Schedule IV

GLASS MANUFACTURE

1. Exemption- If the Chief Inspector-cum-Facilitator 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 by certificate in writing authorize such

suspension or relaxation as may be indicated in the certificate for such period and on such

conditions as he may think fit.

2. 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: -

(c) 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 filtrate shall then be precipitated as lead

sulphide and weighed as lead sulphate.

3. Exhaust draught - (1) The following processes shall not be carried on except under an

efficient exhaust draught or such other conditions as may be approved by the Inspector-cum-

Facilitator: -

(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.

(2) (i) All equipment for the extraction or suppression of dust shall at least once in every six

months be examined and tested by competent person, and any defect disclosed by such

examination and test shall be rectified as soon as practicable.

(ii) A register containing particulars of such examination and tests shall be kept in Form-42

electronically or otherwise.

4. Prohibition relating to pregnant women and Adolescent - No pregnant woman or

adolescent 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.

5. 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.

6. 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 gutta-percha 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

7. Storage and transport of hydrofluoric acid - Hydrofluoric acid shall not be stored or

transported except in cylinders or receptacles made of lead or rubber.

8. 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.

9. 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.

10. 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.

11. Washing facilities - (1) 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.

(2) 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;

(3) a sufficient supply of dean towels made of suitable material renewed daily with

sufficient supply of soap or other suitable cleansing material and of nail brushes; and

(4) a sufficient number of stand pipes with taps the number and location of which shall be

to the satisfaction of the Chief Inspector-cum-Facilitator.

12. Medical Examination by Medical officer - (1) Every worker employed in processes

specified in paragraph 2 shall be examined by the Medical officer 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

(2) 15 days of first employment in the factory unless certified for such employment by the

Medical officer.

(2) Every worker employed in the said processes shall be re-examined by the Medical

officer at least once in every twelve calendar months. Such re-examination shall, wherever the

Medical officer considers appropriate, include tests as specified in sub-paragraph (1).

(3) The Medical officer after examining a worker, shall issue a Certificate of Fitness in

Form-40. The record of examination and re-examination carried out shall been entered in the

Certificate and the Certificate shall be kept in the custody of the occupier of the factory. The

record of each examination carried out under subparagraph (1) and (2), including the nature

and the results of the tests, shall also be entered by the Medical officer in a health register in

Form- 41 electronically or otherwise.

(4) The Certificate of Fitness and the health register shall be kept readily available for

inspection by the Inspector-cum-Facilitator.

(5) lf at any time the Medical officer 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 incapacitated in the opinion of the Medical officer, 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 Medical officer , after further

examination, again certifies him fit for employment in those processes.