|
Group A |
Group D |
Group D |
|
acetylene |
acetic acid (glacial) |
2-methyl-1 propanol |
|
|
acetone |
(isobutyl alcohol) |
|
|
acetonitrate |
naphtha |
|
Group B |
acrylonitrite |
nonane |
|
formaldehyde |
ammonia |
nonene |
|
hydrogen |
n-amyl acetate |
octane |
|
|
sec-amyl acetate |
octene |
|
|
benzene |
pentane |
|
Group C |
butane |
1-pentanol (amyl alcohol) |
|
acetaldehyde |
1-butanol (butyl alcohol) |
2-pentanone |
|
allyl alcohol |
2-butanol |
1-pentene |
|
butyl mercaptan |
n-butyl acetate |
propane |
|
n-butyraldehydel |
sec-butyl acetate |
1-propanol (propyl alcohol) |
|
carbon monoxide |
butylamine |
propylene |
|
crotonaldehyde |
chlorobenzene |
styrene |
|
dicyclopentadiene |
cyclohexane |
toluene |
|
diethyl ether |
cyclohexene |
turpentine |
|
diethylamine |
cyclopropane |
vinyl chloride |
|
1, 1-dimethyl hydrazine |
1, 1-dichloroethane |
xylenes |
|
di-isopropylamine |
1, 2-dichloroethylene |
|
|
dimethylamine |
1, 3-dichloropropene |
|
|
1, 4-dioxane |
di-isobutylene |
Group E |
|
di-n-propylmine |
ethane |
Atmospheres with combustible |
|
epichlorohydrin |
ethanol (ethyl alcohol) |
metal dusts regardless of resistivity, |
|
ethylene |
ethyl acetate |
or other combustible dusts |
|
ethyl mercaptan |
ethyl benzene |
or similar hazardous characteristics |
|
hydrogen cyanide |
ethyl chloride |
having resistivity of |
|
hydrogen selenide |
gasoline |
<100,000 ohm-cm |
|
hydrogen sulfide |
heptane |
|
|
isobutyraldehyde |
heptene |
|
|
methylacetylene |
hexane |
Group F |
|
methyl ether |
hexenes |
Atmospheres with carbon black, |
|
methyl mercaptan |
isoamyl acetate |
charcoal, coke, or coke dusts |
|
monomethyl hydrazine |
isoprene |
which have more than 8% total |
|
morpholine |
isopropyl ether |
volatile material or atmospheres |
|
nitroethane |
LPG (liquified pet gas) |
containing these dusts sensitized |
|
nitromethane |
methane (natural gas) |
by other materials so that they |
|
2-nitropropane |
methanol (methyl alcohol) |
present an explosion hazard, and |
|
propionaldehyde |
methyl acrylate |
having a resistivity >100 ohm-cm |
|
n-propyl ether |
methyl amine |
but equal to or <100,000,000 ohm-cm |
|
tetrahydrofuran |
methyl cyclohexane |
|
|
triethylamine |
methyl ethyl ketonemethyl |
|
|
valeraldehyde |
isobutyl ketone |
Group G |
|
|
methyl isocyanate |
Atmospheres with combustible |
|
|
methyl methacylate |
dusts with resistivity of >100,000 |
|
|
|
ohm-cm |