Schedule XII

MANUFACTURE OF POTTERY

1. Definitions - For the purposes of this schedule -

(a) "pottery" includes earthenware, stoneware, porcelain, china tiles, and any other articles

made from such clay or from a mixture containing clay and other materials such as quartz, flint,

feldspar, and gypsum;

(b) "efficient exhaust draught" means localised ventilation effected by mechanical or other

means for removal of dust or fume so as to prevent it from escaping into air of any place in

which work is carried on. No draught shall be deemed efficient which fails to remove

effectively dust or fume generated at the point where dust or fume originates;

(c) "fettling" includes scalloping, towing, sand papering, sand sticking, brushing or any

other process of cleaning of pottery ware in which dust is given off;

(d) "leadless glaze" means a glaze which does not contain more than one per

(e) cent of its dry weight, of a lead compound calculated as lead monoxide;

(f) "low solubility glaze" means a glaze which does not yield to dilute hydrochloric acid more

than five per cent of its dry weight, of a soluble lead compound calculated as lead monoxide

when determined in the manner described below :

(g) 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

1000 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 sulphide;

(h)"ground or powdered flint or quartz" does not include natural sands; and

(i) "potter's shop includes all places where pottery is formed by pressing or by any other process

and all places where shaping, fettling or other treatment of pottery articles prior to placing for

the biscuit fire is carried on.

2. Efficient exhaust draught - (1) The following processes shall not be carried on without

the use of an efficient exhaust draught -

(a) all processes involving the manipulation or use of a dry and un fritted lead compound;

(b] the fettling operations of any kind, whether on green ware or biscuit, provided that this shall

not apply to the wet fettling, and to the occasional finishing of pottery articles without the aid

of mechanical power;

(c) the shifting of clay dust or any other material for making tiles or other articles or other

articles by pressure, except where -

(i) this is done in an machine so enclosed as to effectually prevent the escape of dust;

or

(ii) the material to be shifted is so damp that no dust can be given off;

(d) the pressing of tiles from clay dust, an exhaust opening being connected with each

press, and pressing from clay dust of articles other than tiles, unless the material is so damp

that no dust is given off;

(e) the fettling of tiles made from clay dust by pressure, except where the fettling is done

wholly on, or with, damp material, and fettling of other articles made from clay dust, unless

the material is so damp that no dust is given off;

(f) the process of loading and unloading of saggars where handling and manipulation of ground

and powdered flint, quartz, alumina or other materials are involved;

(g) the brushing of earthenware biscuit, unless the process is carried on in a room provided

with efficient general mechanical ventilation or other ventilation which is certified by the

Inspector-cum-Facilitator as adequate having regard to all the circumstances of the case;

(h) fettling of biscuit ware which has been fired in powdered flint or quartz except where

this is done in machines so enclosed as to effectually prevent the escape of dust;

(i) Ware cleaning after the application of glaze by dipping or other process;

(j) crushing and dry grinding of materials for pottery bodies and saggars, unless carried on in

machines so enclosed as to effectively prevent the escape of dust or is so damp that no dust can

be given off;

(k) sieving or manipulation of powdered flint, quartz, clay grog or mixture of these

materials unless it is so damp that no dust can be given off;

(l) grinding of tiles on a power-driven wheel unless an efficient water spray is used on the

wheel;

(m) lifting and conveying of materials by elevators and conveyors unless they are effectively

enclosed and so arranged as to prevent escape of dust into the air in or near to any place in

which persons are employed;

(n) preparation or weighing out of flow material, lawning of dry colours, colour dusting and

colour blowing;

(o) mould making unless the bins or similar receptacles used for holding plaster of paris are

provided with suitable covers; and

(p) manipulation of calcined material unless the material has been made and remains so wet

that no dust is given off.

(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

3. Carrying of process- Each of the following processes shall be carried on in such a

manner and under conditions so as to secure effectual separation from one another and from

another processes;

(a) crushing and dry grinding or sieving of materials, fettling, pressing of tiles, drying of

clay and green ware, loading and unloading saggers

(b) all processes involving use of dry lead compound

4. Use of glaze- Noglaze which is not a leadless glaze or a low solubility glaze shall be

used in a factory in which pottery is manufactured.

5. 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 clause

2 or at any place where such operations are carried on.

6. Potter's wheel. - The potter's wheel (Jolly and Jigger) shall be provided with screens or

so constructed as to prevent clay scrapings being thrown off beyond the wheel.

7. Measures to be taken to prevent dust flowing: -

(1) All practical measures shall be taken by damping or otherwise to prevent dust arising

during cleaning of floors.

(2) Damp saw-dust or other suitable material shall be used to render the moist method

effective in preventing dust rising into the air during the cleaning process which shall be carried

out after work has ceased.

8. Cleaning of Floors:- The floors of potter's shops, slip houses, dipping houses and ware

cleaning rooms shall be hard, smooth and impervious and shall be thoroughly cleaned daily by

an adult male using a moist method.

9. Medical examination by Medical officer -

(1) Every worker employed in any process mentioned under paragraph 3, shall be examined

by a Medical officer within 15 days of his first employment. Such examination shall include

tests for lead in urine and blood, ALA in urine, hemoglobin content, stippling of cells and. No

worker shall be allowed to work after 15 days of his first employment in the factory unless

certified fit for such employment by the Medical officer.

(2] All persons employed in any of the processes included under subparagraphs 3(a) and 3(n)

shall be examined by a Medical officer once in every 3 calendar months. Those employed in

any other processes mentioned in the remaining sub-paragraphs of paragraph 3 shall be

examined by a Medical officer one in every 12 calendar months. Such examinations in respect

of all the workers shall include all the tests as specified in sub-paragraph (1) except chest X-

ray which will be once in 3 years.

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

40. The record of examination and re-examinations carried out shall be 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 sub-paragraphs (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. If at any time the Medical officer is of the opinion

that a worker is no longer fit for employment in the said process on the ground that continuance,

there in would involve special danger to the health of the worker he shall make a record of his

findings in the said Certificate and the health register. The entry of his findings in these

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 fully is incapacitated in the opinion of the Medical

officer, in which case the person affected shall be suitably rehabilitated.

(5) No person who has been found unfit to work as said in sub-paragraph above 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

10. Protective equipment -

(1) The occupier shall provide and maintain suitable overalls and hand

coverings for all persons employed in process included under paragraph 3.

(2) The occupier shall provide and maintain suitable aprons of a waterproof or similar

material, which can be sponged daily, for the use of the dippers, dippers assistants, throwers,

jolly workers, casters, mould makers and filter press and pug mill workers.

(3) Aprons provided in pursuance of paragraph 10(2) shall be thoroughly cleaned daily by

the wearers by sponging or other wet process. All overalls and head coverings shall be washed,

cleaned and mended at least once a week, and this washing, cleaning or mending shall be

provided for by the occupier.

(4) No person shall be allowed to work in emptying sacks of dust materials, weighing out

and mixing of dusty materials and charging of ball mills and plungers without wearing a

suitable and efficient dust respirator.

11. Washing facilities -

(1) The occupier shall provide and maintain, in a clean state and in good repair for the use

of all persons employed in any of the processes specified in paragraph 3

(a) a wash place under cover, 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 one feet for every five such persons employed at any

one time, and having a constant supply of clean water from taps or jets above the trough at

intervals of not more than two minutes; or

(ii) at least one tap or stand pipe for every five such persons employed at any one time, and

having a constant supply of clean water, the tap or stand pipe being spaced not less than 1.20

metres apart; and

(b) a sufficient supply of clean towels made of suitable materials changed daily, with a

sufficient supply of soap and nail brushes.

12. Time allowed for washing - Before each meal and before the end of the day's work, at

least ten minutes, in addition to the regular meal times, shall be allowed for washing to each

person employed in any of the processes mentioned in paragraph 2.

13. Mess room-

(1) There shall be provided and maintained for use of all persons remaining within the

premises during the rest intervals, a suitable mess room providing accommodation of 0.93

square meter per head and furnished with -

(a) a sufficient number of tables and chairs or benches with back rest;

(b) arrangements for washing utensils;

(c) adequate means for warming food; and

(d) adequate quantity of drinking water.

(2) The room shall be adequately ventilated by the circulation of fresh air and placed under

the charge of a responsible person and shall be kept clean.

14. 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 workroom in which any of the

processes mentioned in paragraph 3 are carried on and no person shall remain in any such room

during intervals for meals or rest.

15. Cloakrooms etc - There shall be provided and maintained for the use of all persons

employed in any of the processes mentioned in paragraph 2.

(a) A cloakroom for clothing put off during working hours and such accommodation shall

be sperate from any mess room; and

(b) Separate and suitable arrangements for the storage of protective equipment provided

under paragraph 11

16. Applications - These provisions shall not apply to a factory in which any of the

following articles, but no other pottery, are made :-

(a) Unglazed or salt glazed bricks and tiles; and

(b) Architectural terra-cotta made from plastic clay and either unglazed or glazed with a

leadless glaze only.

17. Exemption - If in respect of any factory the Chief Inspector-cum- Facilitator is satisfied

that all or any of the provisions of this schedule are not necessary for the protection of the

persons employed in such factory, he may by a certificate in writing exempt such factory from

all or any of such provisions, subject to such conditions as he may specify therein. Such

certificate may at any time be revoked by the Chief Inspector-cum-Facilitator without assigning

any reasons.