133789e-4 0.0 lb/ft.h K67 pound per foot hour UNECE/CEFACT Rec20 1.488164 0.0 lb/ft.s K68 pound per foot second UNECE/CEFACT Rec20 47.88026 0.0 lbf.s/ft2 K91 pound-force second per square foot UNECE/CEFACT Rec20 6.894757e3 0.0 lbf.s/in2 K92 pound-force second per square inch UNECE/CEFACT Rec20 47.88026 0.0 slug/ft.s L64 slug per foot second UNECE/CEFACT Rec20 dynamic viscosity dynamic viscosity is a viscosity that is a resistance to change of form. GELLISH m2/s S4 square metre per second UNECE/CEFACT Rec20 1e-6 0.0 mm2/s C17 millimetre squared per second UNECE/CEFACT Rec20 1e-4 0.0 St 91 stokes UNECE/CEFACT Rec20 1e-6 0.0 cSt 4C centistokes UNECE/CEFACT Rec20 0.09290304 0.0 ft2/s S3 square foot per second UNECE/CEFACT Rec20 6.4516e-4 0.0 in2/s G08 square inch per second UNECE/CEFACT Rec20 kinematic viscosity kinematic viscosity is a viscosity that indicates an internal friction due to relative motion. GELLISH thermal diffusivity thermal diffusivity is a property ISO 31-4 / IEC 61360 diffusion coefficient diffusion coefficient is a property Typically expressed in m2/s GELLISH thermal diffusion coefficient thermal diffusion coefficient is a property GELLISH diffusion coefficient for neutron number density diffusion coefficient for neutron number density is a diffusion coefficient ISO 31 N/m 4P newton per metre UNECE/CEFACT Rec20 1e-3 mN/m C22 millinewton per metre UNECE/CEFACT Rec20 1e2 0.0 N/cm M23 newton per centimetre UNECE/CEFACT Rec20 1e-3 0.0 dyn/cm DX dyne per centimetre UNECE/CEFACT Rec20 surface tension surface tension is a stress that is an interfacial tension in the surface of separation between two fluids. GELLISH N.m/m2 M34 newton metre per square metre UNECE/CEFACT Rec20 torsional stiffness area-related torsional moment W WTT watt UNECE/CEFACT Rec20 1e3 kW KWT kilowatt UNECE/CEFACT Rec20 1e6 MW MAW megawatt UNECE/CEFACT Rec20 1e9 GW A90 gigawatt UNECE/CEFACT Rec20 1e-3 mW C31 milliwatt UNECE/CEFACT Rec20 1e-6 uW D80 microwatt UNECE/CEFACT Rec20 1e-7 0.0 erg/s A63 erg per second UNECE/CEFACT Rec20 1.355818 0.0 ft.lbf/s A74 foot pound-force per second UNECE/CEFACT Rec20 9.80665 0.0 kgf.m/s B39 kilogram-force metre per second UNECE/CEFACT Rec20 735.49875 0.0 metrichp HJ metric horse power UNECE/CEFACT Rec20 7.354988e2 0.0 CV A25 cheval vapeur UNECE/CEFACT Rec20 7.457e2 0.0 BHP BHP brake horse power UNECE/CEFACT Rec20 3.766161e-4 0.0 ft.lbf/h K15 foot pound-force per hour UNECE/CEFACT Rec20 2.259697e-2 0.0 ft.lbf/min K16 foot pound-force per minute UNECE/CEFACT Rec20 9.80950e3 0.0 boilerhp K42 horsepower (boiler) UNECE/CEFACT Rec20 2.930711e-1 0.0 BtuIT/h 2I British thermal unit (international table) per hour UNECE/CEFACT Rec20 17.584266 0.0 BtuIT/min J44 British thermal unit (international table) per minute UNECE/CEFACT Rec20 1.055056e3 0.0 BtuIT/s J45 British thermal unit (international table) per second UNECE/CEFACT Rec20 0.2928751 0.0 Btuth/h J47 British thermal unit (thermochemical) per hour UNECE/CEFACT Rec20 17.57250 0.0 Btuth/min J51 British thermal unit (thermochemical) per minute UNECE/CEFACT Rec20 1.054350e3 0.0 Btuth/s J52 British thermal unit (thermochemical) per second UNECE/CEFACT Rec20 6.973333e-2 0.0 calth/min J81 calorie (thermochemical) per minute UNECE/CEFACT Rec20 4.184 0.0 calth/s J82 calorie (thermochemical) per second UNECE/CEFACT Rec20 1.16222 0.0 kcalth/h E15 kilocalorie (thermochemical) per hour UNECE/CEFACT Rec20 69.73333 0.0 kcalth/min K54 kilocalorie (thermochemical) per minute UNECE/CEFACT Rec20 4.184e3 0.0 kcalth/s K55 kilocalorie (thermochemical) per second UNECE/CEFACT Rec20 1e12 TW D31 terawatt UNECE/CEFACT Rec20 746 0.0 electrichp K43 horsepower (electric) UNECE/CEFACT Rec20 1e-9 nW C49 nanowatt UNECE/CEFACT Rec20 1e-12 pW C75 picowatt UNECE/CEFACT Rec20 power power is an energy flow rate that is a rate of energy transfer. ISO 31-3:1992(E) heat flow rate heat flow rate is an energy flow rate in the form of heat. It is the rate at which heat crosses a given surface. ISO 31-4:1992(E) active power active power is a power that is the mean value, taken over one period, of the instantaneous power. GELLISH radiant power radiant power is a power ISO 31 sound power sound power is a power of sound ISO 31-7 / IEC 61360 kg/s KGS kilogram per second UNECE/CEFACT Rec20 2.77778e-10 0.0 mg/h 4M milligram per hour UNECE/CEFACT Rec20 1.15741e-8 0.0 g/d F26 gram per day UNECE/CEFACT Rec20 2.77778e-7 0.0 g/h F27 gram per hour UNECE/CEFACT Rec20 1.66667e-5 0.0 g/min F28 gram per minute UNECE/CEFACT Rec20 1e-3 0.0 g/s F29 gram per second UNECE/CEFACT Rec20 1.15741e-5 0.0 kg/d F30 kilogram per day UNECE/CEFACT Rec20 2.77778e-4 0.0 kg/h E93 kilogram per hour UNECE/CEFACT Rec20 1.66667e-2 0.0 kg/min F31 kilogram per minute UNECE/CEFACT Rec20 1.15741e-11 0.0 mg/d F32 milligram per day UNECE/CEFACT Rec20 1.66667e-8 0.0 mg/min F33 milligram per minute UNECE/CEFACT Rec20 1e-6 0.0 mg/s F34 milligram per second UNECE/CEFACT Rec20 2.519958e-1 0.0 tonUS/h 4W ton (US) per hour UNECE/CEFACT Rec20 1.259979e-4 0.0 lb/h 4U pound per hour UNECE/CEFACT Rec20 5.249912e-6 0.0 lb/d K66 pound (avoirdupois) per day UNECE/CEFACT Rec20 7.559873e-3 0.0 lb/min K78 pound (avoirdupois) per minute UNECE/CEFACT Rec20 0.4535924 0.0 lb/s K81 pound (avoirdupois) per second UNECE/CEFACT Rec20 3.281194e-7 0.0 oz/d L33 ounce (avoirdupois) per day UNECE/CEFACT Rec20 7.874867e-6 0.0 oz/h L34 ounce (avoirdupois) per hour UNECE/CEFACT Rec20 4.72492e-4 0.0 oz/min L35 ounce (avoirdupois) per minute UNECE/CEFACT Rec20 2.834952e-2 0.0 oz/s L36 ounce (avoirdupois) per second UNECE/CEFACT Rec20 1.689109e-4 0.0 slug/d L63 slug per day UNECE/CEFACT Rec20 4.053861e-3 0.0 slug/h L66 slug per hour UNECE/CEFACT Rec20 0.2432317 0.0 slug/min L67 slug per minute UNECE/CEFACT Rec20 14.59390 0.0 slug/s L68 slug per second UNECE/CEFACT Rec20 1.15741e-2 0.0 t/d L71 tonne per day UNECE/CEFACT Rec20 16.6667 0.0 t/min L78 tonne per minute UNECE/CEFACT Rec20 1e3 0.0 t/s L81 tonne per second UNECE/CEFACT Rec20 1.175980e-2 0.0 tonUK/d L85 ton long per day UNECE/CEFACT Rec20 1.049982e-2 0.0 tonUS/d L88 ton short per day UNECE/CEFACT Rec20 mass flow rate mass flow rate is a flow rate that is a quantity of mass which crosses a given surface area per unit of time. ISO 31-3:1992(E) kg/m2.s H56 kilogram per square metre second UNECE/CEFACT Rec20 mass per time per area m3/s MQS cubic metre per second UNECE/CEFACT Rec20 2.77778e-4 0.0 m3/h MQH cubic metre per hour UNECE/CEFACT Rec20 1e-6 0.0 ml/s 40 millilitre per second UNECE/CEFACT Rec20 1.66667e-8 0.0 ml/min 41 millilitre per minute UNECE/CEFACT Rec20 1.15741e-8 0.0 l/d LD litre per day UNECE/CEFACT Rec20 1e-6 0.0 cm3/s 2J cubic centimetre per second UNECE/CEFACT Rec20 2.77778e-4 0.0 kl/h 4X kilolitre per hour UNECE/CEFACT Rec20 1.66667e-5 0.0 l/min L2 litre per minute UNECE/CEFACT Rec20 1.15741e-11 0.0 cm3/d G47 cubic centimetre per day UNECE/CEFACT Rec20 2.77778e-10 0.0 cm3/h G48 cubic centimetre per hour UNECE/CEFACT Rec20 1.66667e-8 0.0 cm3/min G49 cubic centimetre per minute UNECE/CEFACT Rec20 2.77778e-7 0.0 dm3/h E92 cubic decimetre per hour UNECE/CEFACT Rec20 1.15741e-5 0.0 m3/d G52 cubic metre per day UNECE/CEFACT Rec20 1.66667e-2 0.0 m3/min G53 cubic metre per minute UNECE/CEFACT Rec20 1e-3 0.0 l/s G51 litre per second UNECE/CEFACT Rec20 1.15741e-11 0.0 ml/d G54 millilitre per day UNECE/CEFACT Rec20 2.77778e-10 0.0 ml/h G55 millilitre per hour UNECE/CEFACT Rec20 7.86579e-6 0.0 ft3/h 2K cubic foot per hour UNECE/CEFACT Rec20 4.719474e-4 0.0 ft3/min 2L cubic foot per minute UNECE/CEFACT Rec20 2.64979e-3 0.0 barrelUS/min 5A barrel (US) per minute UNECE/CEFACT Rec20 6.309020e-5 0.0 galUS/min G2 US gallon per minute UNECE/CEFACT Rec20 7.57682e-5 0.0 galUK/min G3 Imperial gallon per minute UNECE/CEFACT Rec20 4.55196e-9 0.0 in3/h G56 cubic inch per hour UNECE/CEFACT Rec20 2.73118e-7 0.0 in3/min G57 cubic inch per minute UNECE/CEFACT Rec20 1.63871e-5 0.0 in3/s G58 cubic inch per second UNECE/CEFACT Rec20 1.0515e-6 0.0 gal/h G50 gallon (US) per hour UNECE/CEFACT Rec20 2.651886 0.0 bblUKliq/min J58 barrel (UK petroleum) per minute UNECE/CEFACT Rec20 1.8415874e-6 0.0 bblUKliq/d J59 barrel (UK petroleum) per day UNECE/CEFACT Rec20 4.419810e-5 0.0 bblUKliq/h J60 barrel (UK petroleum) per hour UNECE/CEFACT Rec20 0.15911315 0.0 bblUKliq/s J61 barrel (UK petroleum) per second UNECE/CEFACT Rec20 4.416314e-5 0.0 bblUS/h J62 barrel (US petroleum) per hour UNECE/CEFACT Rec20 0.1589873 0.0 bblUS/s J63 barrel (US petroleum) per second UNECE/CEFACT Rec20 4.209343e-7 0.0 buUK/d J64 bushel (UK) per day UNECE/CEFACT Rec20 1.010242e-5 0.0 buUK/h J65 bushel (UK) per hour UNECE/CEFACT Rec20 6.061453e-4 0.0 buUK/min J66 bushel (UK) per minute UNECE/CEFACT Rec20 3.636872e-2 0.0 buUK/s J67 bushel (UK) per second UNECE/CEFACT Rec20 4.078596e-7 0.0 buUSdry/d J68 bushel (US dry) per day UNECE/CEFACT Rec20 9.788631e-6 0.0 buUSdry/h J69 bushel (US dry) per hour UNECE/CEFACT Rec20 5.873178e-4 0.0 buUSdry/min J70 bushel (US dry) per minute UNECE/CEFACT Rec20 3.523907e-2 0.0 buUSdry/s J71 bushel (US dry) per second UNECE/CEFACT Rec20 1.15741e-8 0.0 dm3/d J90 cubic decimetre per day UNECE/CEFACT Rec20 1.66667e-5 0.0 dm3/min J92 cubic decimetre per minute UNECE/CEFACT Rec20 1e-3 0.0 dm3/s J93 cubic decimetre per second UNECE/CEFACT Rec20 3.288549e-10 0.0 flozUK/d J95 ounce (UK fluid) per day UNECE/CEFACT Rec20 7.892517e-9 0.0 flozUK/h J96 ounce (UK fluid) per hour UNECE/CEFACT Rec20 4.73551e-7 0.0 flozUK/min J97 ounce (UK fluid) per minute UNECE/CEFACT Rec20 2.841306e-5 0.0 flozUK/s J98 ounce (UK fluid) per second UNECE/CEFACT Rec20 3.422862e-10 0.0 flozUS/d J99 ounce (US fluid) per day UNECE/CEFACT Rec20 8.214869e-9 0.0 flozUS/h K10 ounce (US fluid) per hour UNECE/CEFACT Rec20 4.928922e-7 0.0 flozUS/min K11 ounce (US fluid) per minute UNECE/CEFACT Rec20 2.957353e-5 0.0 flozUS/s K12 ounce (US fluid) per second UNECE/CEFACT Rec20 3.277413e-7 0.0 ft3/d K22 cubic foot per day UNECE/CEFACT Rec20 5.261678e-8 0.0 galUK/d K26 gallon (UK) per day UNECE/CEFACT Rec20 1.262803e-6 0.0 galUK/h K27 gallon (UK) per hour UNECE/CEFACT Rec20 4.54609e-3 0.0 galUK/s K28 gallon (UK) per second UNECE/CEFACT Rec20 3.785412e-3 0.0 galUSliq/s K30 gallon (US liquid) per second UNECE/CEFACT Rec20 1.644274e-5 0.0 giUK/d K32 gill (UK) per day UNECE/CEFACT Rec20 3.946258e-8 0.0 giUK/h K33 gill (UK) per hour UNECE/CEFACT Rec20 0.02367755 0.0 giUK/min K34 gill (UK) per minute UNECE/CEFACT Rec20 1.420653e-4 0.0 giUK/s K35 gill (UK) per second UNECE/CEFACT Rec20 1.369145e-9 0.0 giUS/d K36 gill (US) per day UNECE/CEFACT Rec20 3.285947e-8 0.0 giUS/h K37 gill (US) per hour UNECE/CEFACT Rec20 1.971568e-6 0.0 giUS/min K38 gill (US) per minute UNECE/CEFACT Rec20 1.182941e-4 0.0 giUS/s K39 gill (US) per second UNECE/CEFACT Rec20 1.315420e-8 0.0 qtUKliq/d K94 quart (UK liquid) per day UNECE/CEFACT Rec20 3.157008e-7 0.0 qtUKliq/h K95 quart (UK liquid) per hour UNECE/CEFACT Rec20 1.894205e-5 0.0 qtUKliq/min K96 quart (UK liquid) per minute UNECE/CEFACT Rec20 1.136523e-3 0.0 qtUKliq/s K97 quart (UK liquid) per second UNECE/CEFACT Rec20 1.095316e-8 0.0 qtUSliq/d K98 quart (US liquid) per day UNECE/CEFACT Rec20 2.628758e-7 0.0 qtUSliq/h K99 quart (US liquid) per hour UNECE/CEFACT Rec20 1.577255e-5 0.0 qtUSliq/min L10 quart (US liquid) per minute UNECE/CEFACT Rec20 9.463529e-4 0.0 qtUSliq/s L11 quart (US liquid) per second UNECE/CEFACT Rec20 1.052336e-7 0.0 pkUK/d L44 peck (UK) per day UNECE/CEFACT Rec20 2.525606e-6 0.0 pkUK/h L45 peck (UK) per hour UNECE/CEFACT Rec20 1.5153635e-4 0.0 pkUK/min L46 peck (UK) per minute UNECE/CEFACT Rec20 9.092181e-3 0.0 pkUK/s L47 peck (UK) per second UNECE/CEFACT Rec20 1.019649e-7 0.0 pkUSdry/d L48 peck (US dry) per day UNECE/CEFACT Rec20 2.447158e-6 0.0 pkUSdry/h L49 peck (US dry) per hour UNECE/CEFACT Rec20 1.468295e-4 0.0 pkUSdry/min L50 peck (US dry) per minute UNECE/CEFACT Rec20 8.809768e-3 0.0 pkUSdry/s L51 peck (US dry) per second UNECE/CEFACT Rec20 6.577098e-9 0.0 ptUK/d L53 pint (UK) per day UNECE/CEFACT Rec20 1.578504e-7 0.0 ptUK/h L54 pint (UK) per hour UNECE/CEFACT Rec20 9.471022e-6 0.0 ptUK/min L55 pint (UK) per minute UNECE/CEFACT Rec20 5.682613e-4 0.0 ptUK/s L56 pint (UK) per second UNECE/CEFACT Rec20 5.476580e-9 0.0 ptUSliq/d L57 pint (US liquid) per day UNECE/CEFACT Rec20 1.314379e-7 0.0 ptUSliq/h L58 pint (US liquid) per hour UNECE/CEFACT Rec20 7.886275e-6 0.0 ptUSliq/min L59 pint (US liquid) per minute UNECE/CEFACT Rec20 4.731765e-4 0.0 ptUSliq/s L60 pint (US liquid) per second UNECE/CEFACT Rec20 8.849015e-6 0.0 yd3/d M12 cubic yard per day UNECE/CEFACT Rec20 2.123764e-4 0.0 yd3/h M13 cubic yard per hour UNECE/CEFACT Rec20 1.274258e-2 0.0 yd3/min M15 cubic yard per minute UNECE/CEFACT Rec20 0.7645549 0.0 yd3/s M16 cubic yard per second UNECE/CEFACT Rec20 volume flow rate volume flow rate is a flow rate that is the volumetric throughput per unit of time through a surface. It consists of a flow rate size and a direction. ISO 31-3:1992(E), ISO 31-7:1992(E) K KEL kelvin UNECE/CEFACT Rec20 degC 1 273.15 degree Celsius UNECE/CEFACT Rec20 temperature K/s F12 kelvin per second UNECE/CEFACT Rec20 1.543210e-4 0.0 degF/h J23 degree Fahrenheit per hour UNECE/CEFACT Rec20 9.259259e-3 0.0 degF/min J24 degree Fahrenheit per minute UNECE/CEFACT Rec20 0.5555556 0.0 degF/s J25 degree Fahrenheit per second UNECE/CEFACT Rec20 1.543210e-4 0.0 degR/h J28 degree Rankine per hour UNECE/CEFACT Rec20 9.259259e-3 0.0 degR/min J29 degree Rankine per minute UNECE/CEFACT Rec20 0.5555556 0.0 degR/s J30 degree Rankine per second UNECE/CEFACT Rec20 2.77778e-4 0.0 K/h F10 kelvin per hour UNECE/CEFACT Rec20 1.66667e-2 0.0 K/min F11 kelvin per minute UNECE/CEFACT Rec20 temperature drift W/m2 D54 watt per square metre UNECE/CEFACT Rec20 1e-3 mW/m2 C32 milliwatt per square metre UNECE/CEFACT Rec20 1e-6 uW/m2 D85 microwatt per square metre UNECE/CEFACT Rec20 1e-12 pW/m2 C76 picowatt per square metre UNECE/CEFACT Rec20 1e-3 0.0 erg/s.cm2 A64 erg per second square centimetre UNECE/CEFACT Rec20 1e-3 0.0 erg/cm2.s A65 erg per square centimetre second UNECE/CEFACT Rec20 energy flux energy flux is a flux that is the rate of energy per unit of area flowing through a surface. heat flux heat flux is an energy flux that is the rate of heat per unit of area flowing through a surface. ISO 31-4 / IEC 61360 sound intensity sound intensity is a property that is a sound power per unit of area ISO 31-7 / IEC 61360 W/m.K D53 watt per metre kelvin UNECE/CEFACT Rec20 6230.64 0.0 BtuIT/s.ft.degR A22 British thermal unit (international table) per second foot degree Rankine UNECE/CEFACT Rec20 418.68 0.0 calIT/s.cm.K D71 International Table (IT) calorie per second centimetre kelvin UNECE/CEFACT Rec20 418.4 0.0 calth/s.cm.K D38 calorie (thermochemical) per second centimetre kelvin UNECE/CEFACT Rec20 1.730735 0.0 BtuIT.ft/h.ft2.degF J40 British thermal unit (international table) foot per hour square foot degree Fahrenheit UNECE/CEFACT Rec20 0.1442279 0.0 BtuIT.in/h.ft2.degF J41 British thermal unit (international table) inch per hour square foot degree Fahrenheit UNECE/CEFACT Rec20 5.192204e2 0.0 BtuIT.in/s.ft2.degF J42 British thermal unit (international table) inch per second square foot degree Fahrenheit UNECE/CEFACT Rec20 1.729577 0.0 Btuth.ft/h.ft2.degF J46 British thermal unit (thermochemical) foot per hour square foot degree Fahrenheit UNECE/CEFACT Rec20 0.1441314 0.0 Btuth.in/h.ft2.degF J48 British thermal unit (thermochemical) inch per hour square foot degree Fahrenheit UNECE/CEFACT Rec20 5.188732e2 0.0 Btuth.in/s.ft2.degF J49 British thermal unit (thermochemical) inch per second square foot degree Fahrenheit UNECE/CEFACT Rec20 4.184e2 0.0 calth/cm.s.degC J78 calorie (thermochemical) per centimetre second degree Celsius UNECE/CEFACT Rec20 thermal conductivity thermal conductivity is a property that is a quantity of heat energy transferred through a unit of cross sectional area due to a unit of differential temperature. In other words it is the thermal conductance per unit of cross sectional area. It is an areal heat flow rate divided by temper ISO 31-4:1992(E) W/m2.K D55 watt per square metre kelvin UNECE/CEFACT Rec20 4.1868e4 0.0 calIT/s.cm2.K D72 International Table (IT) calorie per second square centimetre kelvin UNECE/CEFACT Rec20 4.184e4 0.0 calth/s.cm2.K D39 calorie (thermochemical) per second square centimetre kelvin UNECE/CEFACT Rec20 20441.7 0.0 BtuIT/s.ft2.degR A20 British thermal unit (international table) per second square foot degree Rankine UNECE/CEFACT Rec20 5.67826 0.0 BtuIT/h.ft2.degR A23 British thermal unit (international table) per hour square foot degree Rankine UNECE/CEFACT Rec20 heat transfer coefficient heat transfer coefficient is a property that is a watt per square meter kelvin ISO 1000 surface coefficient of heat transfer surface coefficient of heat transfer is a heat transfer coefficient ISO 31-4 / IEC 61360 m2.K/W D19 square metre kelvin per watt UNECE/CEFACT Rec20 0.176228 0.0 degF.h.ft2/Btuth J19 degree Fahrenheit hour square foot per British thermal unit (thermochemical) UNECE/CEFACT Rec20 0.1761102 0.0 degF.h.ft2/BtuIT J22 degree Fahrenheit hour square foot per British thermal unit (international table) UNECE/CEFACT Rec20 0.155 0.0 clo J83 clo UNECE/CEFACT Rec20 coefficient of thermal insulation coefficient of thermal insulation is a property ISO 31-4 / IEC 61360 K/W B21 kelvin per watt UNECE/CEFACT Rec20 thermal resistance thermal resistance is a property that is a resistance against heat transfer. It is equal to a temperature difference divided by heat flow rate. ISO 31-4:1992(E) / IEC 61360 W/K D52 watt per kelvin UNECE/CEFACT Rec20 thermal conductance Measure for the amount of available states for a system. Wikipedia J/K JE joule per kelvin UNECE/CEFACT Rec20 1e3 kJ/K B41 kilojoule per kelvin UNECE/CEFACT Rec20 heat capacity heat capacity is a thermodynamic property that is the derivative of heat added to a material and the resulting increase in temperature. When the temperature of a system is increased by dT as a result of the addition of a small quantity of heat dQ, the quantity dQ/dT is the heat capacity (C = dQ/dT). GELLISH entropy entropy is a thermodynamic property that, for systems in equilibrium is an intrinsic property of the system, functionally related to the measurable coordinates that characterize the system GELLISH J/kg.K B11 joule per kilogram kelvin UNECE/CEFACT Rec20 4.1868e3 0.0 BtuIT/lb.degF J43 British thermal unit (international table) per pound degree Fahrenheit UNECE/CEFACT Rec20 4.184e3 0.0 Btuth/lb.degF J50 British thermal unit (thermochemical) per pound degree Fahrenheit UNECE/CEFACT Rec20 4.1868e3 0.0 calIT/g.degC J76 calorie (international table) per gram degree Celsius UNECE/CEFACT Rec20 4.184e3 0.0 calth/g.degC J79 calorie (thermochemical) per gram degree Celsius UNECE/CEFACT Rec20 1e3 kJ/kg.K B43 kilojoule per kilogram kelvin UNECE/CEFACT Rec20 4186.8 0.0 Btu/ITlb.degR A21 British thermal unit (international table) per pound degree Rankine UNECE/CEFACT Rec20 4186.8 0.0 calIT/g.K D76 calorie (international table) per gram kelvin UNECE/CEFACT Rec20 4.184e3 0.0 calth/g.K D37 calorie (thermochemical) per gram kelvin UNECE/CEFACT Rec20 specific entropy specific entropy is a property that is an entropy per unit of mass. It is representative for a kind of substance. ISO 31-4:1992(E) specific heat capacity specific heat capacity is a property that is a heat content increase per unit of mass per unit of temperature. GELLISH J/kg J2 joule per kilogram UNECE/CEFACT Rec20 1e6 MJ/kg JK megajoule per kilogram UNECE/CEFACT Rec20 1e3 kJ/kg B42 kilojoule per kilogram UNECE/CEFACT Rec20 2326 0.0 BtuIT/lb AZ British thermal unit (international table) per pound UNECE/CEFACT Rec20 4186.8 0.0 calIT/g D75 calorie (international table) per gram UNECE/CEFACT Rec20 4184 0.0 calth/g B36 calorie (thermochemical) per gram UNECE/CEFACT Rec20 specific energy specific energy is a ratio of an amount of energy relative to a mass. Typically of the output of a battery. GELLISH specific thermodynamic energy specific thermodynamic energy is a property ISO 31 specific enthalpy specific enthalpy is a property that is an enthalpy per unit of mass. It is representative for a kind of substance. ISO 31 A AMP ampere UNECE/CEFACT Rec20 1e3 kA B22 kiloampere UNECE/CEFACT Rec20 1e6 MA H38 megaampere UNECE/CEFACT Rec20 1e-3 mA 4K milliampere UNECE/CEFACT Rec20 1e-6 uA B84 microampere UNECE/CEFACT Rec20 1e-9 nA C39 nanoampere UNECE/CEFACT Rec20 1e-12 pA C70 picoampere UNECE/CEFACT Rec20 electric current rate electric current rate is a flow rate of electricity, in particular a rate of flow of electric charge. ISO 31-5:1992(E) magnetic potential difference magnetic potential difference is a property difference that is the magnetic potential difference between point 1 and point 2 on a given path, is the line integral from 1 to 2 of the magnetic field strength along that path. ISO 31-5:1992(E) magnetomotive force magnetomotive force is a property GELLISH current linkage current linkage is an electric current rate ISO 31 C COU coulomb UNECE/CEFACT Rec20 1 0.0 A.s A8 ampere second UNECE/CEFACT Rec20 3.6e3 0.0 A.h AMH ampere hour UNECE/CEFACT Rec20 3.6e6 0.0 kA.h TAH kiloampere hour (thousand ampere hour) UNECE/CEFACT Rec20 1e6 MC D77 megacoulomb UNECE/CEFACT Rec20 1e-3 mC D86 millicoulomb UNECE/CEFACT Rec20 1e3 kC B26 kilocoulomb UNECE/CEFACT Rec20 1e-6 uC B86 microcoulomb UNECE/CEFACT Rec20 1e-9 nC C40 nanocoulomb UNECE/CEFACT Rec20 1e-12 pC C71 picocoulomb UNECE/CEFACT Rec20 electric charge electric charge is a property that is a quantity of electricity that flows in an electric current or that can be accumulated on the surface of dissimilar non-metallic surfaces when rubbed together. ISO 31-5:1992(E) electric flux electric flux is a property that is the scalar product of an electric flux density and a surface element across that surface element. ISO 31-5:1992(E) elementary charge elementary charge is an electric charge GELLISH C/m3 A29 coulomb per cubic metre UNECE/CEFACT Rec20 1e9 GC/m3 A84 gigacoulomb per cubic metre UNECE/CEFACT Rec20 1e9 0.0 C/mm3 A30 coulomb per cubic millimetre UNECE/CEFACT Rec20 1e6 MC/m3 B69 megacoulomb per cubic metre UNECE/CEFACT Rec20 1e6 0.0 C/cm3 A28 coulomb per cubic centimetre UNECE/CEFACT Rec20 1e3 kC/m3 B27 kilocoulomb per cubic metre UNECE/CEFACT Rec20 1e-3 mC/m3 D88 millicoulomb per cubic metre UNECE/CEFACT Rec20 1e-6 uC/m3 B87 microcoulomb per cubic metre UNECE/CEFACT Rec20 charge density charge density is a property that is an electric charge per unit of volume. ISO 1000 C/m2 A34 coulomb per square metre UNECE/CEFACT Rec20 1e6 MC/m2 B70 megacoulomb per square metre UNECE/CEFACT Rec20 1e6 0.0 C/mm2 A35 coulomb per square millimetre UNECE/CEFACT Rec20 1e4 0.0 C/cm2 A33 coulomb per square centimetre UNECE/CEFACT Rec20 1e3 kC/m2 B28 kilocoulomb per square metre UNECE/CEFACT Rec20 1e-3 mC/m2 D89 millicoulomb per square metre UNECE/CEFACT Rec20 1e-6 uC/m2 B88 microcoulomb per square metre UNECE/CEFACT Rec20 Electric displacement Strength of the electric displacement. Wikipedia surface density of charge surface density of charge is a property that is an electric charge per unit of area ISO 1000 electric flux density electric flux density is a property is an electric flux per square meter ISO 31-5 / IEC 61360 V/m D50 volt per metre UNECE/CEFACT Rec20 1e6 MV/m B79 megavolt per metre UNECE/CEFACT Rec20 1e3 kV/m B55 kilovolt per metre UNECE/CEFACT Rec20 1e2 0.0 V/cm D47 volt per centimetre UNECE/CEFACT Rec20 1e-3 mV/m C30 millivolt per metre UNECE/CEFACT Rec20 1e-6 uV/m C3 microvolt per metre UNECE/CEFACT Rec20 electric field strength electric field strength is a vector property that is a voltage per unit of distance. ISO 1000 V VLT volt UNECE/CEFACT Rec20 1e6 MV B78 megavolt UNECE/CEFACT Rec20 1e3 kV KVT kilovolt UNECE/CEFACT Rec20 1e-3 mV 2Z millivolt UNECE/CEFACT Rec20 1e-6 uV D82 microvolt UNECE/CEFACT Rec20 electric potential The amount of work required to bring a unit charge into an electric field from infinity. Wikipedia voltage voltage is a property difference that is a potential relative to a reference potential. Typically relative to the potential of the earth. GELLISH induced voltage induced voltage is a voltage that is induced in a conductor due to a varying magnetic field GELLISH terminal voltage terminal voltage is a voltage measured at the terminals of an item of electrical equipment GELLISH voltage required for starting voltage required for starting is a voltage that is the minimum required to start the motor GELLISH redox potential redox potential is a voltage that indicates the affinity of a substance for electrons - its electronegativity - compared with hydrogen (which is set at 0). GELLISH electromotive force electromotive force is a voltage at the terminals of the ideal voltage source in the representation of an active element GELLISH touch voltage touch voltage is a voltage appearing during an insulation fault, between simultaneously accessible parts. GELLISH operating voltage operating voltage is a voltage under operating conditions, at a given instant and a given location GELLISH phase to phase voltage phase to phase voltage is a voltage between phases. GELLISH phase to neutral voltage phase to neutral voltage is a voltage between a phase in a polyphase system and the neutral point. GELLISH phase to earth voltage phase to earth voltage is a voltage between phase and earth. GELLISH neutral point displacement voltage neutral point displacement voltage is a voltage between the real or virtual neutral point and the earth. GELLISH rated voltage rated voltage is a voltage for which an item is designed to operate. Typically a primary power voltage (for a three-phase supply, the phase-to-phase voltage) as declared by the manufacturer. GELLISH maximum voltage maximum voltage is a voltage that is maximally occurring or allowed. GELLISH minimum voltage minimum voltage is a voltage that is minimally occurring or allowed. GELLISH test voltage test voltage is a voltage under testing conditions. GELLISH alternating current component alternating current component is a voltage that is the quantity derived by removing the direct component from the pulsating quantity. GELLISH ceiling voltage ceiling voltage is a voltage that is the maximum voltage that a generator, under normal operating conditions, is required to supply at its terminals for a limited time. GELLISH closed-circuit voltage closed-circuit voltage is a voltage across the terminals of a voltage source when an external current is flowing. GELLISH direct-axis component of synchronous generated voltage direct-axis component of synchronous generated voltage is a voltage that is that component of the synchronous generated voltage induced by the flux due to the quadrature-axis component of the magnetomotive force of the synchronous machine. GELLISH direct-axis component of voltage direct-axis component of voltage is a voltage resulting from the vectorial addition of the direct-axis component of the synchronous generated voltage and the voltage drop in the direct axis. GELLISH direct voltage component direct voltage component is a voltage that is the mean value, taken over one period, of the pulsating quantity GELLISH disengaging voltage disengaging voltage is a voltage at which a relay disengages under specified conditions. GELLISH end-of-charge voltage end-of-charge voltage is a voltage of a cell or battery during charging at a specified constant current when a cell of battery has become completely charged GELLISH energizing voltage energizing voltage is a voltage that alone, or in combination with any other such quantity, applied to a relay under specified conditions enables it to fulfil its purpose. GELLISH limiting continuous thermal withstand value of energizing voltage limiting continuous thermal withstand value of energizing voltage is a voltage that is that highest value (r.m.s. if a.c.) of the energizing voltage that a relay can carry continuously and under specified conditions, while satisfying the temperature requirements. GELLISH limiting dynamic value of an energizing voltage limiting dynamic value of an energizing voltage is a voltage that is the highest value of an energizing voltage that a relay can withstand under specified conditions of waveform and duration without permanent degradation of the specified characteristics due to the resultant dynamic effect. GELLISH limiting short-time thermal withstand value of an energizing voltage limiting short-time thermal withstand value of an energizing voltage is a voltage that is that highest value (r.m.s. if a.c.) of the energizing voltage that a relay can withstand under specified conditions for a specified short time without permanent degradation of the specified characteristics due to overheating. GELLISH negative sequence voltage component negative sequence voltage component is a voltage that is one of the three symmetrical sequence components which exists only in an unsymmetrical three-phase system of sinusoidal quantities GELLISH non-operate voltage non-operate voltage is a voltage at which a relay does not operate under specified conditions. GELLISH non-release voltage non-release voltage is a voltage at which a relay does not release under specified conditions. GELLISH open-circuit voltage open-circuit voltage is a voltage across the terminals of a voltage source when no external current is flowing GELLISH operate voltage operate voltage is a voltage at which a relay operates under specified conditions. GELLISH operating range of an energizing voltage operating range of an energizing voltage is a voltage that is the range of values of a given energizing voltage for which the relay under specified conditions, is able to perform its intended function(s) according to the specified requirements. GELLISH positive sequence voltage component positive sequence voltage component is a voltage that is one of the three symmetrical sequence components which exists in symmetrical and unsymmetrical three-phase system(s) of sinusoidal quantities GELLISH quadrature-axis component of synchronous generated voltage quadrature-axis component of synchronous generated voltage is a voltage that is that component of the synchronous generated voltage induced by the flux due to the direct-axis component of the magnetomotive force of the synchronous machine. GELLISH quadrature-axis component of voltage quadrature-axis component of voltage is a voltage resulting from the vectorial addition of the quadrature-axis component of the synchronous generated voltage and the voltage drop in the quadrature axis. GELLISH rated value of energizing voltage rated value of energizing voltage is a voltage that is that value of the energizing voltage that is assigned either by the standard or the manufacturer, for a specified condition. GELLISH rectified mean voltage rectified mean voltage is a voltage that is the mean value, taken over one period , of the instantaneous absolute values of the alternating quantities GELLISH release voltage release voltage is a voltage at which a relay releases under specified conditions. GELLISH resetting voltage resetting voltage is a voltage at which a relay resets under specified conditions. GELLISH residual voltage residual voltage is a voltage equal to the sum of the phase-to-earth voltages GELLISH starting voltage starting voltage is a voltage at which a relay starts under specified conditions. GELLISH switching voltage switching voltage is a voltage at which a relay switches under specified conditions. GELLISH synchronous generated voltage synchronous generated voltage is a voltage that would be generated in the primary windings on open-circuit, in the absence of saturation, by the excitation current for the conditions under consideration. GELLISH zero sequence voltage component zero sequence voltage component is a voltage that is one of the three symmetrical sequence components which exists only in an unsymmetrical three-phase system of sinusoidal quantities GELLISH alternating electric current voltage alternating electric current voltage is a voltage of an alternating current which alternates between positive and negative values. GELLISH direct current voltage direct current voltage is a voltage that has constantly positive values. GELLISH control voltage control voltage is a voltage required for control GELLISH system voltage system voltage is a voltage GELLISH root mean square voltage root mean square voltage is a voltage of an alternating current that is a steady direct current voltage that would generate heat at the same rate in a given resistance as the voltage of the alternating current. For a sinusoid wave amplitude: Vrms = Vmax/sqrt(2). GELLISH auxiliary voltage auxiliary voltage is a voltage of a current other than the input current. GELLISH boost voltage boost voltage is a voltage that is applied at initial charging of a battery. A battery that is shipped wet and fully charged loses some charge in transit or while standing idle before installation. Therefore, at the first opportunity, it should be given a boost charge, using either the constant voltage method or the constant current method. GELLISH equalize voltage equalize voltage is a voltage intended to set a battery up when first installed. Typically equal to a boost voltage. GELLISH float voltage float voltage is a voltage that is continuously supplying a low current from a battery charger applied to a battery in the standby mode to make up for internal losses and maintain the battery in a fully charged state. GELLISH resistance free voltage resistance free voltage is a voltage at the open circuit terminals of a battery which is free from the equivalent series resistance voltage drop error. GELLISH nominal voltage nominal voltage is a voltage that is to be described by qualitatively or by a suitable approximate value of voltage and is used to designate or identify a system. GELLISH F FAR farad UNECE/CEFACT Rec20 1e-3 mF C10 millifarad UNECE/CEFACT Rec20 1e-6 uF 4O microfarad UNECE/CEFACT Rec20 1e-9 nF C41 nanofarad UNECE/CEFACT Rec20 1e-12 pF 4T picofarad UNECE/CEFACT Rec20 capacitance capacitance is a property that is the quotient of the current by the time derivative of the voltage or a charge divided by a potential difference. GELLISH F/m A69 farad per metre UNECE/CEFACT Rec20 1e-3 0.0 F/km H33 farad per kilometre UNECE/CEFACT Rec20 1e-6 uF/m B89 microfarad per metre UNECE/CEFACT Rec20 1e-9 nF/m C42 nanofarad per metre UNECE/CEFACT Rec20 1e-12 pF/m C72 picofarad per metre UNECE/CEFACT Rec20 permittivity permittivity is a property that is correlated with an electric flux density epsilon and an electric field strength E as permittivity D = electric flux density.electric field strength (D = epsilon.E). ISO 1000 / ISO 31-5:1992(E) permittivity of vacuum permittivity of vacuum is a permittivity that is a capacitance per unit of length ISO 31-5 / IEC 61360 C.m A26 coulomb metre UNECE/CEFACT Rec20 electric dipole moment electric dipole moment is a property that is the product of the distance between the two electric poles of a dipole and the magnitude of either pole. GELLISH electric dipole moment of molecule electric dipole moment of molecule is an electric dipole moment of the molecules of a kind within a material. GELLISH A/m2 A41 ampere per square metre UNECE/CEFACT Rec20 1e6 MA/m2 B66 megaampere per square metre UNECE/CEFACT Rec20 1e6 0.0 A/mm2 A7 ampere per square millimetre UNECE/CEFACT Rec20 1e4 0.0 A/cm2 A4 ampere per square centimetre UNECE/CEFACT Rec20 1e3 kA/m2 B23 kiloampere per square metre UNECE/CEFACT Rec20 areic electric current areic electric current is an electric current rate ISO 31 current density current density is an areic electric current ISO 1000 C/kg.s A31 coulomb per kilogram second UNECE/CEFACT Rec20 1 0.0 A/kg H31 ampere per kilogram UNECE/CEFACT Rec20 2.58e-4 0.0 R/s D6 roentgen per second UNECE/CEFACT Rec20 exposure rate A/m AE ampere per metre UNECE/CEFACT Rec20 1e3 kA/m B24 kiloampere per metre UNECE/CEFACT Rec20 1e3 0.0 A/mm A3 ampere per millimetre UNECE/CEFACT Rec20 1e2 0.0 A/cm A2 ampere per centimetre UNECE/CEFACT Rec20 1 0.0 mA/mm F76 milliampere per millimetre UNECE/CEFACT Rec20 3.93700787401575e-2 0.0 mA/in F08 milliampere per inch UNECE/CEFACT Rec20 magnetization magnetization is a property ISO 1000 linear electric current density linear electric current density is a property ISO 31 magnetic field strength magnetic field strength is a vector property the rotation (curl) of which is equal to the sum of the electric current density and the time derivative of the electric flux density. ISO 1000 / ISO 31-5:1992(E) T D33 tesla UNECE/CEFACT Rec20 1e-3 mT C29 millitesla UNECE/CEFACT Rec20 1e-6 uT D81 microtesla UNECE/CEFACT Rec20 1e-9 nT C48 nanotesla UNECE/CEFACT Rec20 magnetic flux density magnetic flux density is a property ISO 1000 magnetic induction magnetic induction is a property ISO 1000 magnetic polarization magnetic polarization is a property ISO 31 lower critical magnetic flux density lower critical magnetic flux density is a magnetic flux density GELLISH Wb WEB weber UNECE/CEFACT Rec20 1e-3 mWb C33 milliweber UNECE/CEFACT Rec20 magnetic flux magnetic flux is a flux that is the rate of magnetic lines of force flowing through a surface. It is the scalar product of the magnetic flux density and the surface element across which it is defined. ISO 31-5:1992(E) Wb/m D59 weber per metre UNECE/CEFACT Rec20 1e3 kWb/m B56 kiloweber per metre UNECE/CEFACT Rec20 1e3 0.0 Wb/mm D60 weber per millimetre UNECE/CEFACT Rec20 magnetic vector potential magnetic vector potential is a property ISO 1000 H 81 henry UNECE/CEFACT Rec20 1e-3 mH C14 millihenry UNECE/CEFACT Rec20 1e-6 uH B90 microhenry UNECE/CEFACT Rec20 1e-9 nH C43 nanohenry UNECE/CEFACT Rec20 1e-12 pH C73 picohenry UNECE/CEFACT Rec20 inductance inductance is a property that is the quotient of the voltage by the time derivative of the current GELLISH self inductance self inductance is a property of a thin conducting loop, which is the magnetic flux through the loop, caused by an electric current in the loop, divided by that current. ISO 31-5:1992(E) mutual inductance mutual inductance is an inductance that is the quotient of the magnetic flux induced in one circuit by the current in another circuit which produces that flux GELLISH permeance permeance is a property that is the reciprocal of reluctance GELLISH H/m A98 henry per metre UNECE/CEFACT Rec20 1e-6 uH/m B91 microhenry per metre UNECE/CEFACT Rec20 1e-9 nH/m C44 nanohenry per metre UNECE/CEFACT Rec20 permeability permeability is a property that is a measure for the possibility to allow material to flow through an item ISO 31-5:1992(E) permeability of vacuum permeability of vacuum is a permeability ISO 31 magnetic constant magnetic constant is a property ISO 31 A.m2 A5 ampere square metre UNECE/CEFACT Rec20 electromagnetic moment electromagnetic moment is a property ISO 31 magnetic moment magnetic moment is a property ISO 31 J/m3 B8 joule per cubic metre UNECE/CEFACT Rec20 1e6 MJ/m3 JM megajoule per cubic metre UNECE/CEFACT Rec20 1e-1 0.0 erg/cm3 A60 erg per cubic centimetre UNECE/CEFACT Rec20 energy density Amount of energy per unit volume. Wikipedia volumetric energy density volumetric energy density is a property that is an amount of energy relative to a volume. Typically an energy output of a battery per unit of its volume. GELLISH electromagnetic energy density electromagnetic energy density is a volumetric energy density ISO 31 volumic electromagnetic energy volumic electromagnetic energy is a volumetric energy density ISO 31 radiant energy density radiant energy density is a volumetric energy density ISO 31 sound energy density sound energy density is a property that is an energy level due to sound per unit of volume. ISO 31-7 / IEC 61360 ohm OHM ohm UNECE/CEFACT Rec20 1e9 Gohm A87 gigaohm UNECE/CEFACT Rec20 1e6 Mohm B75 megaohm UNECE/CEFACT Rec20 1e12 Tohm H44 teraohm UNECE/CEFACT Rec20 1e3 kohm B49 kiloohm UNECE/CEFACT Rec20 1e-3 mohm E45 milliohm UNECE/CEFACT Rec20 1e-6 uohm B94 microohm UNECE/CEFACT Rec20 electric resistance electric resistance is a property that is a barrier which limits an electrical current resulting from a given difference in potential between two points in a material. It can be determined as the quotient of the voltage by the current. GELLISH impedance impedance is a property that is an apparent opposition to a flow of alternating current or any other varying current at a particular frequency. It is a combination of resistance R and reactance X. It takes into account a possible phase offset. The practical difference between impedance and resistance is that impedance changes as a function of frequency. ISO 31 / IEC 50-131-01-25 modulus of impedance modulus of impedance is a scalar property that is equal to the quotient of the r.m.s. value of the voltage by the r.m.s. value of the current of a 2-terminal circuit. Correlated with … as |Z| = root (R2 + X2). ISO 31-5:1992(E) and IEC 50-131-01-24 reactance reactance is a property that is the imaginary part of a complex impedance. Typically of an a.c. circuit due to capacitance and inductance. ISO 31, IEC 50-131-01-27 S SIE siemens UNECE/CEFACT Rec20 1e3 kS B53 kilosiemens UNECE/CEFACT Rec20 1e-3 mS C27 millisiemens UNECE/CEFACT Rec20 1e-6 uS B99 microsiemens UNECE/CEFACT Rec20 conductance Measure for how easily current flows through a material. GELLISH electric conductance electric conductance is a property that is the power to conduct electric current. It is the reciprocal of electric resistance. Typically expressed in S GELLISH S/m D10 siemens per metre UNECE/CEFACT Rec20 1e-4 0.0 uS/cm G42 microsiemens per centimetre UNECE/CEFACT Rec20 1e-6 uS/m G43 microsiemens per metre UNECE/CEFACT Rec20 1e2 0.0 S/cm H43 siemens per centimetre UNECE/CEFACT Rec20 1e-1 0.0 mS/cm H61 millisiemens per centimetre UNECE/CEFACT Rec20 1e-12 0.0 pS/m L42 pikosiemens per metre UNECE/CEFACT Rec20 1e6 MS/m B77 megasiemens per metre UNECE/CEFACT Rec20 1e3 kS/m B54 kilosiemens per metre UNECE/CEFACT Rec20 1e-7 0.0 nS/cm G44 nanosiemens per centimetre UNECE/CEFACT Rec20 1e-9 nS/m G45 nanosiemens per metre UNECE/CEFACT Rec20 electric conductivity electric conductivity is a property that is the possibility to allow the flow of an electric current. It is the reciproque of electrical resistance (gamma = 1/rho). Typically expressed in S/m ISO 31-5:1992(E) ohm.m C61 ohm metre UNECE/CEFACT Rec20 1e9 Gohm.m A88 gigaohm metre UNECE/CEFACT Rec20 1e6 Mohm.m B76 megaohm metre UNECE/CEFACT Rec20 1e9 0.0 Mohm.km H88 megaohm kilometre UNECE/CEFACT Rec20 1e3 kohm.m B50 kiloohm metre UNECE/CEFACT Rec20 1e-2 0.0 ohm.cm C60 ohm centimetre UNECE/CEFACT Rec20 1e-3 mohm.m C23 milliohm metre UNECE/CEFACT Rec20 1e-6 uohm.m B95 microohm metre UNECE/CEFACT Rec20 1e-9 nohm.m C46 nanoohm metre UNECE/CEFACT Rec20 1e3 0.0 ohm.km M24 ohm kilometre UNECE/CEFACT Rec20 resistivity resistivity is a property that is an opposition against the flow of electric current in a material. A low resistivity indicates a material that readily allows the movement of electrons. The SI unit for electrical resistivity is the ohm metre. Resistance in ohms is equal to the resistivity of the material multiplied by the cross sectional area of the material divided by the length of the material. ISO 1000 / ISO 31-5:1992(E) ohm/m H26 ohm per metre UNECE/CEFACT Rec20 1e9 Gohm/m M26 gigaohm per metre UNECE/CEFACT Rec20 1e-3 0.0 ohm/km F56 ohm per kilometre UNECE/CEFACT Rec20 6.21371e-4 0.0 ohm/mi F55 ohm per mile UNECE/CEFACT Rec20 1e-3 0.0 Mohm/km H36 megaohm per kilometre UNECE/CEFACT Rec20 1e6 Mohm/m H37 megaohm per metre UNECE/CEFACT Rec20 1e-3 mohm/m F54 milliohm per metre UNECE/CEFACT Rec20 electric line reactance electric line resistance 1/H C89 reciprocal henry UNECE/CEFACT Rec20 reluctance reluctance is a property that is the quotient of the magnetomotive force by the associated magnetic flux GELLISH V.A D46 volt - ampere UNECE/CEFACT Rec20 1e6 MV.A MVA megavolt - ampere UNECE/CEFACT Rec20 1e3 kV.A KVA kilovolt - ampere UNECE/CEFACT Rec20 1e-3 mV.A M35 millivolt - ampere UNECE/CEFACT Rec20 apparent power apparent power is a power that is the product of the r.m.s. values of voltage and current at a port. GELLISH var D44 var UNECE/CEFACT Rec20 1e3 kvar K5 kilovolt ampere (reactive) UNECE/CEFACT Rec20 reactive power reactive power is a power that is the imaginary part of the complex power. GELLISH J/m4 B14 joule per metre to the fourth power UNECE/CEFACT Rec20 spectral radiant energy density (in terms of wave length) J/m2 B13 joule per square metre UNECE/CEFACT Rec20 radiance exposure radiance exposure is a property GELLISH 1/s.sr D1 reciprocal second per steradian UNECE/CEFACT Rec20 photon intensity photon intensity is a property ISO 31 1/s.sr.m2 D2 reciprocal second per steradian metre squared UNECE/CEFACT Rec20 photon luminance photon luminance is a property ISO 31 1/m2 C93 reciprocal square metre UNECE/CEFACT Rec20 photon exposure photon exposure is a property ISO 31 W/m H74 watt per metre UNECE/CEFACT Rec20 power gradient W/sr D57 watt per steradian UNECE/CEFACT Rec20 radiant intensity radiant intensity is a property ISO 31 W/sr.m2 D58 watt per steradian square metre UNECE/CEFACT Rec20 radiance radiance is a radiant intensity the radiant intensity of an element of a surface, divided by the area of the orthogonal projection of this element on a plane perpendicular to the given direction, defined at a point on a surface and in a given direction. Typically measured in watt per steradian GELLISH W/m2.K4 D56 watt per square metre kelvin to the fourth power UNECE/CEFACT Rec20 Stefan-Boltzmann constant cd CDL candela UNECE/CEFACT Rec20 luminous intensity luminous intensity is a property that is the quotient of the luminous flux leaving the source and propagated in the element of solid angle containing the given direction, by the element of solid angle. GELLISH lm LUM lumen UNECE/CEFACT Rec20 luminous flux luminous flux is a radiant flux that is the rate of visible light flowing through a surface. The luminous flux d PHI of a source of luminous intensity I in an element of solid angle dOMEGA is given by d(PHI) = I.d(OMEGA). ISO 31-6:1992(E) lm.s B62 lumen second UNECE/CEFACT Rec20 quantity of light quantity of light is a property ISO 1000 lx LUX lux UNECE/CEFACT Rec20 illuminance illuminance is a property that is the quotient of the luminous flux incident on an element of the surface containing the point, by the area of that element GELLISH lx.s B64 lux second UNECE/CEFACT Rec20 luminous exposure luminous exposure is a property ISO 1000 lm/W B61 lumen per watt UNECE/CEFACT Rec20 luminous efficacy luminous efficacy is an efficacy that is the quotient of the luminous flux emitted and the power consumed by the source (K = PHIv/PHIe). ISO 31-6:1992(E) spectral luminous efficacy spectral luminous efficacy is a luminous efficacy ISO 31 maximum spectral luminous efficacy maximum spectral luminous efficacy is a spectral luminous efficacy ISO 31 m2/mol D22 square metre per mole UNECE/CEFACT Rec20 molar absorption coefficient molar absorption coefficient is a property ISO 31 Pa.s/m C67 pascal second per metre UNECE/CEFACT Rec20 10 0.0 dyn.s/cm3 A50 dyne second per cubic centimetre UNECE/CEFACT Rec20 specific acoustic impedance surface density of mechanical impedance surface density of mechanical impedance is a property ISO 31 Pa.s/m3 C66 pascal second per cubic metre UNECE/CEFACT Rec20 1e5 0.0 dyn.s/cm5 A52 dyne second per centimetre to the fifth power UNECE/CEFACT Rec20 1e3 0.0 Pa.s/l M32 pascal second per litre UNECE/CEFACT Rec20 accoustical impedance N.s/m C58 newton second per metre UNECE/CEFACT Rec20 1e-3 0.0 dyn.s/cm A51 dyne second per centimetre UNECE/CEFACT Rec20 mechanical impedance mechanical impedance is an impedance ISO 1000 mol C34 mole UNECE/CEFACT Rec20 1e3 kmol B45 kilomole UNECE/CEFACT Rec20 1e-3 mmol C18 millimole UNECE/CEFACT Rec20 1e-6 umol FH micromole UNECE/CEFACT Rec20 amount of substance 1/mol C95 reciprocal mole UNECE/CEFACT Rec20 inverse amount m3/mol A40 cubic metre per mole UNECE/CEFACT Rec20 1e-3 0.0 dm3/mol A37 cubic decimetre per mole UNECE/CEFACT Rec20 1e-6 0.0 cm3/mol A36 cubic centimetre per mole UNECE/CEFACT Rec20 1e-3 0.0 l/mol B58 litre per mole UNECE/CEFACT Rec20 molar volume molar volume is a property that is a volume per mole of substance. ISO 1000 J/mol B15 joule per mole UNECE/CEFACT Rec20 1e3 kJ/mol B44 kilojoule per mole UNECE/CEFACT Rec20 molar energy Amount of energy present is a system per unit amount of substance. Wikipedia chemical potential chemical potential is a property GELLISH J/mol.K B16 joule per mole kelvin UNECE/CEFACT Rec20 molar heat capacity molar heat capacity is a property that is a heat capacity per molar amount of a substance. ISO 1000 / ISO 31-8:1992(E) molar entropy Amount of entropy present in a system per unit amount of substance. ISO 1000 mol/m3 C36 mole per cubic metre UNECE/CEFACT Rec20 1e3 0.0 mol/l C38 mole per litre UNECE/CEFACT Rec20 1e3 0.0 mol/dm3 C35 mole per cubic decimetre UNECE/CEFACT Rec20 1e3 kmol/m3 B46 kilomole per cubic metre UNECE/CEFACT Rec20 1 0.0 mmol/l M33 millimole per litre UNECE/CEFACT Rec20 humidity humidity is a concentration being a quantity of water per quantity of vapor. GELLISH asphaltene concentration asphaltene concentration is a concentration of asphaltene in a mixture. GELLISH BS&W BS&W is a concentration GELLISH carbon content carbon content is a concentration of carbon, both free and bounded. GELLISH maximum allowable concentration maximum allowable concentration is a concentration of a substance that is the maximum that a human may be exposed to during a given period of time. For example, for a normal working week of five days, eight hours per day, ozone has a MAC-value of 0,06 ppm (parts per million, or mg/L). For 15 minutes, the MAC-value is 0,3 ppm. GELLISH PIANO PIANO is a concentration of the sum of paraffines, isoparaffines, aromatics, naphthenes and olefins GELLISH PNA PNA is a concentration of the sum of paraffines, naphthenes and aromatics GELLISH potential HCl potential HCl is a concentration GELLISH potential hydrogen sulphide potential hydrogen sulphide is a concentration GELLISH volumetric concentration volumetric concentration is a concentration that is the volume of a component in a substance relative to the total volume of the substance GELLISH limit of detection limit of detection is a concentration below which a substance cannot be detected by the item GELLISH concentration concentration is a fraction that is the relative quantity of a substance in a mixture GELLISH mole fraction mole fraction is a concentration that is the quantity of moles of a substance in a mixture relative to the total quantity of moles of the mixture. GELLISH moisture content moisture content is a concentration of moisture in the matter at a point - see ISO 10303-104:2000 - 6.3.23 ISO 10303-104:2000 mass per volume mass per volume is a concentration of the mass of a component in the total volume of a material. GELLISH water and sediment water and sediment is a concentration that is defined in ISO 1998 def. 2-009 ISO 1998-2-009 Molarity s/m3 D93 second per cubic metre UNECE/CEFACT Rec20 volumic dose mol/s E95 mole per second UNECE/CEFACT Rec20 1 0.0 kat KAT katal UNECE/CEFACT Rec20 1e3 kmol/s E94 kilomole per second UNECE/CEFACT Rec20 2.77778e-1 0.0 kmol/h K58 kilomole per hour UNECE/CEFACT Rec20 16.6667 0.0 kmol/min K61 kilomole per minute UNECE/CEFACT Rec20 2.77778e-4 0.0 mol/h L23 mole per hour UNECE/CEFACT Rec20 1.66667e-2 0.0 mol/min L30 mole per minute UNECE/CEFACT Rec20 molar flux enzymatic activity molar flow rate mol/kg C19 mole per kilogram UNECE/CEFACT Rec20 1e-3 mmol/kg D87 millimole per kilogram UNECE/CEFACT Rec20 1 0.0 mmol/g H68 millimole per gram UNECE/CEFACT Rec20 Molality Molinity ionic strength ionic strength is a property GELLISH S.m2/mol D12 siemens square metre per mole UNECE/CEFACT Rec20 molar conductivity molar conductivity is a property GELLISH rad.m2/kg C83 radian square metre per kilogram UNECE/CEFACT Rec20 rotatory power massic optical specific optical rotatory power J.s B18 joule second UNECE/CEFACT Rec20 angular momentum angular momentum is a vector property that is a measure of the rotational momentum of a rotating body or system, that is equal in classical physics to the product of the angular velocity of the body or system and its moment of inertia with respect to the rotation axis, and that is directed al ISO 1000 action Bq BQL becquerel UNECE/CEFACT Rec20 3.7e10 0.0 Ci CUR curie UNECE/CEFACT Rec20 3.7e7 0.0 mCi MCU millicurie UNECE/CEFACT Rec20 3.7e4 0.0 uCi M5 microcurie UNECE/CEFACT Rec20 3.7e13 0.0 kCi 2R kilocurie UNECE/CEFACT Rec20 1e9 GBq GBQ gigabecquerel UNECE/CEFACT Rec20 1e3 kBq 2Q kilobecquerel UNECE/CEFACT Rec20 1e6 MBq 4N megabecquerel UNECE/CEFACT Rec20 1e-6 uBq H08 microbecquerel UNECE/CEFACT Rec20 activity activity is a specific energy GELLISH Bq/m3 A19 becquerel per cubic metre UNECE/CEFACT Rec20 volumic activity volumic activity is a property GELLISH m2/sr D24 square metre per steradian UNECE/CEFACT Rec20 1e-28 0.0 b/sr A17 barn per steradian UNECE/CEFACT Rec20 differential cross-section m2/J D20 square metre per joule UNECE/CEFACT Rec20 6.24151e-10 0.0 b/eV A15 barn per electronvolt UNECE/CEFACT Rec20 1e3 0.0 cm2/erg D16 square centimetre per erg UNECE/CEFACT Rec20 holographic material slab sensitivity m2/sr.J D25 square metre per steradian joule UNECE/CEFACT Rec20 1e3 0.0 cm2/sr.erg D17 square centimetre per steradian erg UNECE/CEFACT Rec20 spectral angular cross-section J/m B12 joule per metre UNECE/CEFACT Rec20 1.60217733e-19 0.0 eV/m A54 electronvolt per metre UNECE/CEFACT Rec20 1e-5 0.0 erg/cm A58 erg per centimetre UNECE/CEFACT Rec20 linear energy transfer linear energy transfer is a property ISO 31 1/s.m3 C98 reciprocal second per cubic metre UNECE/CEFACT Rec20 volume density rate Gy A95 gray UNECE/CEFACT Rec20 1e-3 mGy C13 milligray UNECE/CEFACT Rec20 1e-2 0.0 rad C80 rad (Absorbed dose) UNECE/CEFACT Rec20 radiation dose radiation dose is a dose that is an absorbed quantity of radiation. Typically expressed in Gy ISO 31 absorbed dose absorbed dose is a radiation dose that is an absorbed quantity of radiation. Typically expressed in Gy ISO 31 Sv D13 sievert UNECE/CEFACT Rec20 1e-3 mSv C28 millisievert UNECE/CEFACT Rec20 1e-2 0.0 rem D91 rem UNECE/CEFACT Rec20 1e-5 0.0 mrem L31 milliroentgen aequivalent men UNECE/CEFACT Rec20 dose equivalent dose equivalent is a property expressed in sievert (Sv) ISO 1000 Gy/s A96 gray per second UNECE/CEFACT Rec20 radiation dose rate radiation dose rate is a dose rate that is the rate with which a quantity of radiation is absorbed. Typically expressed in Gy/s. ISO 31 absorbed dose rate absorbed dose rate is a radiation dose rate that is the rate with which a quantity of radiation is absorbed. Typically expressed in Gy/s. ISO 31 C/kg CKG coulomb per kilogram UNECE/CEFACT Rec20 1e-3 mC/kg C8 millicoulomb per kilogram UNECE/CEFACT Rec20 2.58e-4 0.0 R 2C roentgen UNECE/CEFACT Rec20 2.58e-7 0.0 mR 2Y milliroentgen UNECE/CEFACT Rec20 2.58e-1 0.0 kR KR kiloroentgen UNECE/CEFACT Rec20 exposure exposure is a property ISO 31 s/rad.m3 D94 second per cubic metre radian UNECE/CEFACT Rec20 spectral concentration of vibrational modes (in terms of angular frequency) 1/J.m3 C90 reciprocal joule per cubic metre UNECE/CEFACT Rec20 6.24146e18 0.0 1/eV.m3 C88 reciprocal electron volt per cubic metre UNECE/CEFACT Rec20 electronic density of states V/K D48 volt per kelvin UNECE/CEFACT Rec20 1e-3 mV/K D49 millivolt per kelvin UNECE/CEFACT Rec20 Seebeck coefficient Thomson coefficient Euclid Per cent 1e-2 volume ratio relative density relative density is a relative property that is a ratio between a density and a reference density. Typically relative to the density of water at 0 degree Celcius and 1 bar. relative mass density relative density is a relative property that is a ratio between a density and a reference density. Typically relative to the density of water at 0 degree Celcius and 1 bar. linear strain linear strain is a strain that is a relative elongation resulting from a stress. It is measured by the ratio of change to the total value of the dimension in which the change occurred relative elongation linear strain is a strain that is a relative elongation resulting from a stress. It is measured by the ratio of change to the total value of the dimension in which the change occurred shear strain shear strain is a strain volume or bulk strain poisson ratio poisson number friction factor friction factor is a factor that is a measure for a relative roughness of a surface, a flow pattern and a Reynolds number coefficient of friction ratio of the specific heat capacities ratio of the specific heat capacities is a ratio ratio of the massic heat capacity isentropic exponent isentropic exponent is an exponent relative permittivity relative permittivity is a ratio of the capacitance of a capacitor, in which the space between and around the electrodes is entirely and exclusively filled with the insulating material in question, to the capacitance of the same configuration of electrodes in vacuum. electric susceptibility electric susceptibility is a property that can be calculated as chi = epsilon - 1 coupling coefficient leakage coefficient number of turns in a winding number of phases number of pairs of poles relative permeability relative permeability is a relative property magnetic susceptibility magnetic susceptibility is a factor emissivity emissivity is a ratio the relative power of a surface to emit heat by radiation relative to the heat emitted by a blackbody at the same temperature. spectral emissivity spectral emissivity is an emissivity emissivity at a specified wavelength directional spectral emissivity directional spectral emissivity is an emissivity luminous efficiency spectral luminous efficiency luminous efficiency at a specified wavelength CIE colorimetric functions CIE colorimetric functions is a factor coordinates trichromatic spectral absorption factor spectral absorption factor is a factor spectral absorptance spectral reflectionfactor,spectral reflectance spectral transmission factor spectral transmission factor is a transmission factor spectral transmittance spectral radiance factor spectral radiance factor is a factor optical density optical density is a ratio refractive index refractive index is an index dissipation factor dissipation factor is a factor dissipance reflection factor reflection factor is a factor reflectance reflectance of incident radiant energy that is reflected from a surface. transmission factor transmission factor is a factor transmittance transmittance of incident radiant energy that passes through a substance. absorption factor absorption factor is a factor absorbance absorbance of radiant energy absorbed by a body to the corresponding absorption of a blackbody at the same temperature. Absorbance equals emittance on bodies whose temperature is not changing. (A = 1 - R - T, where R is the reflectance and T is the transmittance.). relative atomic mass relative molecular mass number of molecules or other elementary entities number number is a quantity that is a quantity of discrete, countable things. GELLISH d15/15 d15/15 is a specific gravity where the material is at 15 degree C relative to water at 15 degree C GELLISH d15/4 d15/4 is a specific gravity where the material is at 15 degree C relative to water at 4 degree C GELLISH d60/60 d60/60 is a specific gravity where the material is at 60 degree F relative to water at 60 degree F GELLISH API gravity API gravity is a specific gravity that is defined in ISO 1998 def. 2-003 ISO 1998 def. 2-037 specific gravity specific gravity is a ratio of the mass of a material relative to the mass of an equal volume of water at 4 degree C or at another specified temperature and at atmospheric pressure. GELLISH seating capacity seating capacity is a number of people that can sit in a specified area or place. GELLISH operating specific gravity operating specific gravity is a specific gravity at operating conditions. GELLISH number required number required is a number of things that are required. This can be a number of things in a collection of things or a number of things that are identical to the specified single thing or that satisfy the same specifications as the specified single thing. GELLISH standard equilibrium constant standard equilibrium constant is an equilibrium constant mole fraction of B mole ratio of solute B degree of dissociation standard absolute activity of B (in a gaseous mixture) activity coefficient of B (in a liquid as a solid mixture) standard absolute activity of B (in a liquid or a solid mixture) activity coefficient of solute B (especially in a dilute solution) standard absolute activity of solute B (especially in a dilute solution) activity of solvent A relative activity of solvent A (especially in a dilute solution) osmotic coefficient of the solvent A (especially in a dilute solution) standard absolute activity of solvent A (especially in a dilute solution) stoichiometric number of B microcanonical partition function microcanonical partition function is a property canonical partition function canonical partition function is a mathematical function grand-canonical partition function grand-canonical partition function is a canonical partition function grand partition function molecular partition function molecular partition function is a property partition function of a molecule thermal diffusion ratio thermal diffusion factor thermal diffusion factor is a property proton number charge number of ion transport number of ion B current fraction of ion B atomic number neutron number nucleon number mass number (rest) mass of electron (rest) mass of proton (rest) mass of neutron relative mass excess relative mass excess is a property relative mass defect relative mass defect is a property packing fraction binding fraction g-factor of atom or electron g-factor of atom or electron is a property g-factor of nucleus orbital angular momentum quantum number orbital angular momentum quantum number is a property spin angular momentum quantum number spin angular momentum quantum number is a property total angular momentum quantum number total angular momentum quantum number is a property nuclear spin quantum number nuclear spin quantum number is a property hyperfine structure quantum number hyperfine structure quantum number is a property principle quantum number magnetic quantum number magnetic quantum number is a property fine structure constant internal conversion factor neutron yield per fission neutron yield per fission is a yield neutron yield per absorption neutron yield per absorption is a yield fast fission factor fast fission factor is a factor thermal utilization factor thermal utilization factor is a factor non leakage probability multiplication factor multiplication factor is a factor infinite medium multiplication factor infinite medium multiplication factor is a multiplication factor effective multiplication factor effective multiplication factor is a multiplication factor resonance escape probability resonance escape probability is a probability that a neutron slowing down will traverse all or some specified portion of the range of resonance energies without being absorbed in an infinity medium. lethargy lethargy is a factor average logarithmic energy decrement average logarithmic energy decrement is a factor reactivity reactivity is an ability to form a chemical bond or the speed with which a chemical reaction takes place. Reynolds number Reynolds number is a dimensionless property that is the dimensionless ratio between the inertia force and the dynamic force used to describe dynamic similarity. Euler number Euler number is a property Froude number Froude number is a dimensionless property that is a dimensionless parameter for agitation and expressed in impeller diameter. times agitator speed exp.2 , divided by the magnitude of gravity factor. Grashof number Grashof number is a property Weber number Weber number is a dimensionless property that is the dimensional analysis of bubble break-up in gas-liquid systems. Mach number Mach number is a dimensionless property Knudsen number Knudsen number is a property Strouhal number Strouhal number is a property Fourier number Fourier number is a property Peclet number Peclet number is a dimensionless property that is a heat transfer number and the product of the prandl number and the reynolds number. Rayleigh number Rayleigh number is a property Nusselt number Nusselt number is a dimensionless property that is a measure for mass transfer within an agitation process. Stanton number Stanton number is a property Fourier number for mass transfer Fourier number for mass transfer is a Fourier number Peclet number for mass transfer Grashof number for mass transfer Grashof number for mass transfer is a Grashof number Nusselt number for mass transfer Stanton number for mass transfer Prandtl number Schmidt number Schmidt number is a dimensionless property that represents the ratio of momentum to molecular diffusivity. Lewis number Lewis number is a property magnetic Reynolds number Alfven number Alfven number is a property Hartmann number Hartmann number is a property Cowling number Cowling number is a property mobility ratio order of reflexion order of reflexion is a property short-range order parameter short-range order parameter is a property long-range order parameter long-range order parameter is a property Debye-Walle factor Grüneisen parameter Grüneisen parameter is a property Madelung constant Landau-Ginzburg number Landau-Ginzburg number is a property pressure ratio mass ratio yotta 1.0e24 Y yotta zetta 1.0e21 Z zetta exa 1.0e18 E exa peta 1.0e15 P peta tera 1.0e12 T tera giga 1.0e9 G giga mega 1.0e6 M mega kilo 1.0e3 k kilo hecto 1.0e2 h hecto deka 1.0e1 da deka deci 1.0e-1 d deci centi 1.0e-2 c centi milli 1.0e-3 m milli micro 1.0e-6 μ micro nano 1.0e-9 n nano pico 1.0e-12 p pico femto 1.0e-15 f femto atto 1.0e-18 a atto zepto 1.0e-21 z zepto yocto 1.0e-24 y yocto