Sch 4Class 1, 2 and 3 substances

Schedule 4—Class 1, 2 and 3 substances

Regulation 4

Class 1 substances

Carbon monoxide

Lead

Nitrogen dioxide

Particles as PM10

Sulfur dioxide

Class 2 substances

Acetaldehyde

Acetic acid

Acetone

Acrylic acid

Ammonia

Aniline

Antimony and compounds

Asphalt (petroleum) fumes

Barium (soluble compound)

Biphenyl

Bromochloromethane

Bromoform (tribromomethane)

Bromotrifluoromethane

n-Butanol

n-Butyl acetate

Butyl acrylate

Butyl mercaptan

Carbon black

Carbon disulphide

Carbon tetrachloride (tetrachloromethane)

Chlorine

Chlorine dioxide

Chlorobenzene

Chloroform (Trichloromethane)

Chloromethane (methyl chloride)

Chromium (III) compounds

Copper dusts and mists

Copper fume

Cotton dust (raw)

Crotonaldehyde

Cumene (isopropyl benzene)

Cyanide (as CN)

Cyclohexane

Cyclohexanol

Cyclohexanone

Diacetone alcohol

o-Dichlorobenzene

1,2-Dichloroethylene

Dichlorvos

Diethylamine

Dimethylamine

Dinitrobenzene (all isomers)

Dinitrotoluene

Diphenyl ether

Ethanol

Ethanolamine

Ethyl acetate

Ethyl acrylate

Ethyl butyl ketone

Ethyl chloride (chloroethane)

Ethylbenzene

Ethylene glycol (vapour)

Fluoride

Fluorine

Formaldehyde

n-Hexane

2-Hexanone

Hydrogen chloride

Hydrogen sulfide

Iron oxide fume

Magnesium oxide fume

Maleic anhydride

Manganese and compounds

Mercury (inorganic)

Mercury (organic)

Methanol

Methyl acrylate