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Public Comment No. 1-NFPA 497-2019 [ Section No. 4.4.2 [Excluding any Sub-Sections]
]
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An alphabetical listing of selected combustible materials, with their group classification and relevantphysical properties, is provided in Table 4.4.2.
Table 4.4.2 Selected Chemicals
Chemical CAS No.Class I
DivisionGroup
TypeaFlashPoint(°C)
AIT(°C)
%LFL %UFL
VaporDensity(Air =
1)
Vapor
Pressureb
(mm Hg)
ClasZon
Grou
Acetaldehyde 75-07-0 Cd I -38 175 4.0 60.0 1.5 874.9 IIA
Acetic Acid 64-19-7 Dd II 39 426 19.9 2.1 15.6 IIA
Acetic Acid- tert-ButylEster
540-88-5 D II 1.7 9.8 4.0 40.6
Acetic Anhydride 108-24-7 D II 49 316 2.7 10.3 3.5 4.9 IIA
Acetone 67-64-1 Dd I –20 465 2.5 12.8 2.0 230.7 IIA
Acetone Cyanohydrin 75-86-5 D IIIA 74 688 2.2 12.0 2.9 0.3
Acetonitrile 75-05-8 D I 6 524 3.0 16.0 1.4 91.1 IIA
Acetylene 74-86-2 Ad GAS 305 2.5 100 0.9 36600 IIC
Acrolein (Inhibited) 107-02-8 B(C)d I 235 2.8 31.0 1.9 274.1 IIB
Acrylic Acid 79-10-7 D II 54 438 2.4 8.0 2.5 4.3 IIB
Acrylonitrile 107-13-1 Dd I 0 481 3 17 1.8 108.5 IIB
Adiponitrile 111-69-3 D IIIA 93 550 1.0 0.002
Allyl Alcohol 107-18-6 Cd I 22 378 2.5 18.0 2.0 25.4 IIB
Allyl Chloride 107-05-1 D I -32 485 2.9 11.1 2.6 366 IIA
Allyl Glycidyl Ether 106-92-3 B(C)e II 57 3.9
Alpha-Methyl Styrene 98-83-9 D II 574 0.8 11.0 4.1 2.7
n-Amyl Acetate 628-63-7 D I 25 360 1.1 7.5 4.5 4.2 IIA
sec-Amyl Acetate 626-38-0 D I 23 1.1 7.5 4.5 IIA
Ammonia 7664-41-7 Dd,f GAS 651 15 28 0.6 7498.0 IIA
Aniline 62-53-3 D IIIA 70 615 1.2 8.3 3.2 0.7 IIA
Benzene 71-43-2 Dd I -11 498 1.2 7.8 2.8 94.8 IIA
Benzyl Chloride 98-87-3 D IIIA 585 1.1 4.4 0.5
Bromopropyne 106-96-7 D I 10 324 3.0
n-Butane 106-97-8 Dd,g GAS 288 1.9 8.5 2.0 IIA
1,3-Butadiene 106-99-0 B(D)d,e GAS 420 2.0 11.5 1.9 IIB
1-Butanol 71-36-3 Dd I 36 343 1.4 11.2 2.6 7.0 IIA
Butyl alcohol(s)(butanol-2)
78-92-2 Dd I 23.8 405 1.7 9.8 2.6 IIA
Butylamine 109-73-9 D GAS -12 312 1.7 9.8 2.5 92.9 IIA
Butylene 25167-67-3 D I 385 1.6 10.0 1.9 2214.6 IIA
n-Butyraldehyde 123-72-8 Cd I -12 218 1.9 12.5 2.5 112.2 IIA
n-Butyl Acetate 123-86-4 Dd I 22 421 1.7 7.6 4.0 11.5 IIA
sec-Butyl Acetate 105-46-4 D II -8 1.7 9.8 4.0 22.2
tert-Butyl Acetate 540-88-5 D II 1.7 9.8 4.0 40.6
n-Butyl Acrylate(Inhibited)
141-32-2 D II 49 293 1.7 9.9 4.4 5.5 IIB
n-Butyl Glycidyl Ether 2426-08-6 B(C)e II
n-Butyl Formal 110-62-3 C IIIA 34.3
Butyl Mercaptan 109-79-5 C I 2 3.1 46.4
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Chemical CAS No.Class I
DivisionGroup
TypeaFlashPoint(°C)
AIT(°C)
%LFL %UFL
VaporDensity(Air =
1)
Vapor
Pressureb
(mm Hg)
ClasZon
Grou
Butyl-2-Propenoate 141-32-2 D II 49 1.7 9.9 4.4 5.5
para tert-Butyl Toluene 98-51-1 D IIIA
n-Butyric Acid 107-92-6 Dd IIIA 72 443 2.0 10.0 3.0 0.8
Carbon Disulfide 75-15-0 d,h I -30 90 1.3 50.0 2.6 358.8 IIC
Carbon Monoxide 630-08-0 Cd GAS 609 12.5 74 0.97 IIB
Chloroacetaldehyde 107-20-0 C IIIA 88 63.1
Chlorobenzene 108-90-7 D I 29 593 1.3 9.6 3.9 11.9
1-Chloro-1-Nitropropane
2425-66-3 C IIIA
Chloroprene 126-99-8 D GAS -20 4.0 20.0 3.0
Cresol 1319-77-3 D IIIA 81 559 1.1 3.7
Crotonaldehyde 4170-30-3 Cd I 13 232 2.1 15.5 2.4 33.1 IIB
Cumene 98-82-8 D I 36 424 0.9 6.5 4.1 4.6 IIA
Cyclohexane 110-82-7 D I -17 245 1.3 8.0 2.9 98.8 IIA
Cyclohexanol 108-93-0 D IIIA 68 300 3.5 0.7 IIA
Cyclohexanone 108-94-1 D II 44 420 1.1 9.4 3.4 4.3 IIA
Cyclohexene 110-83-8 D I -6 244 1.2 2.8 89.4 IIA
Cyclopropane 75-19-4 Dd I 503 2.4 10.4 1.5 5430 IIA
p-Cymene 99-87-6 D II 47 436 0.7 5.6 4.6 1.5 IIA
Decene 872-05-9 D II 235 4.8 1.7
n-Decaldehyde 112-31-2 C IIIA 0.09
n-Decanol 112-30-1 D IIIA 82 288 5.3 0.008
Decyl Alcohol 112-30-1 D IIIA 82 288 5.3 0.008
Diacetone Alcohol 123-42-2 D IIIA 64 603 1.8 6.9 4.0 1.4
Di-Isobutylene 25167-70-8 Dd I 2 391 0.8 4.8 3.8
Di-Isobutyl Ketone 108-83-8 D II 60 396 0.8 7.1 4.9 1.7
o-Dichlorobenzene 955-50-1 D IIIA 66 647 2.2 9.2 5.1 IIA
1,4-Dichloro-2,3Epoxybutane
3583-47-9 Dd I 1.9 8.5 2.0 IIA
1,1-Dichloroethane 1300-21-6 D I 438 6.2 16.0 3.4 227 IIA
1,2-Dichloroethylene 156-59-2 D I 97 460 5.6 12.8 3.4 204 IIA
1,1-Dichloro-1-Nitroethane
594-72-9 C IIIA 76 5.0
1,3-Dichloropropene 10061-02-6 D I 35 5.3 14.5 3.8
Dicyclopentadiene 77-73-6 C I 32 503 2.8 IIA
Diethylamine 109-87-9 Cd I -28 312 1.8 10.1 2.5 IIA
Diethylaminoethanol 100-37-8 C IIIA 60 320 4.0 1.6 IIA
Diethyl Benzene 25340-17-4 D II 57 395 4.6
Diethyl Ether (EthylEther)
60-29-7 Cd I -45 160 1.9 36 2.6 538 IIB
Diethylene GlycolMonobutyl Ether
112-34-5 C IIIA 78 228 0.9 24.6 5.6 0.02
Diethylene GlycolMonomethyl Ether
111-77-3 C IIIA 93 241 0.2
n-n-Dimethyl Aniline 121-69-7 C IIIA 63 371 1.0 4.2 0.7
Dimethyl Formamide 68-12-2 D II 58 455 2.2 15.2 2.5 4.1 IIA
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Chemical CAS No.Class I
DivisionGroup
TypeaFlashPoint(°C)
AIT(°C)
%LFL %UFL
VaporDensity(Air =
1)
Vapor
Pressureb
(mm Hg)
ClasZon
Grou
Dimethyl Sulfate 77-78-1 D IIIA 83 188 4.4 0.7
Dimethylamine 124-40-3 C GAS 400 2.8 14.4 1.6 IIA
2,2-Dimethylbutane 75-83-2 Dg I -48 405 319.3
2,3-Dimethylbutane 78-29-8 Dg I 396
3,3-Dimethylheptane 1071-26-7 Dg I 325 10.8
2,3-Dimethylhexane 31394-54-4 Dg I 438
2,3-Dimethylpentane 107-83-5 Dg I 335 211.7
Di-N-Propylamine 142-84-7 C I 17 299 27.1 IIA
1,4-Dioxane 123-91-1 Cd I 12 180 2.0 22.0 3.0 38.2 IIB
Dipentene 138-86-3 D II 45 237 0.7 6.1 4.7 IIA
Dipropylene GlycolMethyl Ether
34590-94-8 C IIIA 85 1.1 3.0 5.1 0.5
Diisopropylamine 108-18-9 C GAS -6 316 1.1 7.1 3.5 IIA
Dodecene 6842-15-5 D IIIA 100 255
Epichlorohydrin 3132-64-7 Cd I 33 411 3.8 21.0 3.2 13.0
Ethane 74-84-0 Dd GAS -135 472 3.0 12.5 1.0 IIA
Ethanol 64-17-5 Dd I 13 363 3.3 19.0 1.6 59.5 IIA
Ethylamine 75-04-7 Dd I -18 385 3.5 14.0 1.6 1048
Ethylene 74-85-1 Cd GAS 490 2.7 36.0 1.0 IIB
Ethylenediamine 107-15-3 Dd I 33 385 2.5 12.0 2.1 12.5
Ethylenimine 151-56-4 Cd I -11 320 3.3 54.8 1.5 211
Ethylene Chlorohydrin 107-07-3 D IIIA 59 425 4.9 15.9 2.8 7.2
Ethylene Dichloride 107-06-2 Dd I 13 413 6.2 16.0 3.4 79.7
Ethylene GlycolMonoethyl EtherAcetate
111-15-9 C II 47 379 1.7 4.7 2.3 IIA
Ethylene GlycolMonobutyl EtherAcetate
112-07-2 C IIIA 340 0.9 8.5 0.9
Ethylene GlycolMonobutyl Ether
111-76-2 C IIIA 238 1.1 12.7 4.1 1.0
Ethylene GlycolMonoethyl Ether
110-80-5 C II 235 1.7 15.6 3.0 5.4
Ethylene GlycolMonomethyl Ether
109-86-4 D II 285 1.8 14.0 2.6 9.2
Ethylene Oxide 75-21-8 B(C)d,e I -20 429 3 100 1.5 1314 IIB
2-Ethylhexaldehyde 123-05-7 C II 52 191 0.8 7.2 4.4 1.9
2-Ethylhexanol 104-76-7 D IIIA 81 0.9 9.7 4.5 0.2
2-Ethylhexyl Acrylate 103-09-3 D IIIA 88 252 0.3
Ethyl Acetate 141-78-6 Dd I -4 427 2.0 11.5 3.0 93.2 IIA
Ethyl Acrylate(Inhibited)
140-88-5 Dd I 9 372 1.4 14.0 3.5 37.5 IIA
Ethyl Alcohol 64-17-5 Dd I 13 363 3.3 19.0 1.6 59.5 IIA
Ethyl Sec-Amyl Ketone 541-85-5 D II 59
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Chemical CAS No.Class I
DivisionGroup
TypeaFlashPoint(°C)
AIT(°C)
%LFL %UFL
VaporDensity(Air =
1)
Vapor
Pressureb
(mm Hg)
ClasZon
Grou
Ethyl Benzene 100-41-4 D I 15 432 0.8 6.7 3.7 9.6
Ethyl Butanol 97-95-0 D II 57 1.2 7.7 3.5 1.5
Ethyl Butyl Ketone 106-35-4 D II 46 4.0 3.6
Ethyl Chloride 75-00-3 D GAS -50 519 3.8 15.4 2.2
Ethyl Formate 109-94-4 D GAS -20 455 2.8 16.0 2.6 IIA
Ethyl Mercaptan 75-08-1 Cd I -18 300 2.8 18.0 2.1 527.4 IIB
n-Ethyl Morpholine 100-74-3 C I 32 4.0
2-Ethyl-3-PropylAcrolein
645-62-5 C IIIA 68 4.4
Ethyl Silicate 78-10-4 D II 7.2
Formaldehyde (Gas) 50-00-0 B GAS 430 7 73 1.0 IIB
Formic Acid 64-18-6 D II 50 434 18.0 57.0 1.6 42.7 IIA
Fuel Oil 1 8008-20-6 DII or
IIIAk 38-72k 210 0.7 5.0
Fuel Oil 2II or
IIIAk 52-96k 257
Fuel Oil 6IIIA or
IIIBk 66–132k
Furfural 98-01-1 C IIIA 60 316 2.1 19.3 3.3 2.3
Furfuryl Alcohol 98-00-0 C IIIA 75 490 1.8 16.3 3.4 0.6
Gasoline 8006-61-9 Dd I -46 280 1.4 7.6 3.0
n-Heptane 142-82-5 Dd I -4 204 1.0 6.7 3.5 45.5 IIA
n-Heptene 81624-04-6 Dg I -1 204 3.4
n-Hexane 110-54-3 Dd,g I -23 225 1.1 7.5 3.0 152 IIA
Hexanol 111-27-3 D IIIA 63 3.5 0.8 IIA
2-Hexanone 591-78-6 D I 35 424 1.2 8.0 3.5 10.6
Hexene 592-41-6 D I -26 245 1.2 6.9 186
sec-Hexyl Acetate 108-84-9 D II 45 5.0
Hydrazine 302-01-2 C II 38 23 98.0 1.1 14.4
Hydrogen 1333-74-0 Bd GAS 500 4 75 0.1 IIC
Hydrogen Cyanide 74-90-8 Cd GAS -18 538 5.6 40.0 0.9 IIB
Hydrogen Selenide 7783-07-5 C I 7793
Hydrogen Sulfide 7783-06-4 Cd GAS 260 4.0 44.0 1.2 IIB
Isoamyl Acetate 123-92-2 D I 25 360 1.0 7.5 4.5 6.1
Isoamyl Alcohol 123-51-3 D II 43 350 1.2 9.0 3.0 3.2 IIA
Isobutane 75-28-5 Dg GAS 460 1.8 8.4 2.0 IIA
Isobutyl Acetate 110-19-0 Dd I 18 421 2.4 10.5 4.0 17.8
Isobutyl Acrylate 106-63-8 D I 427 4.4 7.1
Isobutyl Alcohol 78-83-1 Dd I -40 416 1.2 10.9 2.5 10.5 IIA
Isobutyraldehyde 78-84-2 C GAS -40 196 1.6 10.6 2.5 IIA
Isodecaldehyde 112-31-2 C IIIA 5.4 0.09
Isohexane 107-83-5 Dg 264 211.7 IIA
Isopentane 78-78-4 Dg 420 688.6
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Chemical CAS No.Class I
DivisionGroup
TypeaFlashPoint(°C)
AIT(°C)
%LFL %UFL
VaporDensity(Air =
1)
Vapor
Pressureb
(mm Hg)
ClasZon
Grou
Isooctyl Aldehyde 123-05-7 C II 197 1.9
Isophorone 78-59-1 D 84 460 0.8 3.8 4.8 0.4
Isoprene 78-79-5 Dd I -54 220 1.5 8.9 2.4 550.6
Isopropyl Acetate 108-21-4 D I 460 1.8 8.0 3.5 60.4
Isopropyl Ether 108-20-3 Dd I -28 443 1.4 7.9 3.5 148.7 IIA
Isopropyl GlycidylEther
4016-14-2 C I
Isopropylamine 75-31-0 D GAS -26 402 2.3 10.4 2.0
Kerosene 8008-20-6 D II 72 210 0.7 5.0 IIA
Liquefied PetroleumGas
68476-8-7 D I 405
Mesityl Oxide 141-97-9 Dd I 31 344 1.4 7.2 3.4 47.6
Methane 74-82-8 Dd GAS 600 5 15 0.6 IIA
Methanol 67-56-1 Dd I 12 385 6.0 36.0 1.1 126.3 IIA
Methyl Acetate 79-20-9 D GAS -10 454 3.1 16.0 2.6 IIA
Methyl Acrylate 96-33-3 D GAS -3 468 2.8 25.0 3.0 IIB
Methyl Alcohol 67-56-1 Dd I 385 6.0 36 1.1 126.3 IIA
Methyl Amyl Alcohol 108-11-2 D II 41 1.0 5.5 3.5 5.3 IIA
Methyl Chloride 74-87-3 D GAS -46 632 8.1 17.4 1.7 IIA
Methyl Ether 115-10-6 Cd GAS -41 350 3.4 27.0 1.6 IIB
Methyl Ethyl Ketone 78-93-3 Dd I -6 404 1.4 11.4 2.5 92.4 IIB
Methyl Formal 534-15-6 Cd I 1 238 3.1
Methyl Formate 107-31-3 D GAS -19 449 4.5 23.0 2.1 IIA
2-Methylhexane 31394-54-4 Dg I 280
Methyl Isobutyl Ketone 108-10-1 Dd I 13 440 1.2 8.0 3.5 11
Methyl Isocyanate 624-83-9 D GAS -15 534 5.3 26.0 2.0 IIA
Methyl Mercaptan 74-93-1 C GAS -18 3.9 21.8 1.7
Methyl Methacrylate 80-62-6 D I 10 422 1.7 8.2 3.6 37.2 IIA
Methyl N-Amyl Ketone 110-43-0 D II 49 393 1.1 7.9 3.9 3.8
Methyl Tertiary ButylEther
1634-04-4 D I -80 435 1.6 8.4 0.2 250.1
2-Methyloctane 3221-61-2 220 6.3
2-Methylpropane 75-28-5 Dg I 460 2639
Methyl-1-Propanol 78-83-1 Dd I -40 416 1.2 10.9 2.5 10.1 IIA
Methyl-2-Propanol 75-65-0 Dd I 10 360 2.4 8.0 2.6 42.2
2-Methyl-5-EthylPyridine
104-90-5 D 74 1.1 6.6 4.2
Methylacetylene 74-99-7 Cd I 1.7 1.4 4306
Methylacetylene-Propadiene
27846-30-6 C I IIB
Methylal 109-87-5 C I -18 237 1.6 17.6 2.6 398
Methylamine 74-89-5 D GAS 430 4.9 20.7 1.0 IIA
2-Methylbutane 78-78-4 Dg -56 420 1.4 8.3 2.6 688.6
Methylcyclohexane 208-87-2 D I -4 250 1.2 6.7 3.4
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Chemical CAS No.Class I
DivisionGroup
TypeaFlashPoint(°C)
AIT(°C)
%LFL %UFL
VaporDensity(Air =
1)
Vapor
Pressureb
(mm Hg)
ClasZon
Grou
Methylcyclohexanol 25630-42-3 D 68 296 3.9
2-Methycyclohexanone 583-60-8 D II 3.9
2-Methylheptane Dg 420
3-Methylhexane 589-34-4 Dg 280 61.5
3-Methylpentane 94-14-0 Dg 278
2-Methylpropane 75-28-5 Dg I 460 2639
2-Methyl-1-Propanol 78-83-1 Dd I -40 223 1.2 10.9 2.5 10.5
2-Methyl-2-Propanol 75-65-0 Dd I 478 2.4 8.0 2.6 42.2
2-Methyloctane 2216-32-2 Dg 220
3-Methyloctane 2216-33-3 Dg 220 6.3
4-Methyloctane 2216-34-4 Dg 225 6.8
Monoethanolamine 141-43-5 D 85 410 2.1 0.4 IIA
Monoisopropanolamine 78-96-6 D 77 374 2.6 1.1
Monomethyl Aniline 100-61-8 C 482 0.5
Monomethyl Hydrazine 60-34-4 C I 23 194 2.5 92.0 1.6
Morpholine 110-91-8 Cd II 35 310 1.4 11.2 3.0 10.1 IIA
Naphtha (Coal Tar) 8030-30-6 D II 42 277 IIA
Naphtha (Petroleum) 8030-30-6 Dd,i I 42 288 1.1 5.9 2.5 IIA
Neopentane 463-82-1 Dg -65 450 1.4 8.3 2.6 1286
Nitrobenzene 98-95-3 D 88 482 1.8 4.3 0.3 IIA
Nitroethane 79-24-3 C I 28 414 3.4 2.6 20.7 IIB
Nitromethane 75-52-5 C I 35 418 7.3 2.1 36.1 IIA
1-Nitropropane 108-03-2 C I 34 421 2.2 3.1 10.1 IIB
2-Nitropropane 79-46-9 Cd I 28 428 2.6 11.0 3.1 17.1
n-Nonane 111-84-2 Dg I 31 205 0.8 2.9 4.4 4.4 IIA
Nonene 27214-95-8 D I 0.8 4.4
Nonyl Alcohol 143-08-8 D 0.8 6.1 5.0 0.02 IIA
n-Octane 111-65-9 Dd,g I 13 206 1.0 6.5 3.9 14.0 IIA
Octene 25377-83-7 D I 8 230 0.9 3.9
n-Octyl Alcohol 111-87-5 D 4.5 0.08 IIA
n-Pentane 109-66-0 Dd,g I -40 243 1.5 7.8 2.5 513 IIA
1-Pentanol 71-41-0 Dd I 33 300 1.2 10.0 3.0 2.5 IIA
2-Pentanone 107-87-9 D I 7 452 1.5 8.2 3.0 35.6 IIA
1-Pentene 109-67-1 D I -18 275 1.5 8.7 2.4 639.7
2-Pentene 109-68-2 D I -18 2.4
2-Pentyl Acetate 626-38-0 D I 23 1.1 7.5 4.5
Phenylhydrazine 100-63-0 D 89 3.7 0.03
Process Gas > 30%H2 Bj GAS 520 4.0 75.0 0.1
Propane 74-98-6 Dd GAS 450 2.1 9.5 1.6 IIA
1-Propanol 71-23-8 Dd I 15 413 2.2 13.7 2.1 20.7 IIA
2-Propanol 67-63-0 Dd I 12 399 2.0 12.7 2.1 45.4 IIA
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Chemical CAS No.Class I
DivisionGroup
TypeaFlashPoint(°C)
AIT(°C)
%LFL %UFL
VaporDensity(Air =
1)
Vapor
Pressureb
(mm Hg)
ClasZon
Grou
Propiolactone 57-57-8 D 2.9 2.5 2.2
Propionaldehyde 123-38-6 C I -9 207 2.6 17.0 2.0 318.5 IIB
Propionic Acid 79-09-4 D II 54 466 2.9 12.1 2.5 3.7 IIA
Propionic Anhydride 123-62-6 D 74 285 1.3 9.5 4.5 1.4
n-Propyl Acetate 109-60-4 D I 14 450 1.7 8.0 3.5 33.4 IIA
n-Propyl Ether 111-43-3 Cd I 21 215 1.3 7.0 3.5 62.3
Propyl Nitrate 627-13-4 Bd I 20 175 2.0 100.0
Propylene 115-07-1 Dd GAS 460 2.4 10.3 1.5 IIA
Propylene Dichloride 78-87-5 D I 16 557 3.4 14.5 3.9 51.7 IIA
Propylene Oxide 75-56-9 B(C)d,e I -37 449 2.3 36.0 2.0 534.4 IIB
Pyridine 110-86-1 Dd I 20 482 1.8 12.4 2.7 20.8 IIA
Styrene 100-42-5 Dd I 31 490 0.9 6.8 3.6 6.1 IIA
Tetrahydrofuran 109-99-9 Cd I -14 321 2.0 11.8 2.5 161.6 IIB
Tetrahydronaphthalene 119-64-2 D IIIA 385 0.8 5.0 4.6 0.4
Tetramethyl Lead 75-74-1 C II 38 9.2
Toluene 108-88-3 Dd I 4 480 1.1 7.1 3.1 28.53 IIA
n-Tridecene 2437-56-1 D IIIA 0.6 6.4 593.4
Triethylamine 121-44-8 Cd I -9 249 1.2 8.0 3.5 68.5 IIA
Triethylbenzene 25340-18-5 D 83 56.0 5.6
2,2,3-Trimethylbutane Dg 442
2,2,4-Trimethylbutane Dg 407
2,2,3-Trimethylpentane Dg 396
2,2,4-Trimethylpentane Dg 415 IIA
2,3,3-Trimethylpentane Dg 425
Tripropylamine 102-69-2 D II 41 4.9 1.5 IIA
Turpentine 8006-64-2 D I 35 253 0.8 4.8
n-Undecene 28761-27-5 D IIIA 0.7 5.5
UnsymmetricalDimethyl Hydrazine
57-14-7 Cd I -15 249 2.0 95.0 1.9 IIB
Valeraldehyde 110-62-3 C I 280 222 3.0 34.3
Vinyl Acetate 108-05-4 Dd I -6 402 2.6 13.4 3.0 113.4 IIA
Vinyl Chloride 75-01-4 Dd GAS -78 472 3.6 33.0 2.2 IIA
Vinyl Toluene 25013-15-4 D 52 494 0.8 11.0 4.1
Vinylidene Chloride 75-35-4 D I 570 6.5 15.5 3.4 599.4 IIA
Xylene 1330-20-7 Dd I 25 464 0.9 7.0 3.7 IIA
Xylidine 121-69-7 C IIIA 63 371 1.0 4.2 0.7
aType is used to designate if the material is a gas, flammable liquid, or combustible liquid. (See 4.2.6 and4.2.7.)
bVapor pressure reflected in units of mm Hg at 77°F (25°C) unless stated otherwise.
cClass I, Zone Groups are based on IEC 80079-20-1, 2017, Explosive atmospheres — Part 20-1: Materialcharacteristics for gas and vapor classification — Test methods and data, which contains additional data onMESG and group classifications.
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dMaterial has been classified by test.
eWhere all conduit runs into explosionproof equipment, the conduit is provided with explosionproof sealsinstalled within 18 in. (450 mm) of the enclosure, equipment for the group classification shown inparentheses is permitted.
fFor classification of areas involving ammonia, see ANSI/IIAR 2 Standard for Safe Design of Closed-CircuitAmmonia Refrigeration Systems, and CGA G2.1, Safety Requirements for the Storage and Handling ofAnhydrous Ammonia.
gCommercial grades of aliphatic hydrocarbon solvents are mixtures of several isomers of the samechemical formula (or molecular weight). The autoignition temperatures (AIT) of the individual isomers aresignificantly different. The electrical equipment should be suitable for the AIT of the solvent mixture. (SeeA.4.4.2.)
hCertain chemicals have characteristics that need safeguards beyond those necessary for any of theabove groups. Carbon disulfide is one of these chemicals because of its low autoignition temperature andthe small joint clearance necessary to arrest its flame propagation.
iPetroleum naphtha is a saturated hydrocarbon mixture whose boiling range is 68°F to 275°F (20°C to135°C). It is also known as benzine, ligroin, petroleum ether, and naphtha.
jFuel and process gas mixtures found by test not to present hazards similar to those of hydrogen can begrouped based on the test results.
k Liquid type and flash point vary due to regional blending differences.
Additional Proposed Changes
File Name Description Approved
NFPA_497_Memo_for_Table_4_2_2.docx
Isodecaldehyde_USCG_1999.pdf
Statement of Problem and Substantiation for Public Comment
A number of materials were incorrectly labeled as to Type, that is Gas, or liquid Class, based on the tabulated normal boiling points and flash points. Additionally multiple materials listed as having the same CAS number either do not include the same information or should not be listed as the same CAS number. Recommended changes are substantiated by screenshots from the DIPPR database, which is a recognized source of critically evaluated thermo-physical property data. A US Coast Guard document downloaded from the Cameo website supports the recommended data for mixed isodecaldehydes.
Related Item
• FR-3
Submitter Information Verification
Submitter Full Name: Samuel Rodgers
Organization: Honeywell, Inc.
Street Address:
City:
State:
Zip:
Submittal Date: Fri Apr 26 14:35:48 EDT 2019
Committee: EEC-AAA
Committee Statement
CommitteeAction:
Rejected but see related SR
Resolution: SR-4-NFPA 497-2019
National Fire Protection Association Report https://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPar...
9 of 15 12/10/2019, 1:59 PM
Statement: A number of materials were incorrectly labeled as to Type, that is Gas, or liquid Class, based on thetabulated normal boiling points and flash points. Additionally multiple materials listed as having thesame CAS number either did not include the same information or should not have been listed as thesame CAS number. These changes are from the DIPPR database, which is a recognized source ofcritically evaluated thermo-physical property data. A US Coast Guard document downloaded fromthe Cameo website supports the recommended data for mixed isodecaldehydes. Additional MESGand MIC ratio data were extracted from ISO/IEC 80079-20-1. The MESG for Methyl Ethyl Ketonewas updated based on independent test data.
National Fire Protection Association Report https://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPar...
10 of 15 12/10/2019, 1:59 PM
Bill, I have followed up on the materials listed below as well as multiple synonym entries where the properties do not match and offer DIPPR support for my comments to update the material data table. This is NOT a complete review of the data table, but it is significant enough that I believe we need to make updates. The Design Institute for Physical Properties (DIPPR) is the world's best source of critically evaluated thermo‐physical and environmental property data. Using a proprietary data evaluation methodology DIPPR’s recommended values allow practitioners to quickly produce results from their computational tools rather than spending time ensuring that the underlying data are robust. DIPPR data are used by leading chemical, petroleum, and pharmaceutical companies throughout the world and used extensively in third‐party software. The DIPPR process uses a systems approach in evaluating data from all available sources to triangulate on the best values, resulting in higher accuracy than could be achieved using only individual points. This approach includes hundreds of applied constraints on property values stemming from inter‐property relationships, expected trends of properties between related chemicals, and the impact of chemical similarities and differences. Once these constraints are simultaneously satisfied for all properties, experts review the compound and give final approval for the compound to be added to the database. Each compound in the database therefore has recommended values for all properties and comments as to which of all reported property values is most reliable. DIPPR does not include MIC ratio or MESG. Since the recommendations include changing material Type from Gas to Class I liquid and vice‐versa, the relevant definitions are below:
3.3.6 Flammable Liquid. Any liquid that has a closed‐cup flash point below 100°F (37.8°C), as determined by the test procedures and apparatus set forth in NFPA 30 and a Reid vapor pressure that does not exceed an absolute pressure of 40 psi (276 kPa) at 100°F (37.8°C), as determined by ASTM D323, Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method). Flammable liquids are classified as Class I liquids and further subclassified in accordance with the following: (1) Class IA Liquid — Any liquid that has a flash point below 73°F (22.8°C) and boiling point below 100°F (37.8°C); (2) Class IB
Liquid — Any liquid that has a flash point below 73°F (22.8°C) and boiling point at or above 100°F (37.8°C); (3) Class IC Liquid — Any liquid that has a flash point at or above 73°F (22.8°C), but below 100°F (37.8°C). [30, 2015]
All supporting screenshots from DIPPR database follow the table below. After reviewing the materials that I had listed in the original committee input, I further checked those where more than one material was listed with the same CAS number. I noted that there were a number of discrepancies in input values when the two or more synonyms were compared. By comparison to DIPPR, the correct values determined and applied to both synonyms. Methylacetylene lists only minimal properties, so I included other available properties. Methylacetylene‐propadiene is listed with an incorrect CAS number.
This material is a mixed liquefied gas with a boiling point around ‐36 to ‐4 F, according to NIOSH. I would not recommend including a BP for a mixture. I could not locate AIT for this material. There is a stabilized mixture, so‐called, that has a CAS number. This is a link to NIOSH‐CDC data on MAPP mixture. https://www.cdc.gov/niosh/npg/npgd0393.html
2,3 Dimethylpentane and Isohexane are both listed with CAS 107‐83‐5.
This is not correct. While both are C7 materials, they are different structure. The CAS matches isohexane as well as the synonym 2‐methylpentane. 2,3 Dimethylpentane is CAS 565‐59‐3 and the listed AIT matches, so I included the other available properties.
n‐Decaldehyde and Isodecaldehyde are listed with the same CAS number.
This is not correct. Cameo lists a separate CAS number for Isodecaldehyde and provides a link to the 1999 USCG document. https://cameochemicals.noaa.gov/chemical/8751 According to USCG, Isodecaldehyde is a mixture of various isomers. This material is also found in European ECHA list as 8‐methyl nonanal. Link to NIH site for this material https://pubchem.ncbi.nlm.nih.gov/compound/8‐Methylnonanal#section=Depositor‐Supplied‐Synonyms
Naphtha (Coal Tar) and Naphtha (Petroleum) have differing values, yet these are both nominal mixtures. I recommend doing nothing. 2‐Methylhexane and 2,3‐Dimethylhexane are both listed with CAS 31394‐54‐4, but neither is correct according to DIPPR.
CAS 31394‐54‐4 is assigned to mixed isoheptanes. As an individual isoheptane, 2‐methylhexane has its own CAS number. Based on the names alone, methylhexane and dimethylhexane are different materials. The table below provides the correct CAS numbers per DIPPR as well as the available parameters.
Suggested corrections in red for Table 4.2.2:
Chemical CAS No. Class I Division Group
Typea Flash Point (°C)
AIT (°C)
%LFL %UFL Vapor Density (Air = 1)
Vapor Pressureb (mm Hg)
Class I Zone Groupc
MIE (mJ)
MIC Ratio
MESG(mm)
Methyl acetate 79‐20‐9 D GAS I −10 454 3.1 16.0 2.6 IIA 1.08 0.99 Methyl acrylate 96‐33‐3 D GAS I −3 468 2.8 25.0 3.0 IIB 0.98 0.85 Methyl formate 107‐31‐3 D GAS I −19 449 4.5 23.0 2.1 IIA 0.94 Methyl isocyanate 624‐83‐9 D GAS I −15 534 5.3 26.0 2.0 IIA 1.21 Methylacetylene 74‐99‐7 Cd I GAS ‐81 340 1.7 57.3 1.38 4306 4360 0.11 Methylacetylene‐propadiene
27846‐30‐6 59355‐75‐8
C I GAS 3.4 10.8 1.48 IIB 0.74
Isobutane 75‐28‐5 Dg GAS ‐82 460 1.8 8.4 2.0 2639 IIA 0.95 2‐Methylpropane 75‐28‐5 Dg I GAS ‐82 460 1.8 8.4 2.0 2639 IIA 0.95 Isobutyl Alcohol 78‐83‐1 Dd I ‐40 416 1.2 10.9 2.5 10.5 IIA 0.92 0.98 Methyl‐1‐Propanol 78‐83‐1 Dd I ‐40 416 1.2 10.9 2.5 10.1 IIA 0.98 2‐Methyl‐1‐Propanol 78‐83‐1 Dd I ‐40 223
416 1.2 10.9 2.5 10.5 IIA 0.92 0.98
Methyl‐2‐Propanol 75‐65‐0 Dd I 10 360 2.4 8.0 2.6 42.2 2‐Methyl‐2‐Propanol 75‐65‐0 Dd I 10 478 2.4 8.0 2.6 42.2 Isopentane 78‐78‐4 Dg I ‐56 420 1.4 8.3 2.6 688.6 2‐Methylbutane 78‐78‐4 Dg I ‐56 420 1.4 8.3 2.6 688.6 Methanol 67‐56‐1 Dd I 12 385 6.0 36.0 1.1 126.3 IIA 0.14 0.82 0.92 ?? Methyl Alcohol 67‐56‐1 Dd I 12 385 6.0 36.0 1.1 126.3 IIA 0.14 0.82 0.91 ?? 2,3 Dimethylpentane 565‐59‐3 Dg I ‐12 335 1.1 6.7 3.5 211.7 68.8 2,3 Dimethylpentane 2‐Methylpentane
107‐83‐5 Dg I ‐33 335 306
1.2 7 3.0 211.7
IIA 1.00
Isohexane 107‐83‐5 Dg I ‐33 264 306
1.2 7 3.0 211.7 IIA 1.00
n‐Butyl Formal 110‐62‐3 C IIIA I 12 222 1.5 10.1 3.0 34.3 Valeraldehyde 110‐62‐3 C I 280 12 222 1.5 10.1 3.0 34.3 n‐Decaldehyde 112‐31‐2 C IIIA 85 189 0.77 5.8 5.4 0.09 0.13
Isodecaldehyde 112‐31‐2 3085‐26‐5
C IIIA 85 5.4 0.09
2‐Ethylhexaldehyde 123‐05‐7 C II 52 44 191 0.8 0.85
7.2 6.6 4.4 1.9
Isooctyl Aldehyde 123‐05‐7 C II 44 197 191
0.85 6.6 4.4 1.9
Neopentane 463‐82‐1 Dg GAS ‐65 450 1.4 8.3 2.6 1286 2‐Methylhexane 31394‐
54‐4 591‐76‐4
Dg I ‐10 280 1.0 6.0 3.5 65.8
2,3‐Dimethylhexane 31394‐54‐4 584‐94‐1
Dg I 7 438 315
1.0 5.9 3.9 23.5
Note: b) vapor pressure at 25 C, unless noted
The following materials are incorrectly listed as GAS, and they should be Class I materials in Table 4.4.2. Methyl acetate 79‐20‐9 GAS I BP is 57 C, Flashpoint is ‐13 C per DIPPR, ie Class IB liquid
Methyl acrylate 96‐33‐3 GAS I BP is 80 C, Flashpoint is ‐3 C per DIPPR, ie Class IB liquid
Methyl formate 107‐31‐3 GAS I BP is 32 C, Flashpoint is ‐26 C per DIPPR, ie Class IA liquid
Methyl isocyanate 624‐83‐9 GAS I BP is 39 C, Flashpoint is ‐24 C per DIPPR, ie Class IB liquid
The following materials is incorrectly listed as Class I material, and should be GAS in Table 4.4.2. Methylacetylene 74‐99‐7 I GAS BP is ‐23 C, Flashpoint is ‐81 C per DIPPR, ie Gas
Flashpoint ‐81 C Predicted Lower Flammability Limit 1.7 % vol Experimental Upper Flammability Limit 57.3 % vol Predicted Autoignition Temperature 340 °C Experimental Vapor Pressure at 25 C 4360 mmHg
The following materials are listed by more than one name and the properties are not all identical. These DIPPR properties are to establish which value to use and provide missing information: 2‐methylpropane 75‐28‐5 I GAS BP is ‐12 C, Flashpoint is ‐82 C per DIPPR, ie Gas
Lower Flammability Limit 1.8 % vol Experimental Upper Flammability Limit 8.4 % vol Experimental Autoignition Temperature 460 °C Experimental Vapor pressure at 25 C 2635 mmHg Correlation
2‐methyl‐1‐propanol 78‐83‐1
Vapor pressure at 25 C 10.5 mmHg Correlation (so use the 10.5 value as currently listed for isobutyl alcohol) 2‐methyl‐2‐propanol 75‐65‐0
Flash point 11.1 C (so use the 10 C value as currently listed for methyl‐2‐propanol) Autoignition 478 C (so use the 478 C value as currently listed for 2‐methyl‐2‐propanol)
2‐Methylbutane 78‐78‐4 BP is 28 C, Flashpoint is ‐55 C per DIPPR, ie Class IA liquid
Flashpoint ‐55 C (so use current ‐56 C value for both) Lower Flammability Limit 1.4 % vol Experimental Upper Flammability Limit 7.6 % vol Experimental (use current 8.3 vol% for both) Autoignition Temperature 420 °C Experimental
2‐Methylpentane 107‐83‐5 BP is 60 C, Flashpoint is ‐33 C per DIPPR, ie Class IB liquid
Flashpoint ‐33 C Predicted Lower Flammability Limit 1.2 % vol Experimental Upper Flammability Limit 7.0 % vol Experimental Autoignition Temperature 306 °C Experimental (neither of current values are close to this, so use this value) Vapor Pressure at 25 C 211.7 mmHg (so use current 211.6 value)
n‐Pentanal 110‐62‐3 BP is 102 C, Flashpoint is 12 C per DIPPR, ie Class IB liquid
Flashpoint 12 C Experimental (value of 280 for Valeraldehyde likely was in K) Lower Flammability Limit 1.5 % vol Predicted Upper Flammability Limit 10.1 % vol Predicted Autoignition Temperature 222 °C Experimental (neither of current values are close to this, so use this value) Vapor Pressure at 25 C 37.1 mmHg (so use current 34.3 value)
n‐decaldehyde 112‐31‐2 BP is 209 C, Flashpoint is 85 C (185 F) per DIPPR, ie Class IIIA liquid
Flashpoint 85 C Experimental (matches USCG value of 185 F for isodecaldehydes as well) Lower Flammability Limit 0.77 % vol Predicted Upper Flammability Limit 5.8 % vol Predicted Autoignition Temperature 189 °C Predicted Vapor Pressure at 25 C 0.13 mmHg (update n‐decaldehyde but use current 0.09 mmHg value for isodecaldehydes)
2‐Ethylhexaldehyde 123‐05‐7 BP is 163 C, Flashpoint is 44 C per DIPPR, ie Class II liquid
Flashpoint 44 C Experimental (update current value) Lower Flammability Limit 0.85 % vol Experimental (update current value) Upper Flammability Limit 6.6 % vol Experimental (update current value) Autoignition Temperature 190 °C Experimental (use current 191 C value) Vapor Pressure at 25 C 2.1 mmHg Correlation (use current 1.9 value)
Neopentane 463‐82‐1 BP is 9.5 C, Flashpoint is ‐68 C per DIPPR, ie GAS
2,3 Dimethylpentane 565‐59‐3 BP is 90 C, Flashpoint is ‐12 C per DIPPR, ie Class IB liquid
Flashpoint ‐12 C Predicted Lower Flammability Limit 1.1 % vol Experimental Upper Flammability Limit 6.7 % vol Experimental Autoignition Temperature 335 °C Experimental Vapor Pressure at 25 C 68.8 mmHg Correlation
2‐Methylhexane 591‐76‐4 BP is 90 C, Flashpoint is ‐10 C per DIPPR, ie Class IB liquid
Flashpoint ‐10 C Experimental Lower Flammability Limit 1.0 % vol Experimental Upper Flammability Limit 6.0 % vol Experimental Autoignition Temperature 280 °C Experimental (use current value) Vapor Pressure at 25 C 65.8 mmHg Correlation
2,3‐Dimethylhexane 584‐94‐1 BP is 116 C, Flashpoint is 7 C per DIPPR, ie Class IB liquid
Flashpoint 7 C Lower Flammability Limit 1.0 % vol Predicted Upper Flammability Limit 6.0 % vol Predicted Autoignition Temperature 315 °C Predicted Vapor Pressure at 25 C 23.5 mmHg Correlation
The following materials are listed twice, by the same or a similar name, but some different information: Below is a screenshot of the list. Methylpropane is also listed as isobutane. 2‐Methyl‐1‐propanol is also listed as isobutyl alcohol. While I agree with listing common synonyms, there is no reason to have both methyl‐x‐propanol and 2‐methyl‐x‐propanol, especially with different data and since 2‐methyl‐x‐propanol is the proper CAS name . I recommend deleting the 1st set of 3 entries completely, since the prefix‐2 is used for the methyl propanols. Recommended information, per DIPPR is shown in the table above.
Methanol and Methyl Alcohol have different values for MESG and we are missing info in Methyl Alcohol.
ISODECALDEHYDE IDA
CAUTIONARY RESPONSE INFORMATION
Common Synonyms Liquid Colorless Fruity odor
Floats on water.
Isodecaldehyde, mixed isomersTrimethylheptanals
Keep people away.Call fire department.Avoid contact with liquid.Notify local health and pollution control agencies.
Fire Combustible.Extinguish with dry chemical, foam, or carbon dioxide.Water may be ineffective on fire.Cool exposed containers with water.
Exposure CALL FOR MEDICAL AID.
LIQUIDIrritating to skin and eyes.Remove contaminated clothing and shoes.Flush affected areas with plenty of water.IF IN EYES, hold eyelids open and flush with plenty of water.
WaterPollution
Effect of low concentrations on aquatic life is unknown.Fouling to shoreline.May be dangerous if it enters water intakes.Notify local health and wildlife officials.Notify operators of nearby water intakes.
1. CORRECTIVE RESPONSE ACTIONSStop dischargeContainCollection Systems: SkimClean shore lineSalvage waterfowl
2. CHEMICAL DESIGNATIONS2.1 CG Compatibility Group: 19; Aldehyde2.2 Formula: C9H19CHO2.3 IMO/UN Designation: Not listed2.4 DOT ID No.: Not listed2.5 CAS Registry No.: Currently not available2.6 NAERG Guide No.: Not listed2.7 Standard Industrial Trade Classification:
51621
3. HEALTH HAZARDS
3.1 Personal Protective Equipment: Protective clothing; chemical goggles.3.2 Symptoms Following Exposure: Low general toxicity. Liquid may irritate eyes and skin.3.3 Treatment of Exposure: Wash eyes and skin with plenty of water for at least 15 min.3.4 TLV-TWA: Not listed.3.5 TLV-STEL: Not listed.3.6 TLV-Ceiling: Not listed.3.7 Toxicity by Ingestion: Currently not available3.8 Toxicity by Inhalation: Currently not available.3.9 Chronic Toxicity: Currently not available3.10 Vapor (Gas) Irritant Characteristics: Vapors cause a slight smarting of the eyes or respiratory
system if present in high concentrations. The effect is temporary.3.11 Liquid or Solid Characteristics: Minimum hazard. If spilled on clothing and allowed to remain, may
cause smarting and reddening of the skin.3.12 Odor Threshold: Currently not available3.13 IDLH Value: Not listed.3.14 OSHA PEL-TWA: Not listed.3.15 OSHA PEL-STEL: Not listed.3.16 OSHA PEL-Ceiling: Not listed.3.17 EPA AEGL: Not listed
4. FIRE HAZARDS
4.1 Flash Point: 185°F O.C.
4.2 Flammable Limits in Air: Currently notavailable
4.3 Fire Extinguishing Agents: Foam, drychemical, carbon dioxide
4.4 Fire Extinguishing Agents Not to BeUsed: Not pertinent
4.5 Special Hazards of CombustionProducts: Not pertinent
4.6 Behavior in Fire: Not pertinent
4.7 Auto Ignition Temperature: Currently notavailable
4.8 Electrical Hazards: Not pertinent
4.9 Burning Rate: Currently not available
4.10 Adiabatic Flame Temperature: Currentlynot available
4.11 Stoichometric Air to Fuel Ratio: 69.0(calc.)
4.12 Flame Temperature: Currently notavailable
4.13 Combustion Molar Ratio (Reactant toProduct): 20.0 (calc.)
4.14 Minimum Oxygen Concentration forCombustion (MOCC): Not listed
5. CHEMICAL REACTIVITY
5.1 Reactivity with Water: No reaction
5.2 Reactivity with Common Materials: Noreaction
5.3 Stability During Transport: Stable
5.4 Neutralizing Agents for Acids andCaustics: Not pertinent
5.5 Polymerization: Not pertinent
5.6 Inhibitor of Polymerization: Not pertinent
6. WATER POLLUTION
6.1 Aquatic Toxicity:Currently not available
6.2 Waterfowl Toxicity: Currently notavailable
6.3 Biological Oxygen Demand (BOD):Currently not available
6.4 Food Chain Concentration Potential:None
6.5 GESAMP Hazard Profile:Bioaccumulation: TDamage to living resources: 2Human Oral hazard: 1Human Contact hazard: IReduction of amenities: X
7. SHIPPING INFORMATION
7.1 Grades of Purity: Commercial
7.2 Storage Temperature: Ambient
7.3 Inert Atmosphere: No requirement
7.4 Venting: Open (flame arrester)
7.5 IMO Pollution Category: C
7.6 Ship Type: 3
7.7 Barge Hull Type: Currently not available
8. HAZARD CLASSIFICATIONS
8.1 49 CFR Category: Not listed
8.2 49 CFR Class: Not pertinent
8.3 49 CFR Package Group: Not listed.
8.4 Marine Pollutant: No
8.5 NFPA Hazard Classification:
Category ClassificationHealth Hazard (Blue).......... 0
Flammability (Red)............. 2
Instability (Yellow)............. 0
8.6 EPA Reportable Quantity: Not listed.
8.7 EPA Pollution Category: Not listed.
8.8 RCRA Waste Number: Not listed
8.9 EPA FWPCA List: Not listed
9. PHYSICAL & CHEMICALPROPERTIES
9.1 Physical State at 15° C and 1 atm: Liquid
9.2 Molecular Weight: 156.28
9.3 Boiling Point at 1 atm: Currently notavailable
9.4 Freezing Point: Currently not available
9.5 Critical Temperature: Not pertinent
9.6 Critical Pressure: Not pertinent
9.7 Specific Gravity: (est.) 0.84 at 15° (liquid)
9.8 Liquid Surface Tension: (est.) 20 dynes/cm= 0.02 N/m at 20°C
9.9 Liquid Water Interfacial Tension: (est.) 40dynes/cm = 0.04 N/m at 20°C
9.10 Vapor (Gas) Specific Gravity: Not pertinent
9.11 Ratio of Specific Heats of Vapor (Gas):Not pertinent
9.12 Latent Heat of Vaporization: Currently notavailable
9.13 Heat of Combustion: Currently not available
9.14 Heat of Decomposition: Not pertinent
9.15 Heat of Solution: Not pertinent
9.16 Heat of Polymerization: Not pertinent
9.17 Heat of Fusion: Currently not available
9.18 Limiting Value: Currently not available
9.19 Reid Vapor Pressure: 0.03 psia
NOTES
JUNE 1999
ISODECALDEHYDE IDA
9.20SATURATED LIQUID DENSITY
Temperature(degrees F)
Pounds per cubic foot
4142434445464748495051525354555657585960616263646566
52.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.43052.430
9.21LIQUID HEAT CAPACITY
Temperature(degrees F)
British thermal unit perpound-F
5051525354555657585960616263646566676869707172737475
0.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.4780.478
9.22LIQUID THERMAL CONDUCTIVITY
Temperature(degrees F)
British thermal unit inchper hour-square foot-F
5051525354555657585960616263646566676869707172737475
1.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.0401.040
9.23LIQUID VISCOSITY
Temperature(degrees F)
Centipoise
5051525354555657585960616263646566676869707172737475
9.3439.0888.8418.6028.3708.1457.9277.7167.5117.3127.1196.9326.7516.5756.4046.2396.0785.9225.7705.6235.4815.3425.2075.0774.9504.826
9.24SOLUBILITY IN WATER
Temperature(degrees F)
Pounds per 100 poundsof water
INSOLUBLE
9.25SATURATED VAPOR PRESSURE
Temperature(degrees F)
Pounds per square inch
180190200210220230240250260270280290300310320330340350360370380390400410420
0.2230.2810.3520.4370.5400.6630.8090.9811.1841.4211.6982.0182.3892.8153.3033.8604.4935.2116.0216.9347.9589.103
10.38011.80013.380
9.26SATURATED VAPOR DENSITY
Temperature(degrees F)
Pounds per cubic foot
180190200210220230240250260270280290300310320330340350360370380390400410420
0.005080.006310.007770.009510.011570.013990.016830.020130.023950.028360.033410.039200.045780.053240.061670.071160.081800.093690.106900.121700.138000.156000.175800.197600.22140
9.27IDEAL GAS HEAT CAPACITY
Temperature(degrees F)
British thermal unit perpound-F
100120140160180200220240260280300320340360380400420440460480500520540560580600
0.4210.4310.4410.4510.4610.4700.4790.4880.4970.5060.5140.5220.5300.5380.5460.5540.5610.5680.5750.5820.5890.5950.6020.6080.6140.620
JUNE 1999
Public Comment No. 3-NFPA 497-2019 [ Section No. 5.10.15 ]
5.10.15 Compressed Gas Cylinders (Lighter than or Equal to Air, including hydrogen).
(See Figure 5.10.15.)
Figure 5.10.15 Compressed Gas Cylinders (lighter than or equal to air, including hydrogen).
Additional Proposed Changes
File Name Description Approved
cylinder_hac.bmpPlease add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Statement of Problem and Substantiation for Public Comment
Please add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Related Item
• fr#5
Submitter Information Verification
Submitter Full Name: David Wechsler
Organization: Consultant
Street Address:
City:
State:
Zip:
Submittal Date: Thu May 09 15:47:35 EDT 2019
Committee: EEC-AAA
Committee Statement
CommitteeAction:
Rejected but see related SR
Resolution: SR-8-NFPA 497-2019
Statement: The figures have been changed to consistently show the density of materials to which thefigures apply.
National Fire Protection Association Report https://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPar...
11 of 15 12/10/2019, 1:59 PM
Public Comment No. 4-NFPA 497-2019 [ Section No. 5.10.16 ]
5.10.16 Compressed Gas Cylinders (Heavier Than Air).
(See Figure 5.10.16.)
Figure 5.10.16 Compressed Gas Cylinders (heavier than air).
Additional Proposed Changes
File Name Description Approved
cylinder_hac.bmpPlease add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Statement of Problem and Substantiation for Public Comment
Please add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Related Item
• fr#5
Submitter Information Verification
Submitter Full Name: David Wechsler
Organization: Consultant
Street Address:
City:
State:
Zip:
Submittal Date: Thu May 09 15:50:43 EDT 2019
Committee: EEC-AAA
Committee Statement
CommitteeAction:
Rejected but see related SR
Resolution: SR-8-NFPA 497-2019
Statement: The figures have been changed to consistently show the density of materials to which thefigures apply.
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Public Comment No. 5-NFPA 497-2019 [ Section No. 5.11.15 ]
5.11.15 Compressed Gas Cylinders (Lighter Than or Equal to Air, Including Hydrogen).
(See Figure 5.11.15.)
Figure 5.11.15 Compressed Gas Cylinders (lighter than or equal to air, including hydrogen).
Additional Proposed Changes
File Name Description Approved
cylinder_hac.bmpPlease add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Statement of Problem and Substantiation for Public Comment
Please add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Related Item
• FR#5
Submitter Information Verification
Submitter Full Name: David Wechsler
Organization: Consultant
Street Address:
City:
State:
Zip:
Submittal Date: Thu May 09 15:51:26 EDT 2019
Committee: EEC-AAA
Committee Statement
CommitteeAction:
Rejected but see related SR
Resolution: SR-9-NFPA 497-2019
Statement: The figures have been changed to consistently show the density of materials to which thefigures apply.
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Public Comment No. 6-NFPA 497-2019 [ Section No. 5.11.16 ]
5.11.16 Compressed Gas Cylinders (Heavier than Air).
(See Figure 5.11.16.)
Figure 5.11.16 Compressed Gas Cylinders (heavier than air).
Additional Proposed Changes
File Name Description Approved
cylinder_hac.bmpPlease add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Statement of Problem and Substantiation for Public Comment
Please add to the figure the statement of condition for this figure - and add this directly to the figure: For Heavier than air gas, or For Lighter than air gas { as applicable- used this comment for these sets of figures}
Related Item
• FR#5
Submitter Information Verification
Submitter Full Name: David Wechsler
Organization: Consultant
Street Address:
City:
State:
Zip:
Submittal Date: Thu May 09 15:51:47 EDT 2019
Committee: EEC-AAA
Committee Statement
CommitteeAction:
Rejected but see related SR
Resolution: SR-9-NFPA 497-2019
Statement: The figures have been changed to consistently show the density of materials to which thefigures apply.
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Public Comment No. 2-NFPA 497-2019 [ Section No. C.2.1 ]
C.2.1 ASHRAE Publications.
ASHRAE, Inc., 1791 Tullie Circle, NE, Atlanta, GA 30329-2305.
ASHRAE Standard 34, Designation and Classification of Refrigerants , 2016.
Statement of Problem and Substantiation for Public Comment
In FR-1, the committee noted that ASHRAE 34 is not referenced in NFPA 497 and deleted the reference to that standard in Section 2.3.2. The update made by FR-17 therefore appears to be in error. The reference should have been deleted, rather than updated.
Related Item
• FR-1 • FR-17
Submitter Information Verification
Submitter Full Name: Jeffrey Shapiro
Organization: International Code Consultants
Affiliation: International Institute of Ammonia Refrigeration
Street Address:
City:
State:
Zip:
Submittal Date: Wed May 08 18:22:32 EDT 2019
Committee: EEC-AAA
Committee Statement
Committee Action: Accepted
Resolution: SR-6-NFPA 497-2019
Statement: The reference does not appear in the document and does not exist.
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