[Code of Federal Regulations]

[Title 40, Volume 6]

[Revised as of July 1, 2005]

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

[CITE: 40CFR60.3]



[Page 25-26]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 60_STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Table of 

Contents

 

                      Subpart A_General Provisions

 

Sec. 60.3  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 3--cubic meter

mg--milligram--10 -3 gram

mm--millimeter--10 -3 meter

Mg--megagram--10 6 gram

mol--mole

N--newton



[[Page 26]]



ng--nanogram--10 -9 gram

nm--nanometer--10 -9 meter

Pa--pascal

s--second

V--volt

W--watt

[ohm]--ohm

[micro]g--microgram--10 -6 gram



    (b) Other units of measure:



Btu--British thermal unit

 [deg]C--degree Celsius (centigrade)

cal--calorie

cfm--cubic feet per minute

cu ft--cubic feet

dcf--dry cubic feet

dcm--dry cubic meter

dscf--dry cubic feet at standard conditions

dscm--dry cubic meter at standard conditions

eq--equivalent

[deg]F--degree Fahrenheit

ft--feet

gal--gallon

gr--grain

g-eq--gram equivalent

hr--hour

in--inch

k--1,000

l--liter

lpm--liter per minute

lb--pound

meq--milliequivalent

min--minute

ml--milliliter

mol. wt.--molecular weight

ppb--parts per billion

ppm--parts per million

psia--pounds per square inch absolute

psig--pounds per square inch gage

[deg]R--degree Rankine

scf--cubic feet at standard conditions

scfh--cubic feet per hour at standard conditions

scm--cubic meter at standard conditions

sec--second

sq ft--square feet

std--at standard conditions



    (c) Chemical nomenclature:



CdS--cadmium sulfide

CO--carbon monoxide

CO2--carbon dioxide

HCl--hydrochloric acid

Hg--mercury

H2O--water

H2S--hydrogen sulfide

H2SO4--sulfuric acid

N2--nitrogen

NO--nitric oxide

NO2--nitrogen dioxide

NOX--nitrogen oxides

O2--oxygen

SO2--sulfur dioxide

SO3--sulfur trioxide

SOX--sulfur oxides



    (d) Miscellaneous:



A.S.T.M.--American Society for Testing and Materials



[42 FR 37000, July 19, 1977; 42 FR 38178, July 27, 1977]