POSC Specifications
Version 3.0
Epicentre Standard Values
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ref_customary_unit_of_measure

Standard Instance Values

acronym identifier description source version status
        ref _version .identifier  
% percent   POSC epicentre 2.1 current
1/a per annum per year or per annum POSC epicentre 2.1 current
1/angstrom per angstrom   POSC epicentre 2.1 current
1/d per day   POSC epicentre 2.1 current
1/ft per foot   POSC epicentre 2.1 current
1/cm per centimetre   POSC epicentre 2.1 current
1/degF per degree Fahrenheit Considered to be a change in temperature. POSC epicentre 2.1 current
1/degC per degree Celsius Considered to be a change in temperature. POSC epicentre 2.1 current
1/degR per degree Rankine Considered to be a change in temperature. POSC epicentre 2.1 current
1/ft2 per square foot   POSC epicentre 2.1 current
1/km2 per square kilometre   POSC epicentre 2.1 current
1/mi2 per square mile   POSC epicentre 2.1 current
1/g per gram   POSC epicentre 2.1 current
1/h per hour   POSC epicentre 2.1 current
1/mm per millimetre   POSC epicentre 2.1 current
1/nm per nanometre   POSC epicentre 2.1 current
1/mi per mile   POSC epicentre 2.1 current
1/min per minute   POSC epicentre 2.1 current
1/yd per yard   POSC epicentre 2.1 current

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acronym identifier description source version status
1/in per inch   POSC epicentre 2.1 current
1/kPa per kilopascal   POSC epicentre 2.1 current
1/psi per pounds/square inch   POSC epicentre 2.1 current
1/uV per microvolt   POSC epicentre 2.1 current
1/wk per week   POSC epicentre 2.1 current
a annum also, year POSC epicentre 2.1 current
A.h Ampere hour   POSC epicentre 2.1 current
A/mm Ampere/millimetre   POSC epicentre 2.1 current
A/mm2 Ampere/square millimetre   POSC epicentre 2.1 current
acre acre Based on US Survey feet POSC epicentre 2.1 current
acre.ft acre foot Based on US Survey feet POSC epicentre 2.1 current
angstrom Angstrom   POSC epicentre 2.1 current
at Technical atmosphere technical atmosphere (kgf/cm2) POSC epicentre 2.1 current
atm Atmosphere atmosphere (14.696 lbf/in2) POSC epicentre 2.1 current
atm/m Atmospheres/metre   POSC epicentre 2.1 current
bit bit The bit is a unit of storage capacity. The capacity, in bits, of a storage device is the base two logarithm of the number of possible states of the device. POSC epicentre 2.1 current
bar bar   POSC epicentre 2.1 current
b barn   POSC epicentre 2.1 current
b/cm3 barns/cubic centimetre   POSC epicentre 2.1 current
b/elec barns/electron Standard unit for cross-section absorption POSC epicentre 2.1 current

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acronym identifier description source version status
bbl barrel Actual volume. See also stb (stock tank barrel) POSC epicentre 2.1 current
bbl/acre barrels/acre   POSC epicentre 2.1 current
bbl/acre.ft barrel/acre foot   POSC epicentre 2.1 current
bbl/bbl barrel/barrel   POSC epicentre 2.1 current
bbl/cP.d.psi barrels/centiPoise day psi   POSC epicentre 2.1 current
bbl/d barrel/day   POSC epicentre 2.1 current
bbl/d2 barrels/day per day   POSC epicentre 2.1 current
bbl/d.acre.ft barrels/day acre foot   POSC epicentre 2.1 current
bbl/d.ft barrels/day foot   POSC epicentre 2.1 current
bbl/d.psi barrel/day pounds/square inch   POSC epicentre 2.1 current
bbl/d.ft.psi barrels/day foot pounds/sq in   POSC epicentre 2.1 current
bbl/ft barrel/foot   POSC epicentre 2.1 current
bbl/hr barrel/hour   POSC epicentre 2.1 current
bbl/hr2 barrels/hour/hour   POSC epicentre 2.1 current
bbl/in barrel/inch   POSC epicentre 2.1 current
bbl/mi barrel/mile   POSC epicentre 2.1 current
bbl/MMscf(60F) barrels/million std cubic feet, 60 degF MMscf is million standard cubic feet. POSC epicentre 2.1 current
bbl/tonUK barrel per U.K. ton   POSC epicentre 2.1 current
bbl/tonUS barrel per U.S. ton   POSC epicentre 2.1 current
Btu British thermal unit   POSC epicentre 2.1 current

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acronym identifier description source version status
Btu(million)/hr million Btus/hour   POSC epicentre 2.1 current
Btu.in/hr.ft2.F Btus/hour foot squared deg F per inch   POSC epicentre 2.1 current
Btu/bbl British thermal units/barrel   POSC epicentre 2.1 current
Btu/bhp.hr Btus/brake-horsepower hour   POSC epicentre 2.1 current
Btu/ft3 British thermal units/cubic foot   POSC epicentre 2.1 current
Btu/galUK British thermal units/U.K. gallon   POSC epicentre 2.1 current
Btu/galUS British thermal units/U.S. gallon   POSC epicentre 2.1 current
Btu/hr British thermal unit/hour   POSC epicentre 2.1 current
Btu/hr.ft.degF British thermal units/hour foot deg F   POSC epicentre 2.1 current
Btu/hr.ft2 Btus/hour per square foot   POSC epicentre 2.1 current
Btu/hr.ft2.degF Btus/hour foot squared deg F   POSC epicentre 2.1 current
Btu/hr.ft2.degR Btus/hour foot squared deg R   POSC epicentre 2.1 current
Btu/hr.ft3 British thermal units/hour cubic foot   POSC epicentre 2.1 current
Btu/hr.ft3.degF Btus/hour foot cubed deg F   POSC epicentre 2.1 current
Btu/hr.m2.degC Btus/hour metre squared deg C   POSC epicentre 2.1 current
Btu/lbm British thermal units/pound mass   POSC epicentre 2.1 current
Btu/lbm.degF British thermal units/pound mass deg F   POSC epicentre 2.1 current
Btu/lbm.degR British thermal units/pound mass deg R   POSC epicentre 2.1 current
Btu/min British thermal units/minute   POSC epicentre 2.1 current
Btu/mol(lbm) British thermal units/pound mass mol   POSC epicentre 2.1 current

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acronym identifier description source version status
Btu/mol(lbm).F Btus/pound mass mol deg F   POSC epicentre 2.1 current
Btu/s British thermal units/second   POSC epicentre 2.1 current
Btu/s.ft2 British thermal units/second square foot   POSC epicentre 2.1 current
Btu/s.ft2.degF Btus/second per square foot deg F   POSC epicentre 2.1 current
Btu/s.ft3 Btus/second per cubic foot   POSC epicentre 2.1 current
Btu/s.ft3.degF Btus/second per cubic foot deg F   POSC epicentre 2.1 current
C/cm2 Coulombs/square centimetre   POSC epicentre 2.1 current
C/mm2 Coulombs/square millimetre   POSC epicentre 2.1 current
C/mm3 Coulombs/cubic millimetre   POSC epicentre 2.1 current
cal calorie   POSC epicentre 2.1 current
cal/cm3 calories/cubic centimetre   POSC epicentre 2.1 current
cal/mm3 calories/cubic millimetre   POSC epicentre 2.1 current
cal/g calories/gram   POSC epicentre 2.1 current
cal/g.K calories/gram degree Kelvin   POSC epicentre 2.1 current
cal/h.cm.degC calories/hour centimetre degree Celsius   POSC epicentre 2.1 current
cal/h.cm2 calories/hour centimetre squared   POSC epicentre 2.1 current
cal/h.cm2.degC calories/hour square centimetre deg C   POSC epicentre 2.1 current
cal/h.cm3 calories/hour cubic centimetre   POSC epicentre 2.1 current
cal/kg calories/kilogram   POSC epicentre 2.1 current
cal/lbm calories/pound mass   POSC epicentre 2.1 current

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acronym identifier description source version status
cal/mL calories/milliliter   POSC epicentre 2.1 current
cal/mol(g).degC calories/gram mol degree celsius   POSC epicentre 2.1 current
cal/s.cm.degC calories/second centimetre deg C   POSC epicentre 2.1 current
cal/s.cm2.degC calories/second square centimetre deg C   POSC epicentre 2.1 current
cal/s.cm3 calories/second cubic centimetre   POSC epicentre 2.1 current
cEuc centiEuclid per cent (per 100) POSC epicentre 2.1 current
cgr centesimal minute 100 centigrads per grad. POSC epicentre 3.0 current
ccgr centesimal second 100 centesimal seconds per centesimal minute. POSC epicentre 3.0 current
ch ch Similar to a kW POSC epicentre 2.1 current
ch.h ch hours Similar to a kW.h POSC epicentre 2.1 current
chBnA chains British chain (Benoit 1895 A) POSC epicentre 3.0 current
chBnB chains British chain (Benoit 1895 B) POSC epicentre 3.0 current
chCla chains Sears chain POSC epicentre 3.0 current
chSe chains Sears chain POSC epicentre 2.1 current
chUS chains US survey chain POSC epicentre 3.0 current
Chu chus   POSC epicentre 2.1 current
cm centimetre   POSC epicentre 2.1 current
cu capture unit same as sigma POSC epicentre 2.1 current
cm/s centimetre/second   POSC epicentre 2.1 current
cm/s2 centimetre/second squared   POSC epicentre 2.1 current

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acronym identifier description source version status
cm2 square centimetre   POSC epicentre 2.1 current
cm2/g centimetres squared/gram   POSC epicentre 2.1 current
cm2/s centimetres squared/second   POSC epicentre 2.1 current
cm3 cubic centimetre   POSC epicentre 2.1 current
cm3/g cubic centimetres/gram inverse density POSC epicentre 2.1 current
cm3/m3 cubic centimetre/cubic metre 10**-6 unitless POSC epicentre 2.1 current
cm4 centimetres fourth   POSC epicentre 2.1 current
cmH2O(4degC) cm of water at 4 degC.   POSC epicentre 2.1 current
cP centipoise   POSC epicentre 2.1 current
cSt centiStoke   POSC epicentre 2.1 current
cu ft cubic feet preferred is ft3 POSC epicentre 3.0 deprecated
cu in cubic inch preferred is in3 POSC epicentre 3.0 deprecated
cu yd cubic yard preferred is yd3 POSC epicentre 3.0 deprecated
cubem cubem unit of volume - cubic mile. preferred is mi3 POSC epicentre 2.1 current
curie curie   POSC epicentre 2.1 current
CV CV   POSC epicentre 2.1 current
CV.h CV hours   POSC epicentre 2.1 current
cwtUK UK hundredweight   POSC epicentre 2.1 current
cwtUS US hundredweight 100 pounds mass POSC epicentre 2.1 current
c cycle   POSC epicentre 2.1 current

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acronym identifier description source version status
c/s cycles/second also Hz POSC epicentre 2.1 current
d day 24 hours (not sidereal) POSC epicentre 2.1 current
d/ft3 days/cubic foot   POSC epicentre 2.1 current
d/m3 days/cubic metre   POSC epicentre 2.1 current
D darcy units of um2 POSC epicentre 2.1 current
D.ft darcy foot   POSC epicentre 2.1 current
D.m darcy metre   POSC epicentre 2.1 current
dB decibel 1 bel = 10 decibels POSC epicentre 2.1 current
dB/ft decibels/foot   POSC epicentre 2.1 current
dB/m decibels/metre   POSC epicentre 2.1 current
dB/O decibels/octave   POSC epicentre 2.1 current
ddegC change in degrees Celsius   POSC epicentre 2.1 current
ddegK change in degrees Kelvin   POSC epicentre 2.1 current
ddegF change in degrees Fahrenheit   POSC epicentre 2.1 current
ddegR change in degrees Rankine   POSC epicentre 2.1 current
dega degree of an angle   POSC epicentre 2.1 current
dega/ft degrees of an angle/foot   POSC epicentre 2.1 current
dega/ft(100) degrees of an angle/100 feet   POSC epicentre 2.1 current
dega/m(30) degrees of an angle/30 metres   POSC epicentre 3.0 current
dega/m degrees of an angle/metre   POSC epicentre 2.1 current

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acronym identifier description source version status
dega/min degrees of an angle/minute angular velocity POSC epicentre 2.1 current
dAPI API gravity   POSC epicentre 2.1 current
degC degrees Celsius   POSC epicentre 2.1 current
degC/km degrees Celsius/kilometre   POSC epicentre 2.1 current
degC/m degrees Celsius/metre   POSC epicentre 2.1 current
degC.m2.h/kcal degrees C square metres hours/kilocal   POSC epicentre 2.1 current
degF degree Fahrenheit   POSC epicentre 2.1 current
degF.ft2.h/Btu degrees F square feet hours/Btu   POSC epicentre 2.1 current
degF/ft degrees Fahrenheit/foot   POSC epicentre 2.1 current
degF/ft(100) degrees Fahrenheit/100 feet. Used for temperature gradient POSC epicentre 2.1 current
degR degrees Rankine   POSC epicentre 2.1 current
dm decimetre   POSC epicentre 2.1 current
dm3 cubic decimetre Equivalent to a liter POSC epicentre 2.1 current
dm3/kg cubic decimetres/kilogram   POSC epicentre 2.1 current
dm3/km(100) cubic decimetres/100 kilometres   POSC epicentre 2.1 current
dm3/kW.h cubic decimetres/kilowatt hour   POSC epicentre 2.1 current
dm3/m cubic decimetres/metre units of m2 POSC epicentre 2.1 current
dm3/m3 cubic decimetres/cubic metre 10**-3 unitless POSC epicentre 2.1 current
dm3/MJ cubic decimetres/megajoule   POSC epicentre 2.1 current
dm3/mol(kg) cubic decimetres/kilogram mole   POSC epicentre 2.1 current

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acronym identifier description source version status
dm3/s cubic decimetres/second   POSC epicentre 2.1 current
dm3/s2 cubic decimetres/second/second   POSC epicentre 2.1 current
dm3/t cubic decimetres/ton   POSC epicentre 2.1 current
dyne dynes   POSC epicentre 2.1 current
dyne.cm2 dyne centimetre squared   POSC epicentre 2.1 current
dyne.s/cm2 dyne seconds/square centimetre   POSC epicentre 2.1 current
dyne/cm dynes/centimetre   POSC epicentre 2.1 current
dyne/cm2 dynes/square centimetre   POSC epicentre 2.1 current
(dyne/cm)4/gcm3 dynes/centimetre fourth/gram cm cubed   POSC epicentre 2.1 current
EJ exajoule   POSC epicentre 2.1 current
EJ/a exajoules/year   POSC epicentre 2.1 current
eq equivalent   POSC epicentre 2.2.2 current
eq/kg equivalents/ kilogram   POSC epicentre 2.2.2 current
eq/L equivalents/ Liter   POSC epicentre 2.2.2 current
eq/m3 equivalent/ cubic metre   POSC epicentre 2.2.2 current
erg ergs   POSC epicentre 2.1 current
erg/a ergs/year   POSC epicentre 2.1 current
erg/cm2 ergs/square centimetre   POSC epicentre 2.1 current
erg/cm3 ergs/cubic centimetre   POSC epicentre 2.1 current
erg/g ergs/gram   POSC epicentre 2.1 current

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acronym identifier description source version status
erg/kg ergs/kilogram   POSC epicentre 2.1 current
erg/m3 ergs/cubic metre   POSC epicentre 2.1 current
eV electron volts   POSC epicentre 2.1 current
fathom fathoms 6 feet POSC epicentre 2.1 current
fC femtocoulomb   POSC epicentre 2.1 current
fl ozUK UK fluid ounce   POSC epicentre 2.1 current
fl ozUS US fluid ounces   POSC epicentre 2.1 current
flops flops floating point operations per second POSC epicentre 2.1 current
footcandle footcandles   POSC epicentre 2.1 current
footcandle.s footcandle seconds   POSC epicentre 2.1 current
ft foot international foot POSC epicentre 2.1 current
ft.lbf foot pounds force Unit of energy POSC epicentre 2.1 current
ft.lbf/bbl foot pounds force/barrel   POSC epicentre 2.1 current
ft.lbf/galUS foot pounds force/US gallon   POSC epicentre 2.1 current
ft.lbf/lbm foot pounds force/pound mass   POSC epicentre 2.1 current
ft.lbf/min foot pounds force/minute   POSC epicentre 2.1 current
ft.lbf/s foot pounds force/second   POSC epicentre 2.1 current
ft/bbl feet/barrel   POSC epicentre 2.1 current
ft/d feet/day   POSC epicentre 2.1 current
ft/degF feet/degree Fahrenheit   POSC epicentre 2.1 current

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acronym identifier description source version status
ft/ft3 feet/cubic foot   POSC epicentre 2.1 current
ft/galUS feet/US gallon   POSC epicentre 2.1 current
ft/h feet/hour   POSC epicentre 2.1 current
ft/in feet/inch   POSC epicentre 2.1 current
ft/m feet/metre   POSC epicentre 2.1 current
ft/mi feet/mile Multiple of unitless POSC epicentre 2.1 current
ft/min feet/minute velocity POSC epicentre 2.1 current
ft/s feet/second   POSC epicentre 2.1 current
ft/s2 feet/second squared   POSC epicentre 2.1 current
ft2 square foot   POSC epicentre 2.1 current
ft2/h square feet/hour   POSC epicentre 2.1 current
ft2/in3 square feet/cubic inch   POSC epicentre 2.1 current
ft2/s square feet/second   POSC epicentre 2.1 current
ft3 cubic feet   POSC epicentre 2.1 current
ft3/bbl cubic feet/barrel   POSC epicentre 2.1 current
ft3/d cubic feet/day   POSC epicentre 2.1 current
ft3/d.ft.psi cubic feet/day foot psi   POSC epicentre 2.1 current
ft3/d2 cubic feet/day/day   POSC epicentre 2.1 current
ft3/ft cubic feet/foot   POSC epicentre 2.1 current
ft3/ft3 cubic feet/cubic foot   POSC epicentre 2.1 current

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acronym identifier description source version status
ft3/h cubic feet/hour   POSC epicentre 2.1 current
ft3/h2 cubic feet/hour/hour   POSC epicentre 2.1 current
ft3/lbm cubic feet/pound mass   POSC epicentre 2.1 current
ft3/min cubic feet/minute   POSC epicentre 2.1 current
ft3/min2 cubic feet/minute/minute   POSC epicentre 2.1 current
ft3/min.ft2 cubic feet/min square foot   POSC epicentre 2.1 current
ft3/mol(lbm) cubic feet/mole (pound mass)   POSC epicentre 2.1 current
ft3/s cubic feet/second   POSC epicentre 2.1 current
ft3/s2 cubic feet/second/second   POSC epicentre 2.1 current
ft3/s.ft2 cubic feet/second square foot   POSC epicentre 2.1 current
ft3/scf(60F) cubic feet/std cubic foot, 60 deg F   POSC epicentre 2.1 current
ft3(std,60F) cubic feet at standard conditions   POSC epicentre 2.1 current
ftMA Modified American Foot The modified American foot. POSC epicentre 2.1 current
ftCla Imperial Foot Clarke's Foot. POSC epicentre 2.1 current
ftUS US Survey Foot The U. S. legal survey foot. POSC epicentre 2.1 current
ftBnA British Foot (Benoit 1895 A)   POSC epicentre 3.0 current
ftBnB British Foot (Benoit 1895 B)   POSC epicentre 3.0 current
ftBr(65) British Foot 1865   POSC epicentre 3.0 current
ftSe Sears Foot   POSC epicentre 2.2.1 current
ftInd Indian Foot The Imperial Foot modified in India. POSC epicentre 2.2.2 current

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acronym identifier description source version status
ftInd(37) Indian Foot, 1937 The Imperial Foot modified in India. POSC epicentre 3.0 current
ftInd(62) Indian Foot, 1962 The Imperial Foot modified in India. POSC epicentre 3.0 current
ftInd(75) Indian Foot, 1975 The Imperial Foot modified in India. POSC epicentre 3.0 current
ftGC Gold Coast Foot The foot used in Ghana. POSC epicentre 3.0 current
gon gons Deprecated. Use grads POSC epicentre 3.0 deprecated
gr grad Same as gons POSC epicentre 2.1 current
g gram   POSC epicentre 2.1 current
g.ft/cm3.s gram feet/cubic centimetre second Acoustic impedance - density times velocity POSC epicentre 2.1 current
g/cm3 grams/cubic centimetre   POSC epicentre 2.1 current
g/cm4 grams/centimetre fourth   POSC epicentre 2.1 current
g/dm3 grams/cubic decimetre   POSC epicentre 2.1 current
g/galUK grams/UK gallon   POSC epicentre 2.1 current
g/galUS grams/US gallon   POSC epicentre 2.1 current
g/kg grams/kilogram unitless POSC epicentre 2.1 current
g/L grams/litre Preferred unit is g/dm3 POSC epicentre 2.1 current
g/m3 grams/cubic metre   POSC epicentre 2.1 current
g/s grams/second   POSC epicentre 2.1 current
Ga gigayears   POSC epicentre 2.1 current
Gal galileo Measure of acceleration POSC epicentre 2.1 current
galUK UK gallon   POSC epicentre 2.1 current

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acronym identifier description source version status
galUK/ft3 UK gallons/cubic foot   POSC epicentre 2.1 current
galUK/hr UK gallons/hour   POSC epicentre 2.1 current
galUK/hr2 UK gallons/hour/hour   POSC epicentre 2.1 current
galUK/hr.ft UK gallons/hour foot   POSC epicentre 2.1 current
galUK/hr.ft2 UK gallons/hour square foot   POSC epicentre 2.1 current
galUK/hr.in UK gallons/hour inch   POSC epicentre 2.1 current
galUK/hr.in2 UK gallons/hour square inch   POSC epicentre 2.1 current
galUK/lbm UK gallons/pound mass   POSC epicentre 2.1 current
galUK/Mbbl UK gallons/1000 barrels   POSC epicentre 2.1 current
galUK/mi UK gallons/mile   POSC epicentre 2.1 current
galUK/min UK gallons/minute   POSC epicentre 2.1 current
galUK/min2 UK gallons/minute/minute   POSC epicentre 2.1 current
galUK/min.ft UK gallons/minute foot   POSC epicentre 2.1 current
galUK/min.ft2 UK gallons/minute square foot   POSC epicentre 2.1 current
galUS US gallons   POSC epicentre 2.1 current
galUS/ft US gallons/foot   POSC epicentre 2.1 current
galUS/ft3 US gallons/cubic foot   POSC epicentre 2.1 current
galUS/hr US gallons/hour   POSC epicentre 2.1 current
galUS/hr2 US gallons/hour/hour   POSC epicentre 2.1 current
galUS/hr.ft US gallons/foot hour   POSC epicentre 2.1 current

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acronym identifier description source version status
galUS/hr.ft2 US gallons/hour square foot   POSC epicentre 2.1 current
galUS/hr.in US gallons/hour inch   POSC epicentre 2.1 current
galUS/hr.in2 US gallons/hour square inch   POSC epicentre 2.1 current
galUS/Mscf(60F) US gals/1000 std cubic feet, 60 deg F   POSC epicentre 2.1 current
galUS/lbm US gallons/pound mass   POSC epicentre 2.1 current
galUS/Mbbl US gallons/1000 barrels   POSC epicentre 2.1 current
galUS/mi US gallons/mile   POSC epicentre 2.1 current
galUS/min US gallons/minute   POSC epicentre 2.1 current
galUS/min2 US gallons/minute/minute   POSC epicentre 2.1 current
galUS/min.ft US gallons/minute foot   POSC epicentre 2.1 current
galUS/min.ft2 US gallons/minute square foot   POSC epicentre 2.1 current
galUS/tonUK US gallons/UK ton   POSC epicentre 2.1 current
galUS/tonUS US gallons/US ton   POSC epicentre 2.1 current
gal/sack US gallons/94 lb sack US gallons per API (94 pound) sack of cement. POSC epicentre 2.2 current
gamma gamma measure of magnetic field strength. POSC epicentre 2.1 current
gauss gauss   POSC epicentre 2.1 current
GeV billions of electron volts   POSC epicentre 2.1 current
GPa gigapascal   POSC epicentre 2.1 current
grain grain 1/7000 lbm (avoirdupois) POSC epicentre 2.1 current
grain/ft3 grains/cubic foot   POSC epicentre 2.1 current

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acronym identifier description source version status
grain/ft3(100) grains/100 cubic feet   POSC epicentre 2.1 current
grain/galUS grains/US gallon   POSC epicentre 2.1 current
Gsm3 giga standard cubic metres 15C   POSC epicentre 2.2.1 current
GW gigawatt   POSC epicentre 2.1 current
GW.h gigawatt hour   POSC epicentre 2.1 current
h hour   POSC epicentre 2.1 current
h/ft3 hours/cubic foot   POSC epicentre 2.1 current
ha hectare   POSC epicentre 2.1 current
ha.m hectare metres   POSC epicentre 2.1 current
hhp hydraulic horsepower   POSC epicentre 2.1 current
hp horsepower 550 ft.lbf/s POSC epicentre 2.1 current
ehp electric horsepower   POSC epicentre 2.1 current
hp.hr horsepower hour   POSC epicentre 2.1 current
hp.hr/bbl horsepower hours/barrel   POSC epicentre 2.1 current
hp.hr/lbm horsepower hours/pound mass   POSC epicentre 2.1 current
hp/ft3 horsepower/cubic foot   POSC epicentre 2.1 current
Hz Hertz cycles/second. Often considered a derived SI element. But it is necessary to put it here to relate to rad/s. POSC epicentre 2.1 current
in inch   POSC epicentre 2.1 current
in/in.degF inches/inch degree Fahrenheit   POSC epicentre 2.1 current
in/min inches/minute   POSC epicentre 2.1 current

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acronym identifier description source version status
in/s inches/second   POSC epicentre 2.1 current
in/a inches/year   POSC epicentre 2.1 current
in2 square inches   POSC epicentre 2.1 current
in2/ft2 square inches/square foot unit of tortuosity POSC epicentre 2.1 current
in2/in2 square inches/square inch   POSC epicentre 2.1 current
in2/s square inches/second   POSC epicentre 2.1 current
in3 cubic inches   POSC epicentre 2.1 current
in4 inches to the fourth   POSC epicentre 2.1 current
inH2O(39.2F) inches of water at 39.2 deg F 39.2 degF = 4 degC = temperature for the maximum density of water POSC epicentre 2.1 current
inH2O(60F) inches of water at 60 deg F 60 degF is close to metric value of 15 degC POSC epicentre 2.1 current
inHg(32F) inches of mercury at 32 deg F   POSC epicentre 2.1 current
inHg(60F) inches of mercury at 60 deg F   POSC epicentre 2.1 current
J/cm2 joules/square centimetre   POSC epicentre 2.1 current
J/dm3 joules/cubic decimetre   POSC epicentre 2.1 current
J/g joules/gram   POSC epicentre 2.1 current
J/g.K joules/gram degree Kelvin   POSC epicentre 2.1 current
J/m joules/metre   POSC epicentre 2.1 current
J/m2 joules/square metre   POSC epicentre 2.1 current
J/s.m2.degC joules/second square metre deg C   POSC epicentre 2.1 current
K.m2/kW degrees Kelvin square metres/kilowatt   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
kbyte kilobyte 1024 bytes POSC epicentre 2.1 current
kC kilocoulombs   POSC epicentre 2.1 current
kcal kilocalories   POSC epicentre 2.1 current
kcal.m/cm2 kilocalorie metres/square centimetre   POSC epicentre 2.1 current
kcal/cm3 kilocalories/cubic centimetre   POSC epicentre 2.1 current
kcal/g kilocalories/gram   POSC epicentre 2.1 current
kcal/h kilocalories/hour   POSC epicentre 2.1 current
kcal/h.m.degC kilocalories/hour metre degree Celsius   POSC epicentre 2.1 current
kcal/h.m2.degC kilocalorie/hour square metre deg C   POSC epicentre 2.1 current
kcal/kg kilocalories/kilogram   POSC epicentre 2.1 current
kcal/kg.degC kilocalories/kilogram degree Celsius   POSC epicentre 2.1 current
kcal/m3 kilocalroies/cubic metre   POSC epicentre 2.1 current
kcal/mol(g) kilocalories/mole (gram)   POSC epicentre 2.1 current
keV kiloelectron volts   POSC epicentre 2.1 current
kg/dm3 kilograms/cubic decimetre   POSC epicentre 2.1 current
kg.m/cm2 kilogram metres/square centimetre   POSC epicentre 2.1 current
kg/dm4 kilograms/decimetre fourth   POSC epicentre 2.1 current
kg/h kilograms/hour   POSC epicentre 2.1 current
kg/kg kilograms/kilogram unitless POSC epicentre 2.1 current
kg/kW.h kilograms/kilowatt hour   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
kg/MJ kilograms/megajoule   POSC epicentre 2.1 current
kgf kilogram force   POSC epicentre 2.1 current
kgf.m kilogram force metres   POSC epicentre 2.1 current
kgf.m2 kilogram force metres squared   POSC epicentre 2.1 current
kgf.m/cm2 kilogram force metres/square centimetre   POSC epicentre 2.1 current
kgf.m/m kilograms force metres/metre   POSC epicentre 2.1 current
kgf.s/m2 kilograms force seconds/square metre   POSC epicentre 2.1 current
kgf/cm kilograms force/centimetre   POSC epicentre 2.1 current
kgf/mm2 kilogram force/square millimetre   POSC epicentre 2.1 current
kHz kilohertz   POSC epicentre 2.1 current
kJ kilojoules   POSC epicentre 2.1 current
kJ.m/h.m2.K kilojoule metres/hour sq metre deg K   POSC epicentre 2.1 current
kJ/dm3 kilojoules/cubic decimetre   POSC epicentre 2.1 current
kJ/h.m2.K kilojoules/hour square metre deg K   POSC epicentre 2.1 current
kJ/kg kilojoule/kilogram   POSC epicentre 2.1 current
kJ/kg.K kilojoules/kilogram degree Kelvin   POSC epicentre 2.1 current
kJ/m3 kilojoule/cubic metre   POSC epicentre 2.1 current
kJ/mol(kg) kilojoule/mole (kilogram)   POSC epicentre 2.1 current
kJ/mol(kg).K kilojoules/mole (kilogram) deg K   POSC epicentre 2.1 current
km kilometre   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
km/cm kilometre/ centimetre   POSC epicentre 2.1 current
km/dm3 kilometres/cubic decimetre   POSC epicentre 2.1 current
km/h kilometres/hour   POSC epicentre 2.1 current
km/L kilometres/litre   POSC epicentre 2.1 current
km2 square kilometres   POSC epicentre 2.1 current
km3 cubic kilometres   POSC epicentre 2.1 current
kN kilonewtons   POSC epicentre 2.1 current
kN.m kilonewton metres   POSC epicentre 2.1 current
kN.m2 kilonewton metres squared   POSC epicentre 2.1 current
kN/m kilonewtons/metre   POSC epicentre 2.1 current
knot knots nautical miles per hour POSC epicentre 2.1 current
kPa kilopascals   POSC epicentre 2.1 current
kPa.s/m kilopascal seconds/metre   POSC epicentre 2.1 current
kPa/m kilopascals/metre   POSC epicentre 2.1 current
ksm3 kilo standard cubic metres 15C   POSC epicentre 2.2.1 current
ksm3/d thousand std cubic metres/ day   POSC epicentre 2.2.1 current
ksm3/sm3 1000 std cubic metres/ std cubic metre   POSC epicentre 2.1 current
kV kilovolt   POSC epicentre 2.1 current
kW kilowatts   POSC epicentre 2.1 current
kW.h kilowatt hours   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
kW.h/dm3 kilowatt hours/decimetre   POSC epicentre 2.1 current
kW.h/kg kilowatt hours/kilogram   POSC epicentre 2.1 current
kW.h/kg.degC kilowatt hours/kilogram degree C   POSC epicentre 2.1 current
kW.h/m3 kilowatt hours/cubic metres   POSC epicentre 2.1 current
kW/m2 kilowatts/square metre   POSC epicentre 2.1 current
kW/m2.K kilowatts/square metre degree Kelvin   POSC epicentre 2.1 current
kW/m3 kilowatts/cubic metre   POSC epicentre 2.1 current
kW/m3.K killowatts/cubic metre degree Kelvin   POSC epicentre 2.1 current
L litre same as preferred symbol dm3 POSC epicentre 2.1 current
L/km(100) litres/100 kilometres   POSC epicentre 2.1 current
L/m litres/metre   POSC epicentre 2.1 current
L/m3 litres/cubic metre unitless POSC epicentre 2.1 current
L/mol(g) litres/mole (gram)   POSC epicentre 2.1 current
L/mol(kg) litres/mole (kilogram)   POSC epicentre 2.1 current
L/s litres/second   POSC epicentre 2.1 current
L/s2 litres/second/second   POSC epicentre 2.1 current
L/t litres/tonne   POSC epicentre 2.1 current
lbf pounds force   POSC epicentre 2.1 current
lbf.ft foot pounds force   POSC epicentre 2.1 current
lbf.ft/bbl foot pounds force/barrel   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
lbf.ft/in pounds force feet/inch   POSC epicentre 2.1 current
lbf.ft/in2 foot pounds force/square inch   POSC epicentre 2.1 current
lbf.ft/lbm foot pounds force/pound mass   POSC epicentre 2.1 current
lbf.in inch pounds force   POSC epicentre 2.1 current
lbf.in2 pounds force inches squared   POSC epicentre 2.1 current
lbf.in/in pounds force inches/inch   POSC epicentre 2.1 current
lbf/in pounds force/inch   POSC epicentre 2.1 current
lbf.s/ft2 pounds force seconds/square foot   POSC epicentre 2.1 current
lbf.s/in2 pounds force seconds/square inch   POSC epicentre 2.1 current
lbf/ft2 pounds force/square foot   POSC epicentre 2.1 current
lbf/ft2(100) pounds force/100 square foot   POSC epicentre 2.1 current
lbf/ft3 pounds force/cubic foot   POSC epicentre 2.1 current
lbf/in2 pounds force/square inch   POSC epicentre 2.1 current
lbf/galUS pounds force/US gallon   POSC epicentre 2.1 current
lbm pounds mass   POSC epicentre 2.1 current
lbm(million)/yr million pounds mass/year   POSC epicentre 2.1 current
lbm.ft/s foot pounds mass/second   POSC epicentre 2.1 current
lbm.ft2 pounds mass square feet   POSC epicentre 2.1 current
lbm.ft2/s2 pounds mass square feet/second squared same quantity as foot pounds force POSC epicentre 2.1 current
lbm/s.ft2 pounds mass/second square foot   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
lbm/bbl pounds mass/barrel   POSC epicentre 2.1 current
lbm/ft pounds mass/foot   POSC epicentre 2.1 current
lbm/ft.h pounds mass/foot hour   POSC epicentre 2.1 current
lbm/ft.s pounds mass/foot second   POSC epicentre 2.1 current
lbm/ft2 pounds mass/square foot   POSC epicentre 2.1 current
lbm/ft3 pounds mass/cubic foot   POSC epicentre 2.1 current
lbm/ft4 pounds mass/foot fourth   POSC epicentre 2.1 current
lbm/galUK pounds mass/UK gallon   POSC epicentre 2.1 current
lbm/galUK(1000) pounds mass/1000 UK gallons   POSC epicentre 2.1 current
lbm/galUK.ft pounds mass/UK gallon foot   POSC epicentre 2.1 current
lbm/galUS pounds mass/US gallon   POSC epicentre 2.1 current
lbm/galUS(1000) pounds mass/1000 US gallons   POSC epicentre 2.1 current
lbm/galUS.ft pounds mass/US gallon foot   POSC epicentre 2.1 current
lbm/hp.h pounds mass/horsepower hour   POSC epicentre 2.1 current
lbm/h pounds mass/hour   POSC epicentre 2.1 current
lbm/h.ft pounds mass/hour foot   POSC epicentre 2.1 current
lbm/h.ft2 pounds mass/hour square foot   POSC epicentre 2.1 current
lbm/Mbbl pounds mass/1000 barrels   POSC epicentre 2.1 current
lbm/min pounds mass/minute   POSC epicentre 2.1 current
lbm/s pounds mass/second   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
lbm/s.ft pounds mass/second foot   POSC epicentre 2.1 current
lkSe Sears link 1/100 of a chain. POSC epicentre 2.1 current
lkUS US Survey link 1/100 of a US Survey chain POSC epicentre 3.0 current
lkBnA British link 1895 A 1/100 of a British Chain, 1895 A. POSC epicentre 3.0 current
lkBnB British link 1895 B 1/100 of a British chain, 1895 B POSC epicentre 3.0 current
lkCla Clarke link   POSC epicentre 2.1 current
lm/m2 lumens/square metre   POSC epicentre 2.1 current
mGer German legal metre Used in Namibia POSC epicentre 2.2 current
m/cm metres/ centimetre   POSC epicentre 2.1 current
m/d metres/day   POSC epicentre 2.1 current
m/h metres/hour   POSC epicentre 2.2.2 current
m/km metres/kilometre unitless POSC epicentre 2.1 current
m/m metres/metre   POSC epicentre 2.1 current
m/m.K metres/metre Kelvin   POSC epicentre 2.1 current
m/m3 metres/cubic metre   POSC epicentre 2.1 current
m/ms metres/millisecond   POSC epicentre 2.1 current
m2/cm3 square metres/cubic centimetre   POSC epicentre 2.1 current
m2/d.kPa square metres/day kiloPascal   POSC epicentre 2.1 current
m2/g square metres/gram   POSC epicentre 2.1 current
m2/h square metres/hour   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
m2/m2 square metres/square metre   POSC epicentre 2.1 current
m2/m3 square metres/cubic metre   POSC epicentre 2.1 current
m3(std,0C) cubic metres at std condition (0 deg C)   POSC epicentre 2.1 current
m3(std,15C) cubic metres at std condition (15 deg C)   POSC epicentre 2.1 current
m3/cP.Pa.s cubic metres/centiPoise Pascal second   POSC epicentre 2.1 current
m3/cP.d.kPa cubic metres/centiPoise day kiloPascal   POSC epicentre 2.1 current
m3/d cubic metres/day   POSC epicentre 2.1 current
m3/d2 cubic metres/day/day   POSC epicentre 2.1 current
m3/d.kPa cubic metres/day kilopascal   POSC epicentre 2.1 current
m3/g cubic metres/gram   POSC epicentre 2.1 current
m3/h cubic metres/hour   POSC epicentre 2.1 current
m3/ha.m cubic metres/hectare metre unitless POSC epicentre 2.1 current
m3/km cubic metres/kilometre   POSC epicentre 2.1 current
m3/kW.h cubic metres/kilowatt hour   POSC epicentre 2.1 current
m3/m cubic metres/metre   POSC epicentre 2.1 current
m3/m3 cubic metres/cubic metre unitless POSC epicentre 2.1 current
m3/mol(kg) cubic metres/mole (kilogram)   POSC epicentre 2.1 current
m3/s.m cubic metres/second metre   POSC epicentre 2.1 current
m3/s.m2 cubic metres/second square metre   POSC epicentre 2.1 current
m3/t cubic metres/tonne   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
mA milliamp   POSC epicentre 2.1 current
Ma megayears   POSC epicentre 2.1 current
Mbbl thousand barrels   POSC epicentre 2.1 current
Mbbl/d thousand barrels/day   POSC epicentre 2.1 current
Mbbl.ft/d thousand barrel feet/day   POSC epicentre 2.1 current
Mbyte megabyte 1024 kilobytes POSC epicentre 2.1 current
mC millicoulomb   POSC epicentre 2.1 current
mC/m2 millicoulombs/square metre   POSC epicentre 2.1 current
mD millidarcies   POSC epicentre 2.1 current
mD.ft millidarcy foot   POSC epicentre 2.1 current
mD.ft2/lbf.s millidarcy sq feet/pound force second   POSC epicentre 2.1 current
mD.in2/lbf.s millidarcy sq inches/pound force second   POSC epicentre 2.1 current
mD.m millidarcy metres   POSC epicentre 2.1 current
mD/cP millidarcies/centipoise   POSC epicentre 2.1 current
mD/Pa.s millidarcies/Pascal second   POSC epicentre 2.1 current
mEuc milliEuclid per mil or per thousand POSC epicentre 2.1 current
meq milliequivalent   POSC epicentre 2.2.2 current
meq/g milliequivalents/ gram   POSC epicentre 2.2.2 current
meq/hg milliequivalents/ hectogram   POSC epicentre 2.2.2 current
meq/cm3 milliequivalents/ cubic centimeter   POSC epicentre 2.2.2 current

ref_customary_unit_of_measure

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acronym identifier description source version status
MeV millions of electron volts   POSC epicentre 2.1 current
Mflops megaflops 1048576 flops POSC epicentre 2.1 current
Mg megagram also a tonne POSC epicentre 2.1 current
mg milligram   POSC epicentre 2.1 current
Mg/a megagrams/year   POSC epicentre 2.1 current
Mg/d megagrams/day   POSC epicentre 2.1 current
mg/dm3 milligrams/cubic decimetre   POSC epicentre 2.1 current
mg/galUS milligrams/US gallon   POSC epicentre 2.1 current
Mg/h megagrams/hour   POSC epicentre 2.1 current
mg/J milligrams/joule   POSC epicentre 2.1 current
mg/kg milligrams/kilogram   POSC epicentre 2.1 current
Mg/m2 megagrams/square metre   POSC epicentre 2.1 current
mg/m3 milligrams/cubic metre   POSC epicentre 2.1 current
mGal milligal   POSC epicentre 2.1 current
mH millihenries   POSC epicentre 2.1 current
MHz megahertz   POSC epicentre 2.1 current
mho mhos preferred symbol is S (siemens) POSC epicentre 2.1 current
mho/m mhos/metre   POSC epicentre 2.1 current
mil mil 1/1000 of an inch POSC epicentre 2.1 current
mila mil_6400 Angle subtended by 1/6400 part of a circle. Approximates to 1/1000 of a radian. POSC epicentre 3.0 current

ref_customary_unit_of_measure

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acronym identifier description source version status
mil/yr mils/year   POSC epicentre 2.1 current
mi mile statute mile = 5280 international feet POSC epicentre 2.1 current
miUS U.S. Survey mile 5280 US Survey feet POSC epicentre 2.1 current
mi2 square miles   POSC epicentre 2.1 current
miUS2 U.S. Survey square mile equivalent to a section POSC epicentre 2.1 current
mi/galUK miles/UK gallon   POSC epicentre 2.1 current
mi/galUS miles/US gallon   POSC epicentre 2.1 current
mi/h miles/hour   POSC epicentre 2.1 current
mi/in miles/inch   POSC epicentre 2.1 current
min minutes   POSC epicentre 2.1 current
mina minutes angular   POSC epicentre 2.1 current
MJ megajoules   POSC epicentre 2.1 current
MJ/a megajoules/year   POSC epicentre 2.1 current
mJ/cm2 millijoules/square centimetre   POSC epicentre 2.1 current
MJ/kg megajoules/kilogram   POSC epicentre 2.1 current
MJ/m megajoules/metre   POSC epicentre 2.1 current
mJ/m2 millijoules/square metre   POSC epicentre 2.1 current
MJ/m3 megajoules/cubic metre   POSC epicentre 2.1 current
MJ/mol(kg) megajoules/mole (kilogram)   POSC epicentre 2.1 current
mK/m millidegrees Kelvin/metre   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
mL millilitre a cubic centimetre POSC epicentre 2.1 current
mL/galUK millilitres/UK gallon unitless POSC epicentre 2.1 current
mL/galUS millilitres/US gallon unitless POSC epicentre 2.1 current
mm millimetres   POSC epicentre 2.1 current
mm/a millimetres/year   POSC epicentre 2.1 current
mm/mm.K millimetres/millimetre degree Kelvin   POSC epicentre 2.1 current
mm/s millimetres/second   POSC epicentre 2.1 current
mm2 square millimetres   POSC epicentre 2.1 current
mm2/mm2 square millimetres/square millimetre a unit of tortuosity POSC epicentre 2.1 current
mm2/s square millimetres/second   POSC epicentre 2.1 current
mm3 cubic millimetres   POSC epicentre 2.1 current
mm3/J cubic millimetres/joule   POSC epicentre 2.1 current
MMbbl million barrels   POSC epicentre 2.1 current
MMbbl/acre.ft million barrels/acre foot   POSC epicentre 2.1 current
mmHg(0C) millimetres of Mercury at 0 deg C   POSC epicentre 2.1 current
mmho/m millimhos/metre   POSC epicentre 2.1 current
mN millinewtons   POSC epicentre 2.1 current
mN.m2 millinewton metres squared   POSC epicentre 2.1 current
mN/m millinewtons/metre   POSC epicentre 2.1 current
mN/km millinewtons/kilometre   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
mohm milliohm   POSC epicentre 2.1 current
mol(g) mole (gram)   POSC epicentre 2.1 current
mol(kg) mole (kilogram) same as mol POSC epicentre 2.1 current
mol(kg)/h moles (kilogram)/hour   POSC epicentre 2.1 current
mol(kg)/m3 moles (kilogram)/cubic metre   POSC epicentre 2.1 current
mol(kg)/s moles (kilogram)/second   POSC epicentre 2.1 current
mol(lbm) moles (pounds mass)   POSC epicentre 2.1 current
mol(lbm)/ft3 moles (pounds mass)/cubic foot   POSC epicentre 2.1 current
mol(lbm)/galUK moles (pounds mass)/UK gallon   POSC epicentre 2.1 current
mol(lbm)/galUS moles (pounds mass)/US gallon   POSC epicentre 2.1 current
mol(lbm)/h moles (pounds mass)/hour   POSC epicentre 2.1 current
mol(lbm)/s moles (pounds mass)/second   POSC epicentre 2.1 current
mol(lbm)/s.ft2 moles (pounds mass)/second square foot   POSC epicentre 2.1 current
mol(lbm)/h.ft2 moles (pounds mass)/hour square foot   POSC epicentre 2.1 current
MPa megapascals   POSC epicentre 2.1 current
Mpsi mega pounds per square inch assumed to be psia POSC epicentre 2.1 current
ms milliseconds   POSC epicentre 2.1 current
mS millisiemen   POSC epicentre 2.1 current
mS/m millisiemens/metre   POSC epicentre 2.1 current
ms/s milliseconds/second unitless POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
ms/in milliseconds/inch   POSC epicentre 2.1 current
ms/cm milliseconds/centimetre   POSC epicentre 2.1 current
Msm3 mega standard cubic metres 15C   POSC epicentre 2.2.1 current
mT milliteslas   POSC epicentre 2.1 current
mV millivolts   POSC epicentre 2.1 current
mW milliwatt   POSC epicentre 2.1 current
MW megawatts   POSC epicentre 2.1 current
MW.h megawatt hours   POSC epicentre 2.1 current
MW.h/kg megawatt hours/kilogram   POSC epicentre 2.1 current
MW.h/m3 megawatt hours/cubic metre   POSC epicentre 2.1 current
mW/m2 milliwatts/square metres   POSC epicentre 2.1 current
mWb milliwebers   POSC epicentre 2.1 current
MY megayears   POSC epicentre 2.1 current
N/mm2 newtons/square millimetre   POSC epicentre 2.1 current
nautmi nautical mile   POSC epicentre 2.1 current
nC nanocoulomb   POSC epicentre 2.1 current
nEuc nanoeuclid parts per billion POSC epicentre 2.1 current
nm nanometres   POSC epicentre 2.1 current
ns nanoseconds   POSC epicentre 2.1 current
ns/m nanoseconds/metre   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
ns/ft nanoseconds/foot   POSC epicentre 2.1 current
nW nanowatts   POSC epicentre 2.1 current
N/m2 newtons/square metre   POSC epicentre 2.1 current
N.m newton metre   POSC epicentre 2.1 current
N.m/m newton metres/metre   POSC epicentre 2.1 current
N.s/m2 newton seconds/metre squared   POSC epicentre 2.1 current
(N/m)4/kg.m3 newton/metre fourth/kilogram metre cubed   POSC epicentre 2.1 current
Oe oersted 100000 gamma POSC epicentre 2.1 current
ohm.cm ohm centimetres   POSC epicentre 2.1 current
oz(av) avoirdupois ounces   POSC epicentre 2.1 current
oz(troy) troy ounces   POSC epicentre 2.1 current
P poise   POSC epicentre 2.1 current
Pa(g) pascal gauge pascal - 1 atm. POSC epicentre 2.1 current
Pa.s2/m3 pascal seconds squared/ cubic metre   POSC epicentre 2.2 current
pC picocoulomb   POSC epicentre 2.1 current
pdl poundals   POSC epicentre 2.1 current
pdl.cm2 poundal centimetre squared   POSC epicentre 2.1 current
pdl.ft foot poundal   POSC epicentre 2.1 current
pdl/cm poundals/centimetre   POSC epicentre 2.1 current
permil per mille same as parts per thousand, milliEuclid POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
ppk parts per thousand   POSC epicentre 2.1 current
ppm parts per million   POSC epicentre 2.1 current
pPa picopascal   POSC epicentre 2.1 current
psf pounds/square foot preferred is lbf/ft2 POSC epicentre 2.1 current
psi pounds/square inch preferred is lbf/in2 POSC epicentre 2.1 current
psi.d/bbl pounds per square inch days/barrel   POSC epicentre 2.1 current
psi/ft pounds/square inch per foot   POSC epicentre 2.1 current
psi/ft(100) pounds/square inch per 100 feet   POSC epicentre 2.1 current
psia pounds/square inch absolute   POSC epicentre 2.1 current
psig pounds/square inch gauge psia - 1atm. POSC epicentre 2.1 current
psi2/cP pounds/square inch squared/ centipoise   POSC epicentre 2.1 current
psi2.d/cp.ft3 psi squared days/ centipoise cubic foot   POSC epicentre 2.2 current
psi2.d2/cp.ft6 (psi days/cubic foot)squared/centipoise   POSC epicentre 2.2 current
ptUK/hp.hr UK pints/horsepower hour   POSC epicentre 2.1 current
ptUK/Mbbl UK pints/1000 barrels   POSC epicentre 2.1 current
ptUS US pints   POSC epicentre 2.1 current
qtUK UK quarts   POSC epicentre 2.1 current
qtUS US quarts   POSC epicentre 2.1 current
quad quads energy or work POSC epicentre 2.1 current
quad/yr quads/year   POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
rd rad radiation dose absorbed POSC epicentre 2.1 current
rev/min revolutions/minute   POSC epicentre 2.1 current
rev/s revolutions/second   POSC epicentre 2.1 current
rpm revolutions/minute   POSC epicentre 2.1 current
rpm/s revolutions/minute per second   POSC epicentre 2.1 current
s/cm seconds/centimetre   POSC epicentre 2.1 current
s/ft seconds/foot   POSC epicentre 2.1 current
s/in seconds/inch   POSC epicentre 2.1 current
sack94 sacks A API sack (of cement) weighing 94 lbs, and having a volume of 1 cubic foot. POSC epicentre 2.2 current
sm3/sm3 std cubic metres/ std cubic metres   POSC epicentre 2.2.1 current
sm3/ksm3 std cubic metres/ 1000 std cubic metre   POSC epicentre 2.2.1 current
scf(60F) std cubic feet at 60 deg F 60 degrees F is almost 15 degrees C POSC epicentre 2.1 current
Mscf(60F) thousand cubic feet at 60 deg F   POSC epicentre 2.1 current
Mcf thousand cubic feet not at standard conditions POSC epicentre 2.1 current
MMcf million cubic feet not at standard conditions POSC epicentre 2.1 current
bcf billion cubic feet not at standard conditions POSC epicentre 2.1 current
tcf trillion cubic feet not at standard conditions POSC epicentre 2.1 current
MMscf(60F) million standard cubic feet at 60 deg F   POSC epicentre 2.1 current
scm(15C)/d std cubic metres at 15 deg C/day   POSC epicentre 2.1 current
scm15/stb60 std cubic metres / stock tank barrel scm at 15 degC, stb at 60 deg F POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
Mscm(15C)/d thousand std cubic metres, 15 degC/day deprecated. Use ksm3/d POSC epicentre 2.2.1 deprecated
MMscm(15C)/d million std cubic metres, 15 degC/day   POSC epicentre 2.1 current
scf(60F)/ft2 std cubic feet at 60 deg F/square foot   POSC epicentre 2.1 current
scf(60F)/ft3 std cubic feet at 60 deg Ft/cubic foot   POSC epicentre 2.1 current
scf(60F)/bbl std cubic feet at 60 deg F/barrel   POSC epicentre 2.1 current
Mscf60/stb60 thousand std cu ft/ stock tank barrel measured at 60 deg F POSC epicentre 2.1 current
MMscf60/stb60 million std cu ft/ stock tank barrel measured at 60 deg F POSC epicentre 2.1 current
scf(60F)/d standard cubic feet/day   POSC epicentre 2.1 current
Mscf(60F)/d thousand standard cubic feet/day   POSC epicentre 2.1 current
MMscf(60F)/d million standard cubic feet/day   POSC epicentre 2.1 current
stb(60F) stock tank barrel at 60 deg F   POSC epicentre 2.1 current
Mstb(60F) thousand stock tank barrels 60 F   POSC epicentre 2.1 current
MMstb(60F) million stock tank barrels 60 deg F   POSC epicentre 2.1 current
stb(60F)/acre stock tank barrels, 60 deg F/acre   POSC epicentre 2.1 current
MMstb/acre million stock tank barrels 60 deg F/acre   POSC epicentre 2.1 current
stb(60F)/bbl stock tank barrels, 60 deg F/barrel   POSC epicentre 2.1 current
stb60/scm15 stock tank barrels/ std cu metres stb at 60 deg F, scm at 15 deg C POSC epicentre 2.1 current
stb60/Mscm15 stock tank barrels/ 1000 std cu metres stb at 60 deg F, scm at 15 deg C POSC epicentre 2.1 current
stb60/MMscm15 stock tank barrels/ million std cu mts stb at 60 deg F, scm at 15 deg C POSC epicentre 2.1 current
stb60/Mscf60 stock tank barrels/ 1000 std cu ft measured at 60 deg F POSC epicentre 2.1 current

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acronym identifier description source version status
stb60/MMscf60 stock tank barrels/ million std cu ft measured at 60 deg F POSC epicentre 2.1 current
stb(60F)/d stock tank barrels, 60 deg F/day   POSC epicentre 2.1 current
Mstb(60F)/d thousand stock tank barrels,60 deg F/day   POSC epicentre 2.1 current
MMstb(60F)/d million stock tank barrels, 60 deg F/day   POSC epicentre 2.1 current
MMstb/acre.ft million stbs, 60 deg F/acre foot   POSC epicentre 2.1 current
bbl/stb(60F) barrels/stock tank barrel, 60 deg F   POSC epicentre 2.1 current
acre.ft/MMstb acre feet/million stbs, 60 deg F   POSC epicentre 2.1 current
seca seconds angular   POSC epicentre 2.1 current
section section U.S. Statutory square mile POSC epicentre 2.1 current
sigma capture unit same as cu POSC epicentre 2.1 current
sq ft square feet preferred is ft2 POSC epicentre 3.0 deprecated
sq in square inches preferred is in2 POSC epicentre 3.0 deprecated
sq mi square miles preferred is mi2 POSC epicentre 3.0 deprecated
sq yd square yards preferred is yd2 POSC epicentre 3.0 deprecated
t tonne 1000 kilograms, or Mg = million grams POSC epicentre 2.1 current
t/a tonnes/year   POSC epicentre 2.1 current
t/d tonnes/day   POSC epicentre 2.1 current
t/h tonnes/hour   POSC epicentre 2.1 current
talbot talbot lumen. second POSC epicentre 2.1 current
therm therms   POSC epicentre 2.1 current

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acronym identifier description source version status
therm/ft3 therms/cubic foot   POSC epicentre 2.1 current
therm/galUK therms/UK gallon   POSC epicentre 2.1 current
therm/lbm therms/pound mass   POSC epicentre 2.1 current
TJ terajoules   POSC epicentre 2.1 current
TJ/a terajoules/year   POSC epicentre 2.1 current
ton of refrig tons of refrigeration   POSC epicentre 2.1 current
tonfUK UK tons force   POSC epicentre 2.1 current
tonfUK.ft2 UK ton feet squared   POSC epicentre 2.1 current
tonfUK/ft UK tons force/foot   POSC epicentre 2.1 current
tonfUS US tons force   POSC epicentre 2.1 current
tonfUS.ft US tons force feet   POSC epicentre 2.1 current
tonfUS.ft2 US tons force feet squared   POSC epicentre 2.1 current
tonfUS.mi US tons force/mile   POSC epicentre 2.1 current
tonfUS.mi/bbl US ton force miles/barrel   POSC epicentre 2.1 current
tonfUS.mi/ft US tons force miles/foot   POSC epicentre 2.1 current
tonfUS/ft US tons force/foot   POSC epicentre 2.1 current
tonfUS/ft2 US tons force/square foot   POSC epicentre 2.1 current
tonfUS/in2 US tons force/square inch   POSC epicentre 2.1 current
tonUK UK tons long ton. different than a tonne POSC epicentre 2.1 current
tonUK/d UK tons/day   POSC epicentre 2.1 current

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acronym identifier description source version status
tonUK/h UK tons/hour   POSC epicentre 2.1 current
tonUK/min UK tons/minute   POSC epicentre 2.1 current
tonUK/a UK tons/year   POSC epicentre 2.1 current
tonUS US tons also called a short ton POSC epicentre 2.1 current
tonUS/d US tons/day   POSC epicentre 2.1 current
tonUS/ft2 US tons/square foot   POSC epicentre 2.1 current
tonUS/h US tons/hour   POSC epicentre 2.1 current
tonUS/min US tons/minute   POSC epicentre 2.1 current
tonUS/a US tons/year   POSC epicentre 2.1 current
torr torr   POSC epicentre 2.1 current
TW terawatts   POSC epicentre 2.1 current
TW.h terrawatt hours   POSC epicentre 2.1 current
ubar microbars   POSC epicentre 2.1 current
uA microampere   POSC epicentre 2.1 current
uC microcoulomb   POSC epicentre 2.1 current
ucal/s.cm2 microcalories/second square centimetre   POSC epicentre 2.1 current
uEuc microEuclids parts per million POSC epicentre 2.1 current
uF microfarads   POSC epicentre 2.1 current
uF/m microfarads/metre   POSC epicentre 2.1 current
ug micrograms   POSC epicentre 2.1 current

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acronym identifier description source version status
ug/cm3 micrograms/cubic centimetre   POSC epicentre 2.1 current
uH/m microhenries/metre   POSC epicentre 2.1 current
um microns a micron is a micrometre. micron is the customary term. POSC epicentre 2.1 current
um2 square microns   POSC epicentre 2.1 current
um2.m square micron metres   POSC epicentre 2.1 current
umHg(0C) microns of Mercury at 0 deg C   POSC epicentre 2.1 current
unitless unitless   POSC epicentre 2.1 current
uohm microohm   POSC epicentre 2.1 current
uPa micropascal   POSC epicentre 2.1 current
urad microradian   POSC epicentre 2.2 current
us microsecond   POSC epicentre 2.1 current
us/ft microseconds/foot   POSC epicentre 2.1 current
us/m microseconds/metre   POSC epicentre 2.1 current
uV microvolts   POSC epicentre 2.1 current
uW/m3 microwatts/cubic metre   POSC epicentre 2.1 current
V/dB volts/decibel   POSC epicentre 2.1 current
volpercent volume percent unitless POSC epicentre 2.1 current
volppm volume parts per million unitless POSC epicentre 2.1 current
W/cm2 watts/square centimetre   POSC epicentre 2.1 current
W/W watts/watt unitless POSC epicentre 2.1 current

ref_customary_unit_of_measure

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acronym identifier description source version status
W/kW watts/kilowatt unitless POSC epicentre 2.1 current
Wb/mm webers/millimetre   POSC epicentre 2.1 current
wk weeks   POSC epicentre 2.1 current
wtpercent weight percent unitless POSC epicentre 2.1 current
wtppm weight parts per million unitless POSC epicentre 2.1 current
yd yards   POSC epicentre 2.1 current
ydIm imperial yard Deprecated. Use ydCla POSC epicentre 3.0 deprecated
ydInd Indian yard   POSC epicentre 2.1 current
ydInd(37) Indian yard (1937)   POSC epicentre 3.0 current
ydInd(62) Indian yard (1962)   POSC epicentre 3.0 current
ydInd(75) Indian yard (1975)   POSC epicentre 3.0 current
ydSe Sears yard   POSC epicentre 2.1 current
ydCla Clarkes yard Also known as an Imperial yard. POSC epicentre 3.0 current
ydBnA Benoits yard (1895 A)   POSC epicentre 3.0 current
ydBnB Benoits yard (1895 B)   POSC epicentre 3.0 current
yd2 square yards   POSC epicentre 2.1 current
yr(100k) 100000 years   POSC epicentre 2.1 current

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