Used in this part are abbreviations and symbols of units of measure. These are defined as follows:
(a) System International (SI) units of measure: A=ampereg=gramHz=hertzJ=jouleK=degree Kelvinkg=kilogramm=meterm\2\=square meterm\3\=cubic metermg=milligram=10-3grammm=millimeter=10-3meterMg=megagram=10\6\grammol=moleN=newtonng=nanogram=10-9gramnm=nanometer=10-9meterPa=pascals=secondV=voltW=watt[Omega]=ohmg=microgram=10-6gram
(b) Other units of measure: C=degree Celsius (centigrade)cfm=cubic feet per minutecc=cubic centimeterCi=curied=dayF=degree Fahrenheitft\2\=square feetft\3\=cubic feetgal=gallonin=inchin Hg=inches of mercuryin H2O=inches of waterl=literlb=poundlpm=liter per minutemin=minuteml=milliliter=10-3liter mrem=millirem=10-3 remoz=ouncespCi=picocurie=10-12 curiepsig=pounds per square inch gageR=degree Rankinel=microliter=10-6literv/v=volume per volumeyd\2\=square yardsyr=year
(c) Chemical nomenclature: Be=berylliumHg=mercuryH2O=water
(d) Miscellaneous: act=actualavg=averageI.D.=inside diameterM=molarN=normalO.D.=outside diameter%=percentstd=standard [42 FR 51574, Sept. 29, 1977, as amended at 54 FR 51704, Dec. 15, 1989]