Schedule B IV Glass Manufacture

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 per cent 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 filtrate 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-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 inwhich 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-

of cement or similar material so as to be smooth and impervious

to water;

ii.

maintained in sound condition; and

iїi.

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-

have a smooth surface and be maintained in sound condition;

and

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 gutta-percha and be tight and shall

slope gently down to a covered drain;

c. the workplaces shall be soenclosed 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 distinguishingmark 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 2suitable 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, withoutplug, and of suffficient length to allow of at least

60 centimetres for every five such persons employed at any one

time,and having a constantsupply of water from taps or jets

above the trough at intervals of not more than 60 centimetres ;

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 ;

• 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

•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.

11.

Medical facilities and record of examinations and tests.-

I. 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-cum-Facilitator ; and

Provide to the said medical practitioner all the necessary facilities for

the purpose referred to in clause (a).

II. 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-cum-Facilitator, which shall be kept readily available for

inspection by the Inspector-cum-Facilitator.

12.

Medical Examination by Medical Officer.-

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

II.

work after 15 days of first employment in the factory unless certified for such

employment by the Medical Officer ;

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 (I).

III. The Medical Officer after examining a worker, shall issue a Certificate of

Fitness in Form XXIII. 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 (I) and (II), including the nature and the results of

the tests, shall also be entered by the Medical Officer in a health register in

Form XXIV.

IV. The Certificate of Fitness and the health register shall be kept readily available

for inspection by the Inspector.

V. If at any time the Medical Officer is of the opinion that a worker is no longer

fit 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 suitably rehabilitated.

VI.

Noperson who has been found unfit to work as said in sub-paragraph (V)

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.

13.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 Ban 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.