SCHEDULE VI Manufacture and treatment of lead and certain compounds of lead 1. Exemptions.- Where the Chief Inspector is satisfied that all or any of the provisions of this Schedule are not necessary for the protection of the persons employed he may by certificate in writing exempt any factory from all or any of such provisions, subject to such conditions as he may specify therein. 2. Definition.- For the purposes of this Schedule- (a) "Lead Compound" means any compound of lead other than galena which when treated in the manner described below 'yields to an aqueous solution of hydrochloric acid, a quantity of soluble lead compound exceeding, when calculated as lead monoxide, five percent, of the dry weight of the portion taken for analysis. In the case of paints and similar prod and other mixtures containing oil or fat the "dry weight" means the dry weight of the material remaining after the substance has been thoroughly mixed and treated with suitable solvents to remove oil, fats, varnish or other media. The method of treatment shall be as follows:- A weighed quantity of the material which has been dried at 100°C and thoroughly mixed shall be continuously shaken for one hour, at the common temperature with 1,000 times its weight of an aqueous solution of hydrochloric acid containing 0.25 per cent by weight of hydrogen chloride. This solution shall thereafter be allowed to stand for one hour and then filtered. The lead salt contained in the clear filtrate shall then be precipitated as lead sulphide and weighted as lead sulphate. (b) "Efficient exhaust draught" means, localised ventilation effected by the heat or mechanical means, for the removal of gas vapour,dust or fumes so as to prevent them (as far as practicable under the atmospheric conditions usually prevailing) from escaping in to the air on anyplace in which work is carried on. No draught shall deemed efficient which fails to remove smoke generated at the point where such gas, vapour, fumes or dust originate. l3. Application.- This Schedule shall apply to all factories or parts of factories in which any of the following operations are carried on:- (a) Work at a furnace where the reduction of treatment of zinc or lead ores is carried on. (b) The manipulation, treatment or reduction of ashes containing lead, the desilversing of lead or the melting of scrap lead or zinc. (c) The manufacture of solder or alloys containing more than ten per cent of lead. (d) The manufacture of any oxide carbonate, sulphate, chromate acetate, nitrate or silicate of lead. (e) Handling or mixing of lead tetra-ethyl. (f) Any other operation involving the use of a lead compound. (g) The cleaning of work-rooms where any of the operations aforesaid are carried on. 4. Prohibition relating to women and young persons.- No woman or young person shall be employed or permitted to work in any of the operations specified in paragraph 3. 5. Requirements to be observed.- No person shall be employed or permitted to work in any process involving the use of lead compounds if the process is such that dust or fume from a lead compound is produced therein, or the persons employed therein are liable to be splashed with any lead compound in the course of their employment unless the provisions of paragraph 6 to 14 are complied with. 6. Exhaust draught.- Where dust, fume, gas or vapour is produced in the process, provision shall be made for removing them by means of an efficient exhaust draught so contrived as to operate on the dust, fume, gas or vapour as possible to the point of origin. 7. Certificate of fitness.- A person medically examined under paragraph 8 and found fit for employment shall be granted by a Certifying Surgeon a certificate of fitness in Form No.28 and such certificate shall be in the custody of the Manager of the factory. The certificate shalbe kept readily available for inspection by any Inspector and person granted such a certificate shall carry with him, while at work, a token giving reference to such certificate. 8. Medical Examination.- (1) The person so employed shall be medically examined by a Certifying Surgeon within 14 days of his first employment, in such process and thereafter shall be examined by the Certifying Surgeon at intervals of not more than three months, and a record of such examinations shall be entered by the Certifying Surgeon in the special certificate of fitness granted under paragraph 7. (2) If at any time the Certifying Surgeon is of opinion that any person is no longer fit for employment on the grounds that continuance therein would involve special danger to health, he shall cancel the special certificate of fitness of that person. (3) No person whose speical certificate of fitness has been cancelled shall be employed unless the Certifying Surgeon, after re-examination, again certifies him to be fit for employment. 9. Food, drinks, etc. prohibited in work-rooms.- No food, drink, pan and supari or tobacco shall be brought into or consumed by any worker in any work-room in which the process is carried on and no person shall remain in any such room during intervals for meals or rest. 10. Protective clothing.- Suitable protective overalls and head coverings shall be provided, maintained and kept clean by the factory occupier and such overalls and head covering shall be worn by the persons employed. 11. Cleanliness of work-rooms, tools etc..- The rooms in which the persons are employed and all tools and apparatus used by them shall be kept in a clean state. 12. Washing facilities.- (1) The occupier shall provide and maintain for the use of all persons employed suitable washing facilities consisting of :- (a) a trough with a smooth impervious surface fitted with a waste pipe without plugs and of sufficient length to allow at least two feet for every ten persons employed at anyone time, and having a constant supply of clean water from taps of jets above the trough at intervals of not more than two feet; or (b) at least one wash-basin for every ten persons employed at anyone : time, fitted with a waste pipe and plug and having constant supply of clean water; together with, in either case, a sufficient supply of nail brushes, soap or other suitable cleansing materials and clean towels. (2) The facilities so provided shall be placed under the charge of a responsible person and shall be kept clean. 13. Mess-room or Canteen.- The occupier shall provide and maintain for the use of the persons employed suitable adequate arrangements for taking their meals. The arrangements shall consist of the use of a room separate from any workroom which shall be furnished with sufficient tables and benches, and unless a canteen serving hot meals is to be provided, with adequate means of warming food. The room shall be adequately ventilated by the circulation of fresh air, shall be placed under the charge of a responsible person and shall be kept clean. 14. Cloak-room.- The occupier shall provide and maintain for the use of persons employed suitable accommodation for clothing not worn during working hours, and for the drying of wet clothing. | 
