1983 Ed.] Dangerous Goods (General) Regulations [CAP. 295
Gas
Quantity for which licence not required
(1)
(2)
Label
(3)
Helium
1 cylinder
Hydrogen
1 cylinder
B3
Krypton
1 cylinder
Methane
1 cylinder
B3
Neon
1 cylinder
Nitrogen
1 cylinder
Oxygen
2 cylinders
Class 2-Liquefied gases
Air, liquid
25 L
Ammonia, Anhydrous
1 cylinder
D1
Boron Trichloride
Butadiene
1 cylinder
B3
Carbon Dioxide
1 cylinder (unlimited when intended for use with fire extinguishers)
Chlorine
Chlorotrifluoromethane (Arcton 13, Freon 13)
2 cylinders
D1
Cyanogen
B3 and D1
Cyclopropane
1 cylinder
B3
Dichlorodifluoromethane (Arcton 12, Freon 12)
2 cylinders
Dichlorodifluoromethane/Trichlorofluoromethane Mixtures (Arcton 12/11, Freon 12/11)
2 cylinders
Dichlorofluoromethane (Arcton 21, Freon 21)
2 cylinders
Dichlorotetrafluoroethane (Arcton 114, Freon 114)
2 cylinders
Dimethyl Ether
Dimethylamine
Ethane
Ethyl Chloride
Ethylene
1 cylinder or 10 kg
B3
Ethylene Oxide
1 cylinder or 10 kg
B3
Ethylene Oxide (in a concentration not greater than 12% by weight) mixed with an inactive carrier gas (such as dichlorodifluoromethane)
Hydrogen Cyanide (Hydrocyanic Acid)
D
Hydrogen Chloride (Hydrochloric Acid, Anhydrous)
D1
Hydrogen Fluoride (Hydrofluoric Acid, Anhydrous)
B3 and D1
Hydrogen Sulphide (Sulphuretted Hydrogen)
B4I
[Subsidiary]
L.N. 40/73.