Specification Sheet

NOTE: For explanation of column headings and abbreviations, refer to Format Explanation starting on page 4.
67
Chemical Name
CAS # Synonym
IDLH
(ppm)
OEL
(ppm)
Odor
Threshold
(ppm)
Respirator
(to 10x OEL) Comments
Isoamyl alcohol
123-51-3
3-Methyl-1-butanol, Fusel oil,
Isobutyl carbinol, Isopentyl
alcohol
10000 TWA=100
STEL=125
0.045 (F)OV See comment E, page 9
Isobutane
75-28-5
2-Methyl propane,
Methylpropane
16000 STEL=1000 SA Short OV service life
Isobutene
115-11-7
1,1-Dimethylethene,
1,1-Dimethylethylene,
2-Methylpropene,
2-Methylpropylene, Isobutylene
TWA=250 OV Short service life
Isobutyl acetate
110-19-0
2-Methylpropyl acetate 7500 TWA=150 0.479 (F)OV
Isobutyl alcohol
78-83-1
2-Methyl-1-propanol, IBA,
Isobutanol, Isopropylcarbinol
8000 TWA=50 0.832 (F)OV 3M 3510 Monitor
Isobutyl nitrite
542-56-3
IBN; Nitrous acid,
2-methylpropyl ester; Nitrous
acid, isobutyl ester
C=1 (inhalable
fraction and vapor)
OV/N95 See comment E, page 9