- Chemical works means any factory or such parts of any factory as are named in Schedule 1 to these Rules."Breathing apparatus" means -(1)a helmet of face piece with necessary connections by means of which a person using it in a poisonous, as phyxiating or irritant atmosphere breathes ordinary air, or(2)any other suitable apparatus approved in writing by the Chief Inspector."Life-belt" means a belt made of leather or other suitable material which can be securely fastened round the body, with a suitable length of rope attached to it, each of which is sufficiently strong to sustain the weight of a man."Efficient exhaust draught" means localized ventilation effected by mechanical other means for the removal or gas, vapour, fume or dust to prevent if from escaping into the air of any place in which work is carried on."Surgeon" means a Certifying Surgeon appointed under section 10 of the Factories Act, 1948. "Suspension" means suspension by written certificate in the Health Register, signed by the Surgeon from employment in any process mentioned in the certificate."Bleaching powder" means the bleaching powder commonly called chloride of lime."Chlorate" means chlorate or perchlorate."Caustic" means hydroxide of potassium or sodium."Caustic pot" means a metal pot fixed over a furnace or flue and surrounded by brickwork such as is commonly used for concentrating caustic liquor, whether such pot be used for concentrating or boiling caustic or other liquor."Chrome process" means the manufacture of chromate or bichromate of potassium or sodium., or the manipulation, movement or other treatment of these substances in connection with their manufacture."Nitro or amino process" means the manufacture of nitro or amino derivatives of phenol and of benzene or its homologues, and the making or explosives with the use of any of these substances.
