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| DOE-HDBK-1101-2004
OSHA PSM TQ (lbs)
EPA RMP TQ (lbs)
CAS No.
Chemical Name
Appendix A
Toxic & Flammables
(29 CFR 1910.119)
Tables (40 CFR 68.130)
10,000†
74-82-8
Methane∞
10,000
74-83-9
Methyl bromide
2500
10,000†
563-46-2
2-Methyl-1-butene
10,000
10,000†
563-45-1
3-Methyl-1-butene
10,000
74-87-3
Methyl chloride [Methane, chloro-]*
15,000
10,000
79-22-1
Methyl chloroformate [Carbonochloridic
500
5000
acid, methyl ester]
10,000†
115-10-6
Methyl ether [Methane, oxybis-]∞
10,000
1338-23-4
Methyl ethyl ketone peroxide
5000
Concentration >60 %
453-18-9
Methyl fluoroacetate
100
421-20-5
Methyl fluorosulfate
100
10,000†
107-31-3
Methyl formate [Formic acid, methyl
10,000
ester]∞
60-34-4
Methyl hydrazine
100
15,000
74-88-4
Methyl iodide
7500
Methyl isocyanate [Methane, isocyanate-]∗
624-83-9
250
10,000
74-93-1
Methyl mercaptan [Methanethiol]
5000
10,000
20,000
556-64-9
Methyl thiocyanate [Thiocyanic acid,
methyl ester]
79-84-4
Methyl vinyl ketone
100
Methylamine (anhydrous) [Methanamine]∞
74-89-5
1000
10,000
2-Methylpropene [1-Propene, 2 methyl-]∞
10,000†
115-11-7
10,000
∗
Required to be on EPA's list by the 1990 Clean Air Act Amendments.
∞
On the EPA list of regulated flammable substances.
†
The applicable OSHA TQ though not specifically listed in the PSM Rule.
A-8
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