ALCOHOLS I: METHOD 1400, Issue 2, dated 15 August 1994 - Page 4 of 4 REFERENCES: [1]
Documentation of the NIOSH Validation Tests, U.S. Department of Health, Education, and Welfare, (NIOSH) Publication No. 77-185 (1977). User check, UBTL, NIOSH Sequence #3990-S (unpublished, November 3, 1983). NIOSH Manual of Analytical Methods, 2nd ed., V. 2., S56, S65 and S63, U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 77-157-B (1977).
[2] [3]
METHOD REVISED BY: George Williamson, NIOSH/DPSE; methods originally validated under NIOSH Contract 99-74-45.
TABLE 1. PROPERTIES
Compound
Formula
mg/m 3 = 1 ppm @ NTP
M.W.
Density @ 20 °C (g/mL)
BP (°C)
VP @ 20 °C, kPa (mm Hg)
Ethanol
CH 3CH 2OH; C 2H 6O
1.883
46.07
0.789
78.5
5.6 (42)
Isopropyl alcohol
CH 3CH(OH)CH 3; C 3H 8O
2.46
60.09
0.785
82.5
4.4 (33)
3.03
74.12
0.786
82.4; MP = 25.6 °C
4.1 (31)
tert-Butyl alcohol
(CH 3)3COH; C4H10O
TABLE 2. GENERAL INFORMATION.
COMPOUND
EXPOSURE LIMITS (ppm) OSHA NIOSH ACGIH
Ethanol
TWA 1000
Isopropyl alcohol
TWA 400
tert-Butyl alcohol
TWA 100
1000
1000
CAS#
RTECS#
64-17-5
KQ6300000
400 400 500 STEL 500 STEL
67-63-0
NT8050000
100 100 150 STEL
75-65-0
EO1925000
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
