ALCOHOLS II: METHOD 1401, Issue 2, dated 15 August 1994 - Page 4 of 4 [3]
NIOSH Manual of Analytical Methods, 2nd ed., V. 2., U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 77-157-B (1977).
METHOD REVISED BY: George Williamson, NIOSH/DPSE; S53, S62, S64 and S66 originally validated under NIOSH Contract 99-74-45.
TABLE 1. PROPERTIES
Compound
Formula
mg/m3 = 1 ppm @ NTP
M.W.
Density (g/mL)
BP (°C)
VP @ 20 °C, kPa (mm Hg)
n-Butyl alcohol
CH3CH2CH2CH2OH; C4H10O
3.03
74.12
0.810 @ 20°C
117
0.56 (4.2)
sec-Butyl alcohol
CH3CH(OH)CH2CH3; C4H10O
3.03
74.12
0.808 @ 20°C
99.5
1.7 (13)
Isobutyl alcohol
(CH3)2CHCH2OH; C4H10O
3.03
74.12
0.806 @ 15°C
n-Propyl alcohol
CH3CH2CH2OH; C 3H 8O
2.46
60.09
0.805 @ 20°C
108 1.2 (9) 97 2.0 (15)
TABLE 2. GENERAL INFORMATION Exposure Limits (ppm) COMPOUND
CAS#
RTECS#
OSHA
NIOSH
ACGIH
n-Butyl alcohol
71-36-3
EO1400000
100 TWA
C 50 (skin)
C 50 (skin)
sec-Butyl alcohol
78-92-2
EO1750000
150 TWA
100 TWA; 150 STEL
100 TWA
Isobutyl alcohol
78-83-1
NP9625000
100 TWA
50 TWA
50 TWA
n-Propyl alcohol
71-23-8
UH8225000
200 TWA
200 TWA; 250 STEL (skin)
200 TWA; 250 STEL (skin)
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
