[Code of Federal Regulations]

[Title 40, Volume 8]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR61.03]



[Page 10-11]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 61_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS--Table 

of Contents

 

                      Subpart A_General Provisions

 

Sec.  61.03  Units and abbreviations.



    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=ampere

g=gram

Hz=hertz

J=joule

K=degree Kelvin

kg=kilogram

m=meter

m\2\=square meter

m\3\=cubic meter

mg=milligram=10-3gram

mm=millimeter=10-3meter

Mg=megagram=10\6\gram

mol=mole

N=newton

ng=nanogram=10-9gram

nm=nanometer=10-9meter

Pa=pascal

s=second

V=volt

W=watt

[Omega]=ohm

[micro]g=microgram=10-6gram



    (b) Other units of measure:



[deg]C=degree Celsius (centigrade)

cfm=cubic feet per minute

cc=cubic centimeter

Ci=curie

d=day

[deg]F=degree Fahrenheit

ft\2\=square feet

ft\3\=cubic feet

gal=gallon

in=inch

in Hg=inches of mercury

in H2O=inches of water

l=liter

lb=pound

lpm=liter per minute

min=minute

ml=milliliter=10-3liter

mrem=millirem=10-3 rem

oz=ounces

pCi=picocurie=10-12 curie

psig=pounds per square inch gage

[deg]R=degree Rankine

[micro]l=microliter=10-6liter

v/v=volume per volume

yd\2\=square yards

yr=year



    (c) Chemical nomenclature:



Be=beryllium

Hg=mercury

H2O=water



    (d) Miscellaneous:



act=actual



[[Page 11]]



avg=average

I.D.=inside diameter

M=molar

N=normal

O.D.=outside diameter

%=percent

std=standard



[42 FR 51574, Sept. 29, 1977, as amended at 54 FR 51704, Dec. 15, 1989]