202. Special precautions for nitro and amido processes.
- In a nitro or amido process-(a)If crystallized substances are broken or any liquor agitated by hand, means shall be taken to prevent, as far as practicable, the escape or dust or fume in to the air of any place in which any person in employed. The handles of all implements used in the operations shall be cleansed daily.(b)Cartridges shall not be filled by hand except by means of suitable scoop.(c)Every drying stove shall be efficiently ventilated to the outside air in such a manner that hot air from the stove shall not be drawn into any work-room(d)No person shall enter a stove to remove the contents until a free current of air has been passed through it.(e)Every vessel containing nitro or amido derivates of phenol or benzene or its homologues shall, if steam is passed into or around it, or if the temperature of the contents be at or above the temperature of boiling water, be covered in such a way that steam or vapour shall be discharged into the open air at a height of not less than 25 feet from the ground or the working platform, and at a point where it cannot be blown back again into the work-room.
