1. Definitions - For the purpose of this schedule -
(a) “efficient exhaust draught” means localised ventilation effected by 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 into the air of any place in which work is carried on. No draught shall be deemed efficient which fails to remove smoke generated at the point where such gas, vapour, fume, or dust originate;
(b) “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 soluble lead compound exceeding, when calculated as lead monoxide, five percent of the dry weight of the portion taken analysis.
The method of treatment shall be as follows :-
A weighed quantity of the material which has been dried at 100 degrees centigrade 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 filterate shall then be precipitated as lead sulphide and weighed as lead sulphate.
2. Exhaust draught - The following processes shall not be carried on except under an efficient exhaust draught or such other conditions as may be approved by the Chief Inspector :-
(a) the mixing of raw materials to form a “Bator”;
(b) the dry grinding, glazing and polishing of glass or any article of glass;
(c) all processes in which hydrofluoric acid fumes or ammonical vapours are given off;
(d) all processes in the making of furnace moulds or “pots” including the grinding or crushing of used “pots”; and
(e) all processes involving the use of a dry lead compound.
3. Prohibition relating to women and young person - No woman or young person shall be employed or permitted to work in any of the operations specified in paragraph 2 or at any place where such operations are carried on.
4. Floor and work-benches - The floor and work-benches of every room in which a dry compound of lead is manipulated or in which any process is carried on giving off silica dust shall be kept moist and shall comply with the following requirements :-
(a) the floor shall be -
(i) of cement or similar material so as to be smooth and impervious to water;
(ii) maintained in sound condition; and
(iii) cleansed daily after being thoroughly spread with water at a time when no other work is being carried on the room; and
(b) the work-benches shall -
(i) have a smooth surface and be maintained in sound condition, and
(ii) cleansed daily either after being thoroughly damped or by means of a suction cleaning apparatus at a time when no other work is being carried on thereat.
5. Use of hydrofluoric acid - The following provisions shall apply to rooms in which glass is treated with hydrofluoric acid :-
(a) there shall be inlets and outlets of adequate size so as to secure and maintain efficient ventilation in all parts of the room;
(b) the floor shall be covered with guttaparcha and be tight and shall slope gently down to a covered drain;
(c) the workplaces shall be so enclosed in projecting hoods that openings required for the bringing in the objects to be treated shall be as small as practicable; and
(d) the efficient exhaust draught shall be so contrived that the gases are exhausted downwards.
6. Storage and transport of hydrofluoric acid - Hydrofluoric acid shall not be stored or transported except in cylinders or receptacles made of lead or rubber.
7. Blow pipes - Every glass blower shall be provided with a separate blow pipe bearing the distinguishing mark of the person to whom it is issued and suitable facilities shall be readily available to every glass blower for sterilising his blow pipe.
8. Food, drinks, etc., prohibited in workrooms - No food, drink, pan and supari or tobacco shall be brought into or consumed by any worker in any room or workplace wherein any process specified in paragraph 2 is carried on.
9. Protective clothing - The occupier shall provide, maintain in good repair and keep in a clean condition for the use of all persons employed in the processes specified in paragraph 2 suitable protective clothing, footwear and goggles according to the nature of the work and such clothing, footwear, etc. shall be worn by the persons concerned.
10. Washing facilities - There shall be provided and maintained in a cleanly state and in good repair for the use of all persons employed in the processes specified in paragraph 2 -
(a) a wash place with either -
(i) a trough with a smooth impervious surface fitted with a waste pipe, without plug, and of sufficient length to allow of at least 60 centimetres for every five such persons employed at any one time, and having a constant supply of water from taps or jets above the trough at intervals of not more than 60 centimetres; or
(ii) at least one wash basin for every five such persons employed at any one time, fitted with a waste pipe and plug and having an adequate supply of water laid on or always readily available;
(b) a sufficient supply of clean towels made of suitable material renewed daily with sufficient supply of soap or other suitable cleansing material and of nail brushes; and
(c) a sufficient number of stand pipes with taps the number and location of which shall be to the satisfaction of the Chief Inspector.
11. Medical facilities and record of examinations and tests - (1) The occupier of every factory in which glass manufacturing processes are carried out, shall -
(a) employ a qualified medical practitioner for medical surveillance of the workers employed therein whose appointment shall be subject to the approval of the Chief Inspector of Factories; and
(b) provide to the said medical practitioner all the necessary facilities for the purpose referred to in clause (a).
(2) The records of medical examinations and appropriate tests carried out by the said medical practitioner shall be maintained in a separate register approved by the Chief Inspector of Factories, which shall be kept readily available for inspection by the Inspector.
12. Medical Examination by Certifying Surgeon - (1)Every workers employed in processes specified in paragraph 2 shall be examined by the Certifying Surgeon within 15 days of his first employment. Such examination shall include pulmonary function tests and in suspected cases chest X-ray as well as tests for lead and urine. No worker shall be allowed to work after 15 days of first employment in the factory unless certified for such employment by the Certifying Surgeon.
(2) Every worker employed in the said processes shall be re-examined by the Certifying Surgeon at least once in every twelve calendar months. Such re-examination shall, wherever the Certifying Surgeon considers appropriate, include tests as specified in sub-paragraph (1).
(3) The Certifying Surgeon after examining a worker, shall issue a Certificate of Fitness in Form 23. The record of examination and re-examination carried out shall be entered in the Certificate and the Certificate shall be kept in the custody of the manager of the factory. The record of each examination carried out under sub-paragraph (1) and (2), including the nature and the results of the tests, shall also be entered by the Certifying Surgeon in a health register in Form 24.
(4) The Certificate of Fitness and the health register shall be kept readily available for inspection by the Inspector.
(5) If at any time the Certifying Surgeon is of the opinion that a worker is no longer fir for employment in the said processes on the ground that continuance therein would involve special danger to the health of worker, he shall make a record of his findings in the said certificate and the health register. The entry of his findings in those documents should also include the period for which he considers that the said person is unfit for work in the said processes. The person so suspended from the process shall be provided with alternate placement facilities unless he is fully incapiciated in the opinion of the Certifying Surgeon, in which the person affected shall be suitable rehabilitated.
(6) No person who has been found unfit to work as said in sub-paragraph (5) shall be re-employed or permitted to work in the said processes unless the Certifying Surgeon , after further examination, again certifies him fit for employment in those processes.
13. Exemption - If the Chief Inspector is satisfied in respect of any factory or any class of process that, owing to the special methods of work or the special conditions in a factory or otherwise, any of the requirements of this schedule can be suspended or relaxed without danger to the persons employed therein, or that the application of this schedule or any part thereof is for any reason impracticable, he may be certificate in writing authorise such suspension or relaxation as may be indicated in the certificate for such period and on such conditions as he may think fit.