LDPI Class I (Gases and Vapors)Hazardous Substances
Flammable Limits
Material
Carbon Disulfide
Acetylene
Formaldehyde (Gas)
Fuels and Combustible
Process Gas (containing
more than 30% H 2 by
volume)
Hydrogen
Propyl Nitrate
Acrolein (Inhibited) 1
Ethrlene Oxide 1
Propylene Oxide 1
1.3-Butadiene 1
Acetaldehyde
Allyl Alcohol
Butyl Mercaptan
n-Butyraldehyde
Carbon Monoxide
Chloroacetaldehyde
1-Chloro - 1
Nitropropane
Crotonaldehyde
1.1-Dichloro - 1
Nitroethane
Dicylopentadiene
Diethyl Ether
Diethylamine
Diethylminoethanol
Diethylene Glycol
Monobutyl Ether
Diethylene Glycol Monomethyl
Ether
N-N-Dimenthyl Aniline
Dimenthylamine
1.4-Dioxane
Di-N-Propylamine
Dipropylene Glycol
Methyl Ether
Du-Isopropylamine
Epichlorohydan
Ethyl Mercaptan
n-Ethyl Moorpholine
2-Ethyl - 3-Propyl Acrolein
Ethylene
Ethylene Glycol
Monobutyl Ether
Ethylene Glycol
Monobutyl Ether Acetate
Ethylene Glycol
Monoethyl Ether
Ethylene Glycol
Monoethyl Ether Acetate
Ethylenimine
2-Ethylehexaldehyde
Furfural
Furfural Alcohol
Hydrazine
Hydrogen Cynaide
Hydrogen Sulfide
Hydrogen Selenide
Isobutyraldehyde
Isodecalfehyde
Iso-octyl Alcohol
Iso-octyl Aldehyde
Methylacetylene
MethylacetylenePropadiene (stabilized)
Methyl Ether
Methyl Formal
Monomethyl Aniline
Monomethyl Hydrazine
Morpholine
Nitroethane
Nitromethane
1-Nitropropane
2-Nitropropane
Propionaldehyde
n-Propyl Ether
Tetrahydrofuran
Triethylamine
Unsymmetrical Dimethyl
Hydrazine (UDMH)
Valeraldehyde
Acetic Acid
Acetic Anhydride
Acetone
Acetone Cyanohydrin
Acetonitrile
Acrylic Acid
Acrylionitrile
Adiponitrile
Allyl Chlordie
Alpha-Methyl Styrene
Ammonia 2
n-Amyl Acetate
Aniline
Benzene
Benzyl Chloride
Class I
Group
Autoignition Temperatures
°F
°C
*3
A
B
194
581
795
B
B
B
B [C]
B [C]
B [C]
B [C]
C
C
C
C
C
C
-
C
C
-
C
C
C
C
C
-
Flash Point
°F
°C
90
305
429
968
347
455
804
840
788
347
713
-
520
175
235
429
449
420
175
378
-22
gas
gas
gas
gas
68
-15
-20
-35
gas
425
1128
190
218
609
88
450
-
-39
21
2
-22
gas
-
76
32
-45
-23
-
-
-
442
228
172
78
C
C
C
C
C
465
700
752
356
570
241
371
400
180
299
205
145
96
63
-
gas
600
772
572
-
316
411
300
-
2.1
12
17
186
86
-
88
<0
155
68
24.6
2.8
2
-
-
3.8
2.8
460
238
143
62
1.1@200 °F
C
645
340
160
71
0.88@200 °F 8.54@200 °F
C
455
235
110
43
1.7@200 °F
C
C
C
C
C
C
C
C
C
C
C
C
C
C
715
608
375
600
915
379
320
191
316
490
124
12
112
140
167
100
0
52
-11
44
60
75
38
-18
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
1000
500
538
260
-
385
-
gas
-
196
-
387
197
-
-
-
662
460
900
382
590
778
785
789
802
405
419
610
480
350
238
482
194
310
414
418
421
428
207
215
321
249
480
432
867
600
869
1270
975
820
898
249
222
464
316
465
688
524
438
481
-
485
574
498
360
615
498
585
-18
-18
82
gas
gas
gas
-
gas
-
905
1066
928
680
1139
928
1085
5
54
103
120
-4
165
42
122
32
200
-25
129
-15
12
39
49
-20
74
6
50
0
93
-32
54
gas
60
158
12
153
16
70
-11
67
4.4
1
36
4.1
-
15.6@200 °F
1.7 3.3
0.85@200 °F 7.2@200 °F
2.1
1.8
2.9
5.6
4
1.6
1.7 -
3
-
4.72
1.5
4.4
3.3
3.4
1.1
0.9
1.2
54.8
19.3
16.3
9.8
40
44
10.6
2.5
5.4
1.4
3.4
85
-8
37
28
35
24
36
-30
21
-14
-9
3.2
2.1
-
12.7@200 °F
-
185
17
98
82
95
75
96
-22
70
6
16
gas
Page 1
2.7
gas
-1
-1
180
5.1
21
18
C
-
4.2
1.6
3
3.5
-
-
450
23 - 270
gas
5.6
-
14.4
22
-
-
2.6
2.5
-
-
842
74 - 518
gas
36
10.1
0.85
31
< -18
-
5
-
-
-
4.3
2.4
15.5
1.9
1.8
gas
54
63
-
-
-
C
C
C
C
C
C
C
C
-
168
90
-49
-9
1.9
1.5
2
1.9
1.5
2
3.1
2.5
1
12.5
74
-
503
160
312
0.1
-
-
-
232
2.6
0.9
1
75
100
31
100
36
12
60
18
1.9
12.5
-
-
-
-
62
13
Density
(Air = 1.0)
50
100
73
4
2
2.8
3
2.3
2
4
2.5
144
55
937
320
594
-
gas
gas
-
-
1.3
2.5
7
20
-26
-28
-37
-38
70
35
-8
-
Percent by Volume
Lower
Upper
-30
gas
gas
Vapor
27
2.5
1.4
3.4 7.3 2.6
2.2 2.6
1.3
2
1.2
1.6
3.7
1.6
3
2.6
2.1
3.1
3.1
2
3.53
2.5
3.5
92
11.2
11
17
7
11.8
8
2
-
-
95
4 19.9@200 °F
2.7
10.3
2.5
13
2.2
12
3
16
2.4
8
3
17
2.9
11.1
1.9
6.1
15
28
1.1
7.5
1.3
11
1.3
7.9
1.1 -
2
3
2.1
3.5
2
2.9
1.4
2.5
1.8
2.6
0.6
4.5
3.2
2.8
4.4
LDPI Class I (Gases and Vapors)Hazardous Substances
Butane
1-Butanol
2-Butanol
Iso-butyl Acetate
n-Butyl Acetate
sec-Butyl Acetate
n-Butyl Acrylate (inhibited)
n-Butyl Glycidyl Ether 1
n-Butylacetate
n-Butylacetate (inhibited)
Butylamine
Butylene
n-Butyric Acid
Chlorobenzene
Chloroprene
Cresol
Cumene
Cyclohexane
Cylcohexanol
Cyclohexanone
Cyclohexene
Cyclopropane
p-Cymene
n-Decanol
Decene
Diacetopne Alcohol
o-Dichloroethane
1.1-Dichloroethane
1.2-Dichloroethylene
1.3-Dichloropropene
Diethyl Benzene
Di-Isobutyl Kelone
Di-Isobutylene
Dimethyl Formamide
Dipenlene
Dimethyl Sulfate
Dodecene
Ethane
Ethanol
Ethyl Acetate
Ethyl Acetate (inhinited)
Ethyl Benzene
Ethyl Butanol
Ethyl Butyl Ketone
Ethyl Chloride
Ethyl Formate
2-Ethyl Hexyl
2-Ethyl Hexyl Acrylate
Ethyl Silicate
Ethylamine
Ethylene Chlorohydrin
Ethylene Dichloride
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Ethylene Glycol Monomethyl Ether
Ethylenediamine
Formic Acid (90%)
Fuel Oils
Gasoline
Heptane
Heptene
Hexane
Hexanol
2-Hexanone
Hexenes
sec-Hexyl Acetate
Isoamyl Acetate
Isoamyl Alcohol
Isobutyl Acrylate
Isophorone
Isopropene
Isopropyl Acetate
Isopropyl Ether
Isopropyl Glycidyl Ether
Isopropylacetate
Isopropropylamine
Kerosene
Liquified Petroleum
Products
Mesityl Oxide
Methane
Methanol
Methyl Acetate
Methyl Acrylate
Methyl Amyl Alcohol
Methyl n-Amyl Ketone
Methyl Ethyl Ketone
Methyl Formate
Methyl Isobutyl Ketone
Methyl Mercaptan
Methyl Isocynate
Methyl Methacrylate
2-Methyl - 1-Propanol
2-Methyl - 2-Proponal
Methylamine
Methylcyclohexane
Methylcyclohexanol
o-Methylcyclohexanone
Monoethanolamine
Monoisopropanolamine
Naptha (Coal Tar)
Naptha (Petroleum) 4
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
550
650
761
790
790
-
288
343
405
421
421
-76
98
75
-
1038 - 1110
293
55
421
293
312
385
443
593
559 - 599
795
473
572
473
471
938
817
550
455
1118
1198
820
860
743 - 842
395 - 450
-
-
-
10
gas
< 20
gas
117
180
< 131
120
23
136
113
gas
55
24
50
70
385
425
413
545
725
813
285
385
434
210 - 407
280 - 471
399
500
437
-
<0
795
473
424
245
-
680
662
800
860
428
860
830
-
-
761 - 842
460
402
210
405 - 540
652
999
725
850
875
-
-
-
38 - 169
-38 to -48
-
-35
110 - 162
410
374
277
288
-37
52
14
27
106
102
16
-2
64
gas
-7
10
28
11
25
149
118
185
171
107
<0
Page 2
-4
65
48
85
77
42
< -18
7.2
1.6
2.8
3.4
14
15.9
16
1.5
2.1
1.6
3.4
3.5
3.39
3
3.5
3.5
3
-
7.5
1.2 9.0@212 °F
0.8
1.5
3.8
8.9
8
7.9
-
2.4
3.5
3.5
2
-
1.1@151 °F
1.7@200 °F
4.5
3
4.42
5
1.4
5
6
3.1
2.8
1
-
7.2
15
36
16
25
5.5
3.4
0.6
1.1
2.8
3
-
7.9@250 °F
11.4@200 °F
4.5
1.2@200 °F
3.9
2.5
2.1
3.5
1.7
1.97
3.6
2.6
2.6
1
3.4
3.9
3.9
2.1
2.6
23
8.0@200 °F
3.9
5.3
1.7
1.7@123 °F
21.8
26
8.2
10.6@202 °F
2.4
4.9
1.2
gas
4
2.2
2.6
4.5
8
-
19
50
82
52
15.4
16
9.7
-
-
11
-10
-2
41
39
-9
-19
18
11.5
14
6.7
7.5
1.4
31
1
1.6
3
3.5
3.7
-
1.8@100 °F
gas
12.5
-
0.7
87
gas
4.8
15.2
6.7
1.1
-
3.4
3.8
4.6
4.9
3.9
2.5
4.7
7.1 - 7.6
1.0@212 °F
43 - 72
534
422
416
478
430
250
296
25
43
30
84
-54
2
-28
12.8
14.5
12
57
5
1.1
-
< -7
-
6.9
9.2
14@STP
2.5
18
0.7
1.2 - 1.5
-22
63
25
77
109
86
184
-65
35
-18
10.4
5.6
-
1.8@STP
-4
<0
< 20
-
770
705
531
550
39
40
50
-7
145
77
393
404
449
449
994
792
780
892
806
482
565
102
104
122
< 32
-
-
60
13
344
537
385
454
468
740
759
840
840
140
56
25
360
350
427
460
220
460
443
860
756
410
46
-50
-20
73
82
52
< -18
100 - 336
-36 to -50
204
260
225
-
-
115
-58
-4
164
180
125
9.4
1.8
2.2
5.6 5.6
5.3
0.8@200 °F 7.1@200 °F
0.8
2.2@212 °F
0.7@302 °F 6.1@302 °F
3
3.3 \19
2
1.4
0.8
3.8
2.8
0.9
3.5
4.9
6.2
13
-4
10
21
4.1
2.9
3.5
3.4
2.8
1.5
4.6
5.5
4.84
4
5.1
-
64
66
-6
2
35
gas
-
-
2.4
49
-5
58
45
2.5
1.9
3
3.9
3
6.5
8
0.7@212 °F
-
56 - 57
-
0.9
1.3
1.1@212 °F
-
4
4
4.4
9.8
10
10
9.6
20
47
82
< 55
148
151
22
36
95
-
410 - 765
536 - 880
< -7
gas
-
-
1.1 - 1.4
36
-20
68
44
2
2.6
2.6
7.6
9.8
9.9
1.7
1.6
2
1.3
4
72
28
-20
81 - 86
-
725
797
775
-12
96
-4
154
111
8.4
11.2
9.8@212 °F
-
1.7
1.7
1.5
gas
161
82
-4
519
455
231
252
1.6
1.4
1.7@212 °F
-
22
31
48
-
133 - 135
396
391
455
237
188
255
472
363
427
372
432
966
851
448
485
-
178 - 187
424
245
300
245
244
503
436
288
235
603
647
438
460
745
736
833
458
370
491
882
685
800
702
810
72
88
118
559
132
790
559
594
725
830
1099
-60
37
24
-
8
20.7
6.7
-
1.1
5.9
2.5
LDPI Class I (Gases and Vapors)Hazardous Substances
Nitrobenzene
Nonane
Nonene
Octane
Octene
n-Octyl Alcohol
Pentane
1-Pentanol
2-Pentanone
1-Pentene
Pheneylhydrazine
Propane
1-Propanol
2-Propanol
Proprionic Acid
Proprionic Anhydride
n-Propyl Acetate
Propylene
Propylene Dichloride
Pryidine
Styrene
Tetrahydronapthalene
Carbon Disulfide
Acetylene
Formaldehyde (Gas)
Fuels and Combustible
Process Gas (containing
more than 30% H 2 by
volume)
Hydrogen
Propyl Nitrate
Acrolein (Inhibited) 1
Ethrlene Oxide 1
Propylene Oxide 1
1.3-Butadiene 1
Acetaldehyde
Allyl Alcohol
Butyl Mercaptan
n-Butyraldehyde
Carbon Monoxide
Chloroacetaldehyde
1-Chloro - 1
Nitropropane
Crotonaldehyde
1.1-Dichloro - 1
Nitroethane
Dicylopentadiene
Diethyl Ether
Diethylamine
Diethylminoethanol
Diethylene Glycol
Monobutyl Ether
Diethylene Glycol Monomethyl
Ether
N-N-Dimenthyl Aniline
Dimenthylamine
1.4-Dioxane
Di-N-Propylamine
Dipropylene Glycol
Methyl Ether
Du-Isopropylamine
Epichlorohydan
Ethyl Mercaptan
n-Ethyl Moorpholine
2-Ethyl - 3-Propyl Acrolein
Ethylene
Ethylene Glycol
Monobutyl Ether
Ethylene Glycol
Monobutyl Ether Acetate
Ethylene Glycol
Monoethyl Ether
Ethylene Glycol
Monoethyl Ether Acetate
Ethylenimine
2-Ethylehexaldehyde
Furfural
Furfural Alcohol
Hydrazine
Hydrogen Cynaide
Hydrogen Sulfide
Hydrogen Selenide
Isobutyraldehyde
Isodecalfehyde
Iso-octyl Alcohol
Iso-octyl Aldehyde
Methylacetylene
MethylacetylenePropadiene (stabilized)
Methyl Ether
Methyl Formal
Monomethyl Aniline
Monomethyl Hydrazine
Morpholine
Nitroethane
Nitromethane
1-Nitropropane
2-Nitropropane
Propionaldehyde
n-Propyl Ether
Tetrahydrofuran
Triethylamine
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
*3
A
B
900
401
-
482
302
403
446
-
206
230
-
470
572
846
527
-
-
C
C
-
C
C
C
C
C
-
243
300
452
275
< -40
450
413
399
466
285
450
455
537
482
490
385
90
305
429
gas
968
347
455
804
840
788
347
713
-
520
175
235
429
449
420
175
378
218
609
88
-
23
12
52
63
13
gas
60
68
88
160
-22
16
20
31
71
-30
gas
gas
gas
gas
gas
gas
68
-15
-20
-35
gas
-39
21
2
-22
gas
-
4
2
2.8
3
2.3
2
4
2.5
-
232
503
160
312
168
90
-49
-9
76
32
-45
-23
-
172
78
241
371
400
180
299
205
145
96
63
gas
316
411
300
-
2.1
12
17
186
86
-
88
<0
155
0.85
-
68
2.8
2
-
-
3.8
2.8
460
238
143
62
1.1@200 °F
645
340
160
71
0.88@200 °F 8.54@200 °F
C
455
235
110
43
1.7@200 °F
C
C
C
C
C
C
C
C
C
C
C
C
C
C
715
608
375
600
915
379
320
191
316
490
124
12
112
140
167
100
0
52
-11
44
60
75
38
-18
C
C
C
C
C
C
C
C
C
C
C
C
C
C
538
260
-
385
-
gas
-
196
-1
-1
180
387
197
-
-
-
662
460
900
382
590
778
785
789
802
405
419
610
480
350
238
482
194
310
414
418
421
428
207
215
321
249
-18
-18
82
gas
gas
gas
-
gas
185
17
98
82
95
75
96
-22
70
6
16
Page 3
2.7
gas
-
4.4
1
36
4.1
-
15.6@200 °F
1.7 3.3
0.85@200 °F 7.2@200 °F
2.1
1.8
2.9
5.6
4
1.6
1.7 -
3
4.72
1.5
4.4
3.3
3.4
1.1
0.9
1.2
54.8
19.3
16.3
9.8
40
44
10.6
2.5
5.4
1.4
3.4
-
3.2
2.1
-
12.7@200 °F
-
85
-8
37
28
35
24
36
-30
21
-14
-9
5.1
21
18
C
1000
500
4.2
1.6
3
3.5
-
-
C
-
5.6
-
14.4
22
-
gas
2.6
2.5
-
24.6
450
23 - 270
5
-
-
4.3
2.4
36
10.1
842
74 - 518
gas
1.9
1.5
2
1.9
1.5
2
3.1
2.5
1
-
-
31
< -18
-
0.1
-
15.5
1.9
1.8
gas
54
63
3.5
1.5
3.9
2.7
3.6
4.6
2.6
0.9
1
-
-
-
228
\4.5
12.5
74
-
-
1.6
1.6
2.1
2.5
1.9
12.5
-
-
-
75
100
31
100
36
12
60
18
-
465
700
752
356
570
-
1.5
7.8
1.2 10.0@212 °F
1.5
8.2
1.5
8.7
2.1
9.5
2.2
13.7
2 12.7@200 °F
2.9
12.1
1.3
9.5
1.7@100 °F
8
2
11.1
3.4
14.5
1.8
12.4
0.9
6.8
0.8@212 °F 5.0@302 °F
1.3
50
2.5
100
7
73
-
442
600
772
572
6.5
-
62
13
C
C
C
C
C
-
1
144
55
-
4.3
4.4
5
3.9
3.9
4.5
2.5
3
3
2.4
2.9
6.1@212 °F
-
gas
gas
-
0.8
0.8@212 °F
-
C
C
C
C
C
C
C
C
1.8@200 °F
20
-26
-28
-37
-38
70
35
-8
937
320
594
33
7
-18
88
gas
gas
450
< -40
74
53
126
145
55
425
1128
190
88
31
74
13
21
81
91
45
0
190
842
775
750
870
545
842
851
1035
900
914
725
194
581
795
B
B
B
B [C]
B [C]
B [C]
B [C]
C
C
C
C
C
C
190
88
165
56
70
178
-
27
2.5
1.4
3.4 7.3 2.6
2.2 2.6
1.3
2
1.2
1.6
-
92
11.2
11
17
7
11.8
8
3.7
1.6
3
2.6
2.1
3.1
3.1
2
3.53
2.5
3.5
LDPI Class I (Gases and Vapors)Hazardous Substances
Unsymmetrical Dimethyl
Hydrazine (UDMH)
Valeraldehyde
Acetic Acid
Acetic Anhydride
Acetone
Acetone Cyanohydrin
Acetonitrile
Acrylic Acid
Acrylionitrile
Adiponitrile
Allyl Chlordie
Alpha-Methyl Styrene
Ammonia 2
n-Amyl Acetate
Aniline
Benzene
Benzyl Chloride
Butane
1-Butanol
2-Butanol
Iso-butyl Acetate
n-Butyl Acetate
sec-Butyl Acetate
n-Butyl Acrylate (inhibited)
n-Butyl Glycidyl Ether 1
n-Butylacetate
n-Butylacetate (inhibited)
Butylamine
Butylene
n-Butyric Acid
Chlorobenzene
Chloroprene
Cresol
Cumene
Cyclohexane
Cylcohexanol
Cyclohexanone
Cyclohexene
Cyclopropane
p-Cymene
n-Decanol
Decene
Diacetopne Alcohol
o-Dichloroethane
1.1-Dichloroethane
1.2-Dichloroethylene
1.3-Dichloropropene
Diethyl Benzene
Di-Isobutyl Kelone
Di-Isobutylene
Dimethyl Formamide
Dipenlene
Dimethyl Sulfate
Dodecene
Ethane
Ethanol
Ethyl Acetate
Ethyl Acetate (inhinited)
Ethyl Benzene
Ethyl Butanol
Ethyl Butyl Ketone
Ethyl Chloride
Ethyl Formate
2-Ethyl Hexyl
2-Ethyl Hexyl Acrylate
Ethyl Silicate
Ethylamine
Ethylene Chlorohydrin
Ethylene Dichloride
Ethylene Glycol Monomethyl Ether
Ethylenediamine
Formic Acid (90%)
Fuel Oils
Gasoline
Heptane
Heptene
Hexane
Hexanol
2-Hexanone
Hexenes
sec-Hexyl Acetate
Isoamyl Acetate
Isoamyl Alcohol
Isobutyl Acrylate
Isophorone
Isopropene
Isopropyl Acetate
Isopropyl Ether
Isopropyl Glycidyl Ether
Isopropylacetate
Isopropropylamine
Kerosene
Liquified Petroleum
Products
Mesityl Oxide
Methane
Methanol
Methyl Acetate
Methyl Acrylate
Methyl Amyl Alcohol
C
C
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
480
432
867
600
869
1270
975
820
898
-
249
222
464
316
465
688
524
438
481
-
905
1066
928
680
1139
928
1085
550
650
761
790
790
-
485
574
498
360
615
498
585
288
343
405
421
421
gas
1038 - 1110
293
55
421
293
312
385
443
593
559 - 599
795
473
572
473
471
938
817
550
455
1118
1198
820
860
743 - 842
395 - 450
745
736
833
458
370
491
882
685
800
702
810
-
-
-
-
10
210 - 407
280 - 471
399
500
437
-
-
424
245
-
680
662
800
860
428
860
830
-
-
761 - 842
460
402
210
405 - 540
652
999
725
850
875
117
180
47
82
< 55
148
151
22
36
95
64
66
-6
2
35
56 - 57
120
23
136
113
gas
49
-5
58
45
gas
55
24
50
70
13
-4
10
21
-
115
-58
-4
164
180
125
<0
46
-50
-20
73
82
52
< -18
140
56
102
104
122
60
13
39
40
50
38 - 169
-38 to -48
25
< 32
-4
<0
-7
145
77
< 20
-
-22
63
25
< -7
-
77
109
86
184
-65
35
-18
-
25
43
30
84
-54
2
-28
-
-35
110 - 162
-37
43 - 72
344
537
385
454
468
36
-20
68
44
< -7
gas
< 131
360
350
427
460
220
460
443
860
756
410
81 - 86
< 20
gas
795
473
72
28
-20
96
-4
154
111
100 - 336
-36 to -50
204
260
225
-12
gas
161
82
-4
-
385
425
413
285
385
434
22
31
48
-
gas
-
410 - 765
536 - 880
-
-
519
455
231
252
725
797
775
545
725
813
16
70
-11
67
-60
37
24
72
88
118
133 - 135
396
391
455
237
188
255
472
363
427
372
432
966
851
448
485
gas
178 - 187
424
245
300
245
244
503
436
288
235
603
647
438
460
-15
12
39
49
-20
74
6
50
0
93
-32
54
60
158
12
153
-76
98
75
559
132
790
559
594
725
830
1099
-
5
54
103
120
-4
165
42
122
32
200
-25
129
87
gas
Page 4
11
-10
-2
41
95
4 19.9@200 °F
2.7
2.5
2.2
3
2.4
3
2.9
1.9
15
1.1
1.3
1.3
1.1 1.6
1.4
1.7@212 °F 9.8@212 °F
1.7
1.7
1.5
1.7
1.6
2
1.3
4
1.1 - 1.4
0.9
1.3
1.1@212 °F
2.4
0.7@212 °F
1.8
2.2
5.6 5.6
5.3
0.8@200 °F 7.1@200 °F
0.8
2.2@212 °F
0.7@302 °F 6.1@302 °F
3
3.3 \19
2
1.4
0.8
3.8
2.8
0.9
3.5
4.9
6.2
1.8@STP
14@STP
2.5
18
0.7
1.2 - 1.5
7.1 - 7.6
1.1
1.1
1.0@212 °F
1.2 9.0@212 °F
0.8
1.5
1.8@100 °F
1.4
0.7
-
31
gas
52
14
27
106
2
2
3
2.1
3.5
2
2.9
1.4
2.5
1.8
-
10.3
13
12
16
8
17
11.1
6.1
28
7.5
11
7.9
0.6
4.5
3.2
2.8
4.4
2
2.6
2.6
8.4
11.2
7.6
9.8
9.9
4
4
4.4
-
9.8
10
10
9.6
20
2.5
1.9
3
3.9
3
-
6.5
8
4.1
2.9
3.5
3.4
2.8
1.5
4.6
5.5
4.84
4
5.1
9.4
10.4
5.6
6.9
9.2
12.8
14.5
3.4
3.8
4.6
4.9
3.9
2.5
4.7
4.8
15.2
12.5
1
1.6
3
3.5
3.7
11.5
14
6.7
-
4
2.2
2.6
4.5
15.4
16
9.7
-
7.2
1.6
2.8
3.4
1.5
2.1
1.6
14
15.9
16
12
57
5
3.4
3.5
3.39
3
3.5
3.5
3
6.7
7.5
8
7.5
3.8
8.9
8
7.9
4.5
3
4.42
2.4
3.5
3.5
2
5
1.4
5
6
3.1
2.8
1
2.6
-
-
7.2
15
36
16
25
5.5
3.4
0.6
1.1
2.8
3
-
LDPI Class I (Gases and Vapors)Hazardous Substances
Methyl n-Amyl Ketone
Methyl Ethyl Ketone
Methyl Formate
Methyl Isobutyl Ketone
Methyl Mercaptan
Methyl Isocynate
Methyl Methacrylate
2-Methyl - 1-Propanol
2-Methyl - 2-Proponal
Methylamine
Methylcyclohexane
Methylcyclohexanol
o-Methylcyclohexanone
Monoethanolamine
Monoisopropanolamine
Naptha (Coal Tar)
Naptha (Petroleum) 4
Nitrobenzene
Nonane
Nonene
Octane
Octene
n-Octyl Alcohol
Pentane
1-Pentanol
2-Pentanone
1-Pentene
Pheneylhydrazine
Propane
1-Propanol
2-Propanol
Proprionic Acid
Proprionic Anhydride
n-Propyl Acetate
Propylene
Propylene Dichloride
Pryidine
Styrene
Tetrahydronapthalene
Tetramethyl Lead
Toluene
Tridecene
Triethylbenzene
Triproptlamine
Turpentine
Undecene
Vinyl Acetate
Vinyl Chloride
Vinyl Toluene
Vinylidene Chloride
Xylenes
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
740
759
840
840
-
393
404
449
449
-
994
792
780
892
806
482
565
-
534
422
416
478
430
250
296
-
410
374
277
288
482
302
-
gas
25
149
118
185
171
107
<0
243
300
452
275
< -40
450
413
399
466
285
450
455
537
482
490
385
gas
-
896
-
< -40
488
-
gas
gas
gas
-
4
181
105
95
402
472
494
570
464 - 529
16
20
31
71
40
-
-
23
12
52
63
13
60
68
88
160
253
756
882
921
1058
33
7
-18
88
74
53
126
145
55
83
41
35
-
158
-108.4
127
-19
81 - 90
-8
-78
53
-28
27 - 32
Autoignition temperature of a substance is the lowest temperature at which the substance will spontaneously combust in a normal atmosphere,
without an external source of ignition (such as a flame or spark).
Flash point is the temperature at which a liquid or solid gives off vapors that can form as a flammable mixture with air.
Flammable limits apply generally to vapors and are defined as the concentration range in which a flammable substance can produce a flame or
explosion when an ignition source (such as a flame or spark) is present. The concentration is generally expressed as a percent
fuel by volume. Above the upper flammable limit the mixture of substance is to rich in fuel to burn. Below the lower flammable
limits the mixture lacks sufficient fuel to burn.
Vapor density is defined as the relative weight of a gas or vapor compared to air, which has an arbitrary value of one. If a gas or vapor has a vapor
density of less than one it will generally rise in the air. If the vapor density is greater than one, it will generally sink in air.
1 If equipment is isolated be sealing all conduit 1/2" or larger, in accordance with Section 501.5(A) of NFPA 70, National
Electric Code , equipment for
the group classification shown is permitted.
2 For classification of areas involving Ammonia, see Safety Code for Mechanical Refregeration , ANSI/ASHRAE 15, and
Safety Requirements for the
Storage and Handling of Anhydrous Ammonia , ANSI/CGA G2.1.
3 Certain chemicals may have characteristics that requires safeguards beyond those required for any of the above groups.
Carbon disulfide is one of
those chemicals because of its low autoignition temperature and the small joint clearance to arrest flame propagation.
4 Petroleum Naptha is a saturated hydrocarbon mixture whose boiling point is 20° to 135° C. It is also known as benzine,
ligroin, petroleum ether and naptha.
Page 5
8.0@200 °F
3.9
5.3
1.7
1.7@123 °F
21.8
26
8.2
10.6@202 °F
2.4
4.9
1.2
-
8
20.7
6.7
-
1.8@200 °F
5.9
2.5
4.3
4.4
5
3.9
3.9
4.5
2.5
3
3
2.4
0.8
0.8@212 °F
2.9
6.1@212 °F
1
-
3.9
2.5
2.1
3.5
1.7
1.97
3.6
2.6
2.6
1
3.4
3.9
3.9
2.1
2.6
23
1.1
88
31
74
13
21
81
91
45
0
190
480
-
1.2@200 °F
< -18
842
775
750
870
545
842
851
1035
900
914
725
-4
65
48
85
77
42
190
88
165
56
70
178
-
-
-7
10
28
11
7.9@250 °F
11.4@200 °F
4.5
gas
206
230
470
572
846
527
1.1@151 °F
1.7@200 °F
-
403
446
39
-9
-19
18
19
50
82
52
770
705
531
550
900
401
867 - 984
102
16
-2
64
6.5
-
1.5
7.8
1.2 10.0@212 °F
1.5
8.2
1.5
8.7
2.1
9.5
2.2
13.7
2 12.7@200 °F
2.9
12.1
1.3
9.5
1.7@100 °F
8
2
11.1
3.4
14.5
1.8
12.4
0.9
6.8
0.8@212 °F 5.0@302 °F
1.1
7.1
0.8 2.6
13.4
3.6
33
0.8
11
6.5
15.5
1.0 - 1.1
7
1.6
1.6
2.1
2.5
\4.5
3.5
1.5
3.9
2.7
3.6
4.6
3.1
5.6
4.9
3
2.2
4.1
3.4
3.7