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Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

SUBDIVISION OFGASES

AND THEIRCLASSIFICATION

RELATIVE TOIGNITION

TEMPERATURE

Following tables list gases which are subdivided

by hazardous area classification according to

ignition temperature and temperature class.

The group classifications in parentheses are

North American classifications.

Group I has no equivalent in North America.

202 TECHNOLOGY FOR SAFETY

Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

HY D RO C A R B O N SIgnition

Temperature (C)Temperature

Class

365

259380250205515210260260215233538

265

205210285466

T2

T3T2T3T3T1T3T3T3T3T3T1

T3

T3T3T3T1

Group IMETHANE (Mines)

Group II, A (Class I, Group D)Representative Gas PROPANE

Al k a n e sButaneCyclobutaneCycloheptaneCyclohexaneCyclopentaneDecahydronaphthaleneDecaneEthaneEthyl cyclobutaneEthyl cyclohexaneEthyl cyclopentaneHeptaneHexaneMethaneMethyl cyclobutaneMethyl cyclohexaneMethyl cyclopentaneNonaneOctanePentanePropane

203TECHNOLOGY FOR SAFETY

Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

T1T2T2T2T1T1T1T1

HY D RO C A R B O N SIgnition

Temperature (C)Temperature

Class

410

490

T2

T1

560420435430528535470465

T3T2

T3 - T2T1T3T3T3T3T3

250330

210 - 350

272290232250

Group II, A (Class I, Group D)Representative Gas PROPANE

A romatichydrocarbons

Methyl styreneStyrene

A lk e n e sPropylene

BenzenoidsBenzeneCumeneCymeneEthylbenzeneNaphthaleneTolueneTrimethylbenzeneXylene

Hydrocarbonmixtures

Benzene (motors)Combustible oilDiesel oilKeroseneMethane (industrial)Naphtha (from carbon)Naphtha (from petrol.)Naphtha solventPetroleum (including gasoline)Terabenzene

204 TECHNOLOGY FOR SAFETY

Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

OX Y G E N CO M P O S I T I O N SIgnition

Temperature (C)Oxides

(including esters)Temperature

Class

605

T1

T2T1T3T1T2

T1T3

T3T1T2

340555300600423

455295

300606371

427 T2

143

T4

Group II, A (Class I, Group D)Representative Gas PROPANE

Carbon monoxideDipropylether

Alcohols &Phenols

ButanolCresolCyclohexanolDiacetone alcoholEthanolHeptanolHexanolMathanolMethyl cyclohexanolNonanolOctanolPentanolPhenolPropanol

A lk a n e sAcetic acid

AldehydesAcetaldehydeMethaldehyde

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Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

KetonesAcetalacetoneAcetoneAmyl methyl ketoneButyl methyl ketoneCyclohexanoneEthyl methyl ketonePropyl methyl ketone

OX Y G E N CO M P O S I T I O N SIgnition

Temperature (C)Temperature

Class

340353533530419505505

T2T1T1T1T2T1T1

EstersAmyl acetateButyl acetateEthyl acetateEthyl acetyl acetateEthyl formateEthyl methyl acrylateMethyl acetateMethyl formateMethyl methyl acrylatePropyl acetateVinyl acetate

T2T2T2T3T2

T2T2T2T2T3

380370427295440

475449421430385

Group II, A (Class I, Group D)Representative Gas PROPANE

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Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

HA L O G E N CO M P O S I T I O N SIgnition

Temperature (C)Temperature

Class

390413

T2T2

Without Oxygen

Allyl chorideBenzotrifluorideBenzyl chlorideBromobutaneBromoethaneChlorobenzeneChlorobutaneChloroethaneChloethylene (vinyl chloride)ChloromethaneChloropropaneDichlorobenzeneDichloroethaneDichloroethyleneDichloropropaneMethylene chloride

T2

T1T3T1T1T1T2T1T1T1T1T2T1T1T1

392

585265511637460410472625520640413460557458

Group II, A (Class I, Group D)Representative Gas PROPANE

WithOxygen

AcetychlorideChloroethanol

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Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

AcetonitrileAmmoniaEthylnitrileNitroethaneNitromethane

SU L P H U R CO M P O S I T I O N STemperature

Class

T3

NI T RO G E N CO M P O S I T I O N SIgnition

Temperature (C)Temperature

Class

T1

T2T2

Group II, A (Class I, Group D)Representative Gas PROPANE

Group II, A (Class I, Group D)Representative Gas PROPANE

IgnitionTemperature (C)

299

Ethyl mercaptanPropyl mercaptanTetrahydrothiopheneTiophene

630

410412

208 TECHNOLOGY FOR SAFETY

Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

AminesAmphetamineAnilineButylamineCyclohexylamineDiaminoethaneDiethylamineDiethylaminoethanolDimethylamineDimethylanilineMethylamineMonoethylaminePyridinePropylamineToluidineTriethylamineTrimethylamine

NI T RO G E N CO M P O S I T I O N SIgnition

Temperature (C)Temperature

Class

-

538312293385312

-

400371430

-

482320482

-

190

-

T1T2T3T2T2-

T2T2T2-

T1T2T1-

T4

Group II, A (Class I, Group D)Representative Gas PROPANE

AminesAmphetamineAnilineButylamineCyclohexylamineDiaminoethaneDiethylamineDiethylaminoethanolDimethylamineDimethylanilineMethylamineMonoethylaminePyridinePropylamineToluidineTriethylamineTrimethylamine

209TECHNOLOGY FOR SAFETY

Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

HY D RO C A R B O N SIgnition

Temperature (C)Temperature

Class

430498425

T2T1T2

NI T RO G E N CO M P O S I T I O N SIgnition

Temperature (C)Temperature

Class

481535175

T1T1T4

Group II, B (Class I, Group C)Representative Gas ETHYLENE

Group II, B (Class I, Group C)Representative Gas ETHYLENE

Allylene (propin)ButadineCyclopropaneEthylene

AcrylonitrileHydrocyanic acidIsopropylnitrate

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Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

OX Y G E N CO M P O S I T I O N S

Group II, B (Class I, Group C)Representative Gas ETHYLENE

278

185232379

430

170190430

190224282414

T3

T4T3T2

T2

T4T4T2

T4T3T3T2

IgnitionTemperature (C)

Temperature Class

AcroleinButyl ester of acidButyl etherCrotonaldehydeDioxaneDioxolaneEpoxypropaneEthyl acrylateEthyl etherEthyl methyl etherEthylene oxide FuranHydroaceticMethyl acrylateMethyl etherTetrahydrofuranTetrahydrofurfuryl alcoholTrioxane

211TECHNOLOGY FOR SAFETY

Appendix 6 IGNITION TEMPERATURE AND GASES SUBDIVISION

AcetyleneCarbon disulphideEthyl nitrateHydrogenWater gas

MI X T U R E S

SU L P H U R CO M P O S I T I O N S

HA L O G E N CO M P O S I T I O N S

T3T5T6T1T1

Group II, B (Class I, Group C)Representative Gas ETHYLENE

Group II, B (Class I, Group C)Representative Gas ETHYLENE

Group II, B (Class I, Group C)Representative Gas ETHYLENE

Group II, C (Class I, Group A or B)Representative Gas HYDROGEN

City gasCoke oven gas

IgnitionTemperature (C)

Temperature Class

560

T1

Sulphurous hydrogen

IgnitionTemperature (C)

Temperature Class

260 T3

Epichlorodine (propane, 1 chloro, 2, 3 epoxy)Tetrafluoroethylene

IgnitionTemperature (C)

Temperature Class

Temperature Class

IgnitionTemperature (C)

300102

560600