TABLE VIII. FLAMMABILITY CHARACTERISTICS OF COMMON CHEMICALS
NFPA

RATING

 FLASH 

POINT

 ( C)

 BOILING

 POINT

 ( C)

 IGNITION

 TEMP.

 ( C)

 FLAMMABILITY

 LIMITS

 percent by volume
Lower
Upper
acetaldehyde
4
-37.8
21.1
175
4
60
acetic acid (glacial)
2
39
118
463
4
19.9
acetone
3
-18
56.7
465
2.6
12.8
acetonitrile
3
6
82
524
3
16
carbon disulfide
3
-30
46.1
90
1.3
50
cyclohexane
3
-20
81.7
245
1.3
8
diethylamine
3
-23
57
312
1.8
10.1
diethyl ether
4
-45
35
160
1.9
36
dimethyl

sulfoxide
1
95
189
215
2.6
42
ethyl alcohol
3
12.8
78.3
365
3.3
19
heptane
3
-3.9
98.3
204
1.05
6.7
hexane
3
-21.7
68.9
225
1.1
7.5
hydrogen
4
-
-252
500
4
75
isopropyl

alcohol
3
11.7
82.8
398
2
12
methyl alcohol
3
11.1
64.9
385
6.7
36
methyl ethyl

ketone
3
-6.1
80
515
1.8
10
pentane
4
-40
36.1
260
1.5
7.8
styrene
3
32.2
146.1
490
1.1
6.1
tetrahydro-

furan
3
-14
66
321
2
11.8
toluene
3
4.4
110.6
480
1.2
7.1
p-xylene
3
27.2
138.3
530
1.1
7