9 Va. Admin. Code § 5-10-30

Current through Register Vol. 41, No. 9, December 16, 2024

Section 9VAC5-10-30 - Abbreviations

A -- ampere

act -- actual

AQCR -- Air Quality Control Region

AQMA -- Air Quality Maintenance Area

ASTM -- American Society for Testing and Materials

avg -- average

Be -- Beryllium

Btu -- British thermal unit

°C -- degree Celsius (centigrade)

cal -- calorie

cc -- cubic centimeter

CdS -- cadmium sulfide

cfm -- cubic feet per minute

CFR -- Code of Federal Regulations ( 40 CFR 35 means Part 35 of Title 40 of the Code of Federal Regulations; 40 CFR 35.20 means Section 35.20 in Part 35 of Title 40 of the Code of Federal Regulations)

CO -- carbon monoxide

CO₂ -- carbon dioxide

COH -- Coefficient of Haze (unit of measure for the soiling index)

cu ft -- cubic feet

d -- day

dcf -- dry cubic feet

dcm -- dry cubic meter

dscf -- dry cubic feet at standard conditions

dscm -- dry cubic meter at standard conditions

EPA -- U.S. Environmental Protection Agency

eq -- equivalents

°F -- degree Fahrenheit

FR -- Federal Register (36 FR 1492, May 3, 1971 means page 1492, dated May 3, 1971, of Volume 36 of the Federal Register - the page indicated is the first page of the referenced material)

ft -- feet

ft² -- square feet

ft³ -- cubic feet

g -- gram

gal -- gallon

GEP -- good engineering practice

g-eq -- gram equivalents

gr -- grain

HCl -- hydrochloric acid or hydrogen chloride

Hg -- mercury

hp -- horse power

hr -- hour

H₂O -- water

H₂S -- hydrogen sulfide

H₂SO₄ -- sulfuric acid

Hz -- hertz

I.D. -- inside diameter

in -- inch

inHg -- inches of mercury

inH₂O -- inches of water

J -- joule

K -- Kelvin

k -- 1,000

kg -- kilogram = 10³ gram

l -- liter

lb -- pound

lpm -- liter per minute

M -- molar

m -- meter

m³ -- cubic meter

meq -- milliequivalent

Mg -- megagram = 10⁶ gram

mg -- milligram = 10^-3 gram

min -- minute

ml -- milliliter = 10^-3 liter

mm -- millimeter = 10^-3 meter

mol -- mole

mol.wt. -- molecular weight

MSA -- Metropolitan Statistical Area

mV -- millivolt = 10^-3 volt

N -- normal

n -- newton

N₂ -- nitrogen

ng -- nanogram = 10^-9 gram

nm -- nanometer = 10^-9 meter

NO -- nitric oxide

NO₂ -- nitrogen dioxide

NO_X -- nitrogen oxides

O₂ -- oxygen

O.D. -- outside diameter

oz -- ounce

Pa -- pascal

PM -- particulate matter; any airborne finely divided solid or liquid material with an aerodynamic diameter smaller than 100 micrometers.

PM₁₀ -- particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers

PM_2.5 -- particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers

ppb -- parts per billion

ppm -- parts per million

psi -- pounds per square inch

psia -- pounds per square inch absolute

psig -- pounds per square inch gauge

°R -- degree Rankine

s -- second

scf -- cubic feet at standard conditions

scfh -- cubic feet per hour at standard conditions

scm -- cubic meter at standard conditions

sec -- second

SO₂ -- sulfur dioxide

SO₃ -- sulfur trioxide

SO_X -- sulfur oxides

sq ft -- square feet

std -- at standard conditions or standard

[MICRO]g -- microgram = 10^-6 gram

[MICRO]l -- microliter = 10^-6 liter

USC -- United States Code

V -- volt

v/v -- volume per volume

VOC -- volatile organic compound

W -- watt

w.g. -- water gauge

yd² -- square yard

yr -- year

% -- percent

[OHM] -- ohm

§ -- section

9 Va. Admin. Code § 5-10-30

Derived from Virginia Register Volume 13, Issue 18, eff. July 1, 1997; amended, Virginia Register Volume 27, Issue 23, eff. August 17, 2011.

Statutory Authority

§ 10.1-1308 of the Code of Virginia; Clean Air Act (§§ 110, 112, 165, 173, and 182 and Title V); 40 CFR Parts 51, 61, 63, 70, and 72.