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THE HONG KONG GOVERNMENT GAZETTE, MARCH 1, 1940.
Nitric acid (Aqua fortis).
Nitric acid (Impure).
Nitric acid and sulphuric acid mixtures.
Phosphoric acid.
Pyrogallic acid.
Sodium bisulphite solution.
Sodium metabe-sulphite.
Sulphur mono-chloride.
Sulphuric acid (Impure).
Sulphuric acid (Oleum and Nordhausen).
Sulphuric acid (Vitriol).
Sulphurous acid.
Sulphuryl chloride.
Thionyl chloride.
Tin tetrachloride (Anhydrous).
Titanium tetrachloride.
Any other corrosive substance.
CATEGORY 6.
SUBSTANCES WHICH GIVE OFF A POISONOUS GAS Or Vapour.
Ammonia (liquid).
Aniline oil.
Bromine.
Carbon tetrachloride.
Chloroform.
Chloropicrin.
Hydrocyanic acid solution.
Leadtetraethyl.
Nitro benzol (mirbane oil).
Potassium cyanides.
Sodium cyanides.
Any other substance which gives off a poisonous gas or
vapour.
CATEGORY 7.
STRONG SUPPORTERS OF COMBUSTION.
Ammonium bichromate.
Ammonium nitrate.
Ammonium perchlorate.
Ammonium permanganate.
Any other chlorates or perchlorates.
Barium chlorate.
Barium nitrate.
Barium peroxide.
Bichromates.
Bromates.
Chlorate of potassium.
Hydrogen peroxide.
Nitrates.
Peroxides.
Potassium bichromates.
Potassium bromate.
Potassium nitrate (saltpetre).
Potassium perchlorate.
Sodium chlorate.
Sodium monoxide.
Sodium nitrate (Chile saltpetre).
Sodium peroxide.
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