QPS - Explosion Research Ltd

Hazardous Location Certification for Canada and the USA

 

 

Classification of Gasses (With Maximum Experimental Safe Gap (MESG))

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Acetaldehyde Group IIA Group C

Acetic Acid Group IIA

Acetone Group IIA Group D 1.02mm

Acetonitrile Group IIA Group D 1.50mm

Acetyl Chloride Group IIA

Acetylacetone Group IIA

Acetylene Group IIC Group A    0.37mm

Acrolein Group IIB Group B

Acrylaldehyde Group IIB

Acrylonitrile Group IIB Group D 0.87mm

Allyl Alcohol Group C

Allyl Chloride Group IIA Group D

Aminoethanol Group IIA

Ammonia Group IIA Group D 3.17mm

Amphetamine Group IIA

Amyl Acetate Group IIA Group D 0.99mm

Amyl Methyl Ketone Group IIA

Anilene Group IIA

Benzene Group IIA Group D

Benzotriflouride Group IIA

Benzyl Chloride Group IIA

Bromobutane Group IIA

Bromoethane Group IIA

Butadiene Group IIB Group B(C)  0.79mm

Butane Group IIA Group D 0.98mm

Butanol Group IIA Group D 0.94mm

Butyl Acetate Group IIA Group D 1.02mm

Butyl Glycolate Group IIB 0.88mm

Butyl Mercaptan Group C

Butyl Methyl Ketone Group IIA

Butylamine Group IIA Group D

Butylene Group D

Butraldehyde Group D

Carbon Disulphide Group IIC None No Quotation 0.34mm

Carbon Monoxide Group IIA Group C  0.94mm

Chlorobenzene Group IIA Group D

Chlorobutane Group IIA

Chloroethane Group IIA

Chloroethanol Group IIA

Chloroethylene Group IIA

Chloromethane Group IIA

Chloroprene Group D

Chloropropane Group IIA

Coal Tar Naptha Group IIA

Coke Oven Gas Group IIBCresol Group IIA

Crotonaldehyde Group IIB Group C

Cumene Group IIA Group D

Cyclobutane Group IIA

Cycloheptane Group IIA

Cyclohexane Group IIA Group D 0.94mm

Cyclohexanol Group IIA

Cyclohexanone Group IIA 0.95mm

Cyclohexene Group D

Cyclohexlamine Group IIA

Cyclopentane Group IIA

Cyclopropane Group IIB Group D  Maximum Experimental Safe Gap (MESG) Group D

Cymene Group IIA

Decahydronaphthanlene Group IIA

Decane Group IIA 1.02mm

Di-isobutylene Group D

Di-isoprophylmine Group C

Di-n-propylamine Group C

Diacetone Alcohol Group IIA

Diamincethane Group IIA

Dibutyl Ether Group IIB 0.86mm

Dichlorobenzene Group IIA

Dichloroethane Group IIA Group D 1.80mm

Dichloroethylene Group IIA Group D

Dicyclopentadiene Group C

Diethyl Ether Group IIB Group C 0.87mm

Diathylamine Group IIA Group C  Maximum Experimental Safe Gap (MESG) Group C

Diethylaminoethanol Group IIA

Dimethyl Ether Group IIB 0.84mm

Dimethylamine Group IIA Group C  Maximum Experimental Safe Gap (MESG) Group C

Dimethylaniline Group IIA

Dioxane Group IIB Group C 0.70mm

Dioxolane Group IIB

Dipropylether Group IIA

Epichlorohydrin Group IIB Group C

Epoxypropane Group IIB

Ethane Group IIA Group D 0.91mm

Ethanethiol Group IIA

Ethanol Group IIA Group D 0.89mm

Ethanolamine Group IIA

Ethyl Acetate Group IIA Group D 0.99mm

Ethyl Acetoacetate Group IIA

Ethyl Acrylate Group IIB Group D  Maximum Experimental Safe Gap (MESG) Group D 0.86mm

Ethyl Benzene Group IIA Group D

Ethyl Chloride Group D

Ethyl Formate Group IIA Group D

Ethyl Mercaptan Group IIA Group C  Maximum Experimental Safe Gap (MESG) Group D

Ethyl Methacrylate Group IIA

Ethyl Methyl Ether Group IIB

Ethyl Methyl Ketone Group IIA Group D

Ethyl Morpholine Group C

Ethyl Nitrate Group IIC

Ethyl Nitrite Group IIA 0.96mm

Ethylamine Group D

Ethylbenzene Group IIA Group D

Ethylcyclobutane Group IIA

Ethylcyclohexane Group IIA

Ethylcyclopentane Group IIA

Ethylene Group IIB Group C 0.65mm

Ethylene Dichloride Group D

Ethylene Oxide Group IIB Group B  Maximum Experimental Safe Gap (MESG) Group B 0.59mm

Ethylenediamine Group D

Ethylenimine Group C

Formaldehyde (gas) Group B

Furan Group IIB

Gasoline Group D

Heptane Group IIA Group D 0.91mm

Heptanol Group IIA 0.94mm

Heptane Group D

Hexane Group IIA Group D 0.93mm

Hexanol Group IIA 0.94mm

Hexanone Group D

Hexanes Group D

Hydroacetic Acid Group IIB

Hydrogen Group IIC Group B 0.29mm

Hydrogen Cyanide Group IIB Group C

Hydrogen Selenide Group C

Hydrogen Sulfide Group C

Isomyl Acetate Group D

Isobutyl Acrylate Group D

Isobutyraldehyde Group D

Isoprene Group D

Isopropenylbenzene Group IIA

Isopropyl Acetate Group D

Isopropyl Ether Group D 0.94mm

Isopropyl Glycidyl Ether Group C

Isopropyl Nitrate Group IIB

Isopropylamine Group D

Kerosene Group IIA

LPG Gas Group D

Mesityl Oxide Group D

Metaldehyde Group IIA

Methane Group IIA Group D 1.14mm

Methanol Group IIA Group D 0.92mm

Methyl Acetate Group IIA Group D 0.99mm

Methyl Acrylate Group IIB Group D  Maximum Experimental Safe Gap (MESG) Group D 0.85mm

Methyl Ether Group C

Methyl Ethyl Ketone Group IIA Group D 0.92mm

Methyl Formal Group C

Methyl Formate Group IIA Group D

Methyl Isobutyl Ketone Group D 0.98mm

Methyl Isocyanate Group D

Methyl Mercaptan Group C

Methyl Methacrylate Group IIA Group D

Methyl Propanol Group D

Methylacetylene Group C

Methylamine Group IIA Group D

Methylcyclobutane Group IIA

Methylcyclohexane Group IIA Group D

Methylcyclohexanol Group IIA

Methylcyclopentane Group IIA

Methylene Chloride Group IIA

Methylstyrene Group IIA

Monomethyl Hydrazine Group C

n-Propyl Ether Group C

Naphtha Group IIA Group D

Naptha (Petroleum) Group IIA Group D

Napthalene Group IIA

Nitroethane Group IIA Group C  Maximum Experimental Safe Gap (MESG) Group C

Nitromethane Group IIA Group C  Maximum Experimental Safe Gap (MESG) Group C

Nitropropane Group C

NN-Dimethylanilene Group IIA

Nonane Group IIA Group D

Nonanol Group IIA

Nonene Group D

Octane Group IIA Group D 0.94mm

Octanol Group IIA

Octene Group D

Pentane Group IIA Group D 0.93mm

Pentane-2.4-Dione Group IIA

Pentanol Group IIA Group D 0.99mm

Pentanone Group D

Pentene Group D

Petroleum Naphtha Group IIA Group D

Phenol Group IIA

Propane Group IIA Group D 0.92mm

Propane-Thiol Group IIA

Propanol Group IIA Group D

Propene Group IIA

Propionaldehyde Group C

Propyl Acetate Group IIA Group D 1.04mm

Propyl Ether Group C

Propyl Methyl Ketone Group IIA

Propyl-Mercaptan Group IIA

Propyl Nitrate Group B

Propylamine Group IIA

Propylene Group IIA Group D 0.91mm

Propylene Dichloride Group D

Propylene Oxide Group B(C)  Maximum Experimental Safe Gap (MESG) Group C 0.70mm

Propyne Group IIB

Pyridine Group IIA Group D

Styrene Group IIA Group D

Tetrafluoroethylene Group IIB

Tetrahydrofuran Group IIB Group C

Tetrahydrofurfuryl Alcohol Group IIB

Tetrahydrothiophene Group IIA

Thiophene Group IIA

Toluene Group IIA Group D

Toluidine Group IIA

Triethylamine Group IIA Group C  Maximum Experimental Safe Gap (MESG) Group C

Trifluorotoluene Group IIA

Trimethylamine Group IIA

Trimethylbenzene Group IIA

Trioxane Group IIB

Turpentine Group IIA Group D

UDMH Group C

Unsym. Dimethyl

Hydrazine

Group C

Valeraldehyde Group C

Vinyl Acetate Group IIA Group D 0.94mm

Vinyl Chloride Group D 0.99mm

Vinylidene Chloride Group D 3.91mm

Xylene Group IIA Group D