Schedule XI

CHEMICAL WORKS

PART-I

1. Application - This schedule shall apply to all manufacture and processes incidental

there to carried on in chemical works.

2. Definitions - For the purpose of this schedule -

(a) "chemical works" means any factory or such parts of any factory as are listed in

appendix· A' to this schedule;

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

means for the removal of gas, vapour, fume or dust to prevent it from escaping into the air of

any place in which work is carried on;

(c) "bleaching powder” means the bleaching powder commonly called

(d) chloride of lime;

(e) "chlorate" means chlorate or per chlorate;

(f) "caustic" means hydroxide of potassium or sodium;

(g) "chrome process" means the manufacture of chromate or dichromate of potassium or

sodium, OT the manipulation, movement or other treatment of these substances;

(h) "nitro or amino process" means the manufacture of nitro or amino derivatives of phenol

and of benzene or its homologues, and the making of explosives with the use of any of these

substances;

(i) the term 'permit to work' system means the compliance with the

(j) procedures laid down under Para 20 of Part II;

(k) "toxic substances" means all those substances which when they enter into the human

body, through inhalation or ingestion or absorption through skin, in sufficient quantities cause

fatality or exert serious affliction of health, or chronic harmful effects on the health of persons

exposed to it due to its inherent chemical or biological effects. In respect of substances whose

TLV is specified in Rule-131exceeding the concentration specified therein would make the

substance toxic;

(1) "emergency" means a situation or condition leading to a circumstance or set of

circumstances in which there is danger to the life or health of persons or which could result in

big fire or explosion or pollution to the work and outside environment, affecting the workers

or neighbourhood in a serious manner, demanding immediate action;

(m) "dangerous chemical reactions" means high speed reactions, runaway reactions, delayed

reactions, etc. And are characterised by evolution of large quantities of heat, intense release of

toxic or flammable gases or vapours, sudden pressure build-up etc.;

(n) "manipulation" means mixing, blending, filling, emptying, grinding,

(o) sieving, drying, packing, sweeping, handling, using, etc.;

(p) "approved personal protective equipment" means items of personal protective equipment

conforming to the relevant ISI specifications or in the absence of it, personal protective

equipment approved by the Inspector- cum-Facilitator;

(q) "appropriate personal protective equipment" means that when the protective equipment is

used by the worker, he shall have no risk to his life or health or body; and

® "confined space" means any space by reason of its construction as well as in relation to the

nature of the work carried therein and where hazards to the persons entering into or working

inside exist or are likely to develop during working.

PART-II

General Requirements

Applying to all the works in Appendix 'A'

1. Housekeeping -

(1) Any spillage of materials shall be cleaned up before further processing.

(2) Floors, platforms, stairways, passages and gangways shall be free of any obstructions.

(3) There shall be provided easy means of access to all parts of the parts of the plant to facilitate

cleaning.

2. Improper use of chemicals-No chemicals or solvents or empty containers containing

chemicals or solvents shall be permitted to be used by workers for any purpose other than in

the processes for which they are supplied.

3. Prohibition on the use of food to be specified clearly - No food, drink, tobacco, pan or

any edible item shall be stored or heated or consumed on or near any part of the plant or

equipment.

4. Cautionary Notices and Instructions -

(1) Cautionary notices in a language understood by the majority of workers shall be

prominently displayed in all hazardous areas drawing the attention of all workers about the

hazards to health, hazards involving fire and explosion and any other hazard such as

consequences of testing of material or substances used in the process or using any contaminated

container for drinking or eating, to which the workers' attention should be drawn for ensuring

their safety and health.

(2) In addition to the above cautionary notice, arrangement shall be made to instruct and

educate all the workers including illiterate workers about the hazards in the process including

the specific hazards to which they may be exposed to, in the normal course of their work. Such

instructions and education should also deal with the hazards involved in unauthorised and

unsafe practices including the properties of substances used in the process under normal

conditions as well as abnormal conditions and the precautions to be observed against each and

every hazard. Further, an undertaking from the workers shall be obtained within one month of

their employment to the effect that they have read the contents of the cautionary notices and

instructions, understood them and would abide by them. The training and instructions to all

workers and all supervisory personnel shall include the significance of different types of

symbols and colours used on the labels stuck or painted on the various types of containers and

pipe lines.

5. Evaluation and provision of safeguards before the commencement of process -

(1) Before commencing any process or any experimental work, or any new manufacture

covered under Appendix 'A', the occupier shall take all possible steps to ascertain definitely all

the hazards involved both from the actual operations and the chemical reactions including the

dangerous chemical reactions. The properties of the raw materials used, the final products to

be made and any by-products derived during manufacture, shall be carefully studied and

provisions shall be made for dealing with any hazards including effects on workers, which may

occur during manufacture.

(2) Information in writing giving details of the process, its hazards and the steps taken or

proposed to be taken from the design stage to disposal stage for ensuring the safety as in sub-

paragraph (1) should be sent to the Chief Inspector-cum-Facilitator at the earliest but in no case

less than 15 days before commencing manufacture, handling, or storage of any of items covered

under Appendix 'A', whether on experimental basis, or as pilot plant or as trial production, or

as large scale manufacture.

(3) The design, construction, installation, operation, maintenance and disposal of the

buildings, plant and facilities shall take into consideration effective safeguards against all the

safety and health hazards so evaluated.

(4) The requirements under the sub-Paragraphs (1) (2) and (3) shall not act in lieu of or in

derogation to, any other provisions contained in any Act governing the work.

6. Authorized entry - Authorized persons only shall be permitted to enter any section of

the factory or plant where any dangerous operations or processes are being carried on or where

dangerous chemical reactions are taking place or where hazardous chemicals are stored.

7. Examination of instruments and safety devices -(1) Alt instruments and safety devices

used in the process shall be tested before taking into use and after carrying out any repair to

them and examined once in six months, by a competent person. Records of such tests and

examinations shall be maintained in a register.

(2) All instruments and safety devices used in the process shall be operated daily or as often as

it is necessary, to ensure its effective and efficient working at all times.

8. Electrical installations - All electrical installations used in the process covered in

Appendix 'A' shalt be of an appropriate type to ensure safety against the hazard prevalent in

that area such as suitability against dust, dampness, corrosion, flammability and explosively

etc. And shall confirm to the relevant ISi specifications governing their construction and use

for that area.

9. Handling and storage of chemicals -

(1) The containers for handling and storage of chemicals shall be of adequate strength

taking into consideration the hazardous nature of the contents. They shall also be provided with

adequate labelling and colour coding arrangements to enable identification of the containers

and their contents indicating the hazards and safe handling methods and shall conform to the

respective 1S1 standards. The instructions given in the label shall be strictly adhered to.

Damaged containers shall be handled only under supervision of a knowledgeable and

responsible person and spillage shall be rendered innocuous in a safe manner using appropriate

means.

(2) The arrangements for the storage of chemicals including charging of chemicals in reaction

vessels and containers shall be such as to prevent any risk of fire or explosion or formation of

toxic concentration of substances above the limits specified in these Rules.

(3) Without prejudice to the generality of the requirements in sub- Para (2) above, the

arrangements shall have suitable ventilation facilities and shall enable the maintenance of safe

levels in vessels and containers. Such arrangements shall also take into consideration, the type

of flooring and the capacity of flooring and the compatibility requirements of substances with

other chemicals stored nearby.

(4) (a) Storage of chemicals and intermediate products, which are highly unstable or

reactive or explosive shall be limited to the quantities required for two months use.

(b) Whenever the quantities laid down in the above clause (a) are to be exceeded, the

permission of the Chief Inspector-cum-Facilitator shall be obtained.

(c) Notwithstanding anything contained in clause (a) and (b) above, the Chief Inspector-

cum-Facilitator may direct any factory carrying out processes covered in Appendix 'A' to

further limit the storage of hazardous substances to quantities less than two months on

considerations of safety.

(5) Standby arrangements equal to the biggest container shall always be available to

transfer the toxic substances quickly into the standby storage facility if any defect develops in

any of the container resulting in the release of toxic substances.

(6) Any storage facility constructed using non-metallic material such as Fibre glass

Reinforced Plastics (FRP), all glass vessels etc., shall have adequate strength to withstand the

stress, if any, exerted by the contents and shall be properly anchored. Working platforms, access

ladders, pipelines etc used in such storage facility shall not have any support on the structure

of the storage facility and shall be independently supported.

10. Facility for isolation -The plant and equipment shall be so constructed and maintained

as to enable quick isolation of plant or part of plant or equipment, with appropriate indication.

One copy of the layout plan indicating the isolation facilities shall always be available with the

security personnel, the maintenance and the health and safety personnel and these isolation

facilities shall be checked for its effectiveness once in a month.

11. Personal protective equipment -

(1) All workers exposed to the hazards in the processes covered by this Schedule shall be

provided with appropriate and approved type of personal protective equipment. Such

equipment shall be in a clean, sterile and hygienic condition before issue.

(2} The occupier shall arrange to inform, educate and supervise all the workers in the use of

personal protective equipment while carrying out the job.

(3) As regards any doubt regarding the appropriateness of any personal protective equipment,

the decision of the Chief Inspector-cum-Facilitator will be final.

12. Alarm Systems -

(1) Suitable and effective alarm systems giving audible and visible indications, shall be

installed at the control room as well as in all strategic locations where process control

arrangements are available so as to enable corrective action to be taken before the operational

parameters exceed the predetermined safe levels or lead to conditions conducive for an

outbreak of fire or explosion to occur. Such alarm systems shall be checked daily and tested

every month at least once to ensure its performance efficiency at all times.

(2) The Chief Inspector-cum-Facilitator may direct such system to be installed in case of

plants or processes where toxic materials are being used and spillage or leakage of which may

cause wide spread poisoning in or around the plant.

13. Control of escape of substances into the work atmosphere -

(1) Effective arrangements such as, enclosure, or by pass, or efficient exhaust draught,

maintenance of negative pressure etc., shall be provided in all plants, containers, vessels,

sewers, drains, flues, ducts, culverts, and buried pipes and equipment, to control the escape and

spread or substances which are likely to give rise to fire or explosion or toxic hazards during

normal working and in the event of accident or emergency.

(2) In the event of the failure of the arrangements for control resulting in the escape of

substances in the work atmosphere immediate steps shall be taken to control the process in

such a manner, that further escape is brought down to the safe level.

(3) The substances that would have escaped into the work atmosphere before taking

immediate steps as required in sub-Para (2), shall be rendered innocuous by diluting with air

or water or any other suitable agent or by suitably treating the substances.

14. Control of dangerous chemical reactions - Suitable prov1s1on, such as automatic and

or remote-control arrangements, shall be made for controlling the effects of dangerous

chemical reactions. In the event of failure of control arrangements automatic flooding or

blanketing or other effective arrangements shall come into operation.

15. Testing, examination and repair of plant & equipment -

(1) All parts of plant, equipment and machinery used in the process which in the likely

event of their failure may give rise to an emergent situation shall be tested by a competent

person before commencing process and retested at an interval of two years or after carrying out

repairs to it. The competent person shall identify the parts of the plant, equipment and

machinery required to be tested as aforesaid and evolve a suitable testing procedure. In carrying

out the test mentioned above in respect of pressure vessels or reaction vessels the following

precautions shall be observed, namely -

(a) before the test is carried out, each vessel shall be thoroughly cleaned and examined

externally, and as far as practicable, internally also for surface defects, corrosion and foreign

matters. During the process of cleaning and removal of sludge, if any, all due precautions shall

be taken against fire or explosion, if such sludge is of pyrophoric nature or contains

spontaneously combustible chemicals;

(b) as soon as the test is completed, the vessel shall be thoroughly dried internally and shall

be clearly stamped with the marks and figures indicating the person by whom testing has been

done, and the date of test;

(c) and any vessel which fails to pass the test or which for any other reason is found to be

unsafe for use shall be destroyed or rendered unusable under intimation to the Chief Inspector-

cum-Facilitator.

(2) All parts of plant, equipment, machinery which is the likely event of failure may give rise

to an emergent situation shall be examined once in a month by the competent person.

(3) Records of testing and examination referred to in paragraphs (1) and (2) shall be maintained

as long as that part of the plant, equipment and machinery are in use.

(4) All repair work including alteration, modification and addition to be carried out to the plant,

equipment and machinery shalt be done under the supervision of a responsible person who

shall evolve a procedure to ensure safety and health of persons doing the work. When repairs

or modification ls done on pipelines, and joints are required to be welded, butt welding of joints

shall be preferred. Wherever necessary, the responsible person shall regulate the aforesaid work

through a 'Permit to work system'.

16. Staging –

(1) All staging that is erected for the purpose of maintenance work or repair work or for

work connected with entry into confined spaces and used in the processes included in Appendix

'A', shall be stable, rigid and constructed out of substantial material of adequate strength. Such

staging shall conform to the respective Indian Standard specifications.

(2) Staging shall not be erected over any closed or open vessel unless the vessel is so

constructed and ventilated to prevent exposure of persons working on the stages.

(3) All the staging constructed for the purpose of this Paragraph shall have appropriate

access which are safe and shall be fitted with proper hand rails to a height of one metre and toe

board.

17. Seating Arrangements - The seating arrangements provided for the operating

personnel working in processes covered in Appendix 'A' shall be located in a safe manner as to

prevent the risk of exposure to toxic, flammable and explosive substances evolved in the work

environment in the course of manufacture or repair or maintenance, either due to failure of

plant and equipment or due to the substances which are under pressure, escaping into the

atmosphere.

18. Entry into or work in confined spaces-

(a) The occupier of every factory to which the provisions of this schedule apply, shall

ensure the observance of the following precautions before permitting any person to enter or

work inside the confined spaces -

(b] identify all confined spaces and the nature of hazards that are encountered in such spaces,

normally or abnormally, and arrange to develop the most appropriate safeguards for ensuring

the safety and health of persons entering into or working inside, the confined spaces:

(c) regulate the entry or work inside the confined spaces through a 'permit to work system'

which should include the safeguards so developed as required under sub-clause (a) above;

(d) before testing the confined space for entry into or work, the place shall be rendered safe by

washing or cleaning with neutralising agents; or purging with steam or inert gases and making

adequate forced ventilation arrangements or such measure which will render the confined space

safe;

(e) Shalt arrange to carry out such tests as are necessary for the purpose by a competent person

and ensure that the confined space is safe for the persons to enter or work. Such testing shall

be carried out as often as is necessary during the course of work to ensure its continued safety;

(f) shall arrange to educate and train the personnel who would be required to work in confined

spaces about the hazards involved in the work. He shall also keep in readiness the appropriate

and approved personal protective equipment including arrangements for, rescue resurrection

and first aid, and shall arrange supervision of the work at all times by a responsible and

knowledgeable person.

(g) The occupier shall maintain a log of all entry into or work in, confined spaces and such

record shall contain the details of persons assigned for the work, the location of the work and

such other details that would have a bearing on the log book so maintained shall be retained as

long as the concerned workers are in service and produces to the Inspector- cum-Facilitator

when demanded.

19. Maintenance work etc-

(1) All the work connected with the maintenance of plants and equipment including

cleaning of empty containers which have held hazardous substances used in the processes

covered in this Schedule, shall be carried out under• permit to work system' employing trained

personnel and under the supervision of responsible person, having knowledge of the hazards

and precautions required to deal with them.

(2) Maintenance work shall be carried out in such a manner that there is no risk to persons

in the vicinity or to persons who pass by. If necessary, the place of such work shall be cordoned

off or the presence of unconnected persons effectively controlled.

20. Permit to work system - The permit to work system shall inter-alia include the

observance of the following precautions while carrying out any specified work to be subjected

to the permit to work system -

(a) all work subject to the permit to work system shall be carried out under the supervision of

a Knowledgeable and responsible person;

(b) all parts of plant or machinery or equipment on which permit to work system is carried

out, shall remain isolated from other parts throughout the period of permit to work and the

place of work including the parts of plant, machinery shall be rendered safe by cleaning,

purging, washing, etc.;

(c) All work subject to the permit to work system shall have predetermined work

procedures which integrate safety with the work. Such procedures shall be reviewed whenever

any change occurs in material or equipment so that continued safety is ensured;

(d) persons who are assigned to carry out the permit to work system shall be physically fit

in all respects taking into consideration the demands and nature, of the work before entering

into the confined space. Such person shall be adequately informed about the correct work

procedures as well as the precautions to be observed while carrying out the permit to work

system;

(e) adequate rescue arrangements wherever considered necessary and adequate first aid,

rescue and resurrection arrangements shall be available in good working condition near the

place of work while carrying out the permit to work system, for use in emergency;

(f) appropriate and approved personal protective equipment shall be used while carrying

out the 'permit to work system';

(g) after completion of work subject to the 'permit to work system' the person responsible

shall remove all the equipment and tools and restore to the original condition so as to prevent

any danger while carrying out regular process.

21. Safety sampling personnel - The occupier shall ensure the safety of persons assigned

for collecting samples by instructing them on the safe procedures. Such personnel shall be

provided with proper and approved personal protective equipment, if required.

22. Ventilation - Adequate ventilation arrangements shall be provided and maintained at all

times in the process area where dangerous or toxic or flammable or explosive substances could

be evolved. These arrangements shall ensure that concentrations, which are either harmful or

could result in explosion, are not permitted to be built up in the work environment.

23. Procedures for meeting emergencies -

(1) The occupier of every factory carrying out the works covered in Appendix

(2) 'A', shall arrange to identify all types of possible emergencies that could occur in the

processes during the course of work or while carrying out maintenance work or repair work.

The emergencies so identified shall be reviewed every year.

(3) The occupier shall formulate a detailed plan to meet all such identified emergencies

including arrangements for summoning outside help for rescue and firefighting arrangements

for making available urgent medical facilities.

(4) The occupier shall send the list of emergencies and the details of procedures and plans

formulated to meet the emergencies, to the Chief Inspector-cum- Facilitator.

(5) The occupier shall arrange to install distinctive and recognisable warning arrangements to

caution all persons inside the plant as well as the neighbouring community, if necessary, to

enable evacuation of persons and to enable the observance of emergency procedures by the

persons who are assigned emergency duties. All concerned must be well informed about the

warning arrangements and their meaning. The arrangements must be checked for its

effectiveness every month.

(6) Alternate power supply arrangements shall be made and interlocked with the normal power

supply system so as to ensure constant supply of power to the facilities and equipment meant

for compliance with requirements of Paragraphs 10, 11, 12, 13,14, 18, 22, and this paragraph

of Part 11, Part 111, Part IV and Part V of this Schedule.

(7) The occupier shall arrange to suspend the further process work in a place where emergency

is established and shall forthwith evacuate all persons in that area except workers who have

been assigned emergency duties.

(8) All the employees of the factory shall be trained about the action to be taken by them

including evacuation procedures during emergencies.

(9) All emergency procedures must be rehearsed every three months and deficiencies, if any,

in the achievement of the objectives shall suitably be corrected.

(10) The occupier shall arrange to have ten percent of the workers trained in the use of First

Aid Fire Fighting appliances and in the rendering of specific hazards of the particular process.

(11) The occupier shall furnish immediately on request the specific chemical identity of the

hazardous substance to the treating physician where the information is needed to administer

proper emergency or first-aid treatment to exposed persons.

24. Danger due to effluents - (1) Adequate precautions shall be taken to prevent the mixing

of effluents from different processes and operations which may cause dangerous or poisonous

gases to be evolved.

(2) Effluents which contain or give rise in the presence of other effluents to poisonous gases

shall be provided with independent drainage systems to ensure that they may be trapped and

rendered safe.

PART- III

Fire and Explosion Risks

1. Sources of ignition including lighting installation. -

(1) No internal combustion engine and no electric motor or other electrical equipment, and

fittings and fixtures capable of generating sparks or otherwise causing combustion or any other

source of ignition or any naked light shall be installed or permitted to be in the process area

where there could be fire and explosion hazards.

(2) All hot exhaust pipes shall be installed outside a building and other hot pipes or hot surface

or surfaces likely to become hot shall be suitably protected.

(3) The classification of work areas in terms of its hazard potential and the selection of

electrical equipment or other equipment that could constitute a source of ignition shall be in

accordance with the respective Indian Standard.

[4) Where a flammable atmosphere may be prevalent or could occur, the soles of footwear

worn by workers shall have no metal on them, and the wheels of trucks or conveyors shall be

conductive type.

(5) All tools and appliances used for work in this area shall be of non-sparking type.

(6) Smoking in process areas where there are risks of fire and explosion shall be prohibited,

and warning notices in the language understood by majority of workers shall be posted in the

factory prohibiting smoking into specified areas.

2. Static Electricity -

(1) All machinery and plant, particularly, pipe lines and belt drives, on which static charge

is likely to accumulate, shall be effectively earthed. Receptacles for flammable liquids shall

have metallic connections to the earthed supply tanks to prevent statics parking. Where

necessary, humidity shall be regulated.

(2) Mobile tanker wagons shall be earthed during filling and discharge, and precautions shall

be taken to ensure that earthing is effective before such filling or discharge take place.

3. Lightning protection - Lightening protection arrangement shall be fitted where

necessary, and shall be maintained.

4. Process heating - The method of providing heat for a process likely to result in fire and

explosion shall be as safe as possible and where the use of naked flame is necessary, the plant

shall be so constructed as to prevent any escaping flammable gas, vapour, or dust coming into

contact with the flame, or exhaust gases, or other sources likely to cause ignition. Wherever

possible, the heating arrangement shall be automatically controlled at a pre-determined

temperature below the danger temperature.

5. Leakage of flammable liquids -

(1) Provision shall be made to confine by means of bund walls, dykes, sumps etc. Possible

leakages from storage vessels containing flammable liquids.

(2) Waste material in contact with flammable disposed off suitably under the supervision

responsible person. Substances shall be of knowledgeable and

(3) Adequate and suitable fire-fighting appliances shall be installed in the vicinity of such

vessels.

6. Safety valves - Every still and every closed vessel in which gas is evolved or into which

gas is passed, and in which the pressure is liable to rise above

the atmospheric pressure, shall have attached to it a pressure gauge, and a proper safety valve

or other equally efficient means to relieve the pressure. These appliances shall be maintained

in good condition.

7. Installation of pipe line etc. - All pipelines carrying flammable or explosive substances

shall be protected from mechanical damage and shall be examined by a responsible person

once a week to detect any deterioration or defects, or accumulation of flammable or explosive

substances, and record kept of any defects found and repairs made.

8. Firefighting systems -

(1) Every factory employing 250 or more persons and carrying out processes listed in Appendix

'A' shall provide -

(a) Trained and responsible firefighting squad so as to effectively handle the fire fighting and

lifesaving equipment in the event of fire or other emergency. Number of persons in this squad

will necessarily depend upon the size of risk involved, but in no case shall be less than 8 such

trained persons to be available at any time. The squad shall consist of watch & ward personnel,

fire pump man and departmental supervisors and operators trained in the operation of fire

&emergency services.

(b) Squad leaders shall preferably be trained in a recognised government institution and their

usefulness enhanced by providing residence on the premises.

(c) Squad personnel shall be provided with clothing and equipment including helmets, boots

and belts.

(2) A muster roll showing the duties allocated to each member of the squad shall be prepared

and copies supplied to each leader as well as displayed in prominent places so as to be easily

available for reference in case of emergency.

(3) The pump man shall be thoroughly conversant with the location of all appliances. He shall

be responsible for maintaining all firefighting equipment in proper working order. Any defect

coming to his notice shall be immediately be brought to the notice of squad leader.

(4) As far as is practicable, the fire pump room and the main gate(s) of the factory be connected

to all manufacturing or storing areas through telephone inter lined and placed in a convenient

location near such areas.

PART IV

Risks of Toxic Substances

1. Leakage -

(1) All plants shall be so designed and constructed as to prevent the escape of toxic substance.

Where necessary, separate buildings, rooms, or protective structures shall be used for the

dangerous stages of the process and buildings shall be so designed as to localise any escape of

toxic substances.

(2) Catch pits, bund walls, dykes, or other suitable safeguards shall be provided to restrict the

serious effects of such leakages. Catch pits shall be placed below joints in pipelines where there

is danger involved to maintenance and other workers from such leakage.

2. Drainage - Adequate drainage shall be provided and shall lead to collection tanks

specifically provided for this purpose wherein deleterious material shall be neutralised, treated

or otherwise rendered safe before it is discharged into public drains or sewers.

3. Covering of vessels -(1) Every fixed vessel or structure containing any toxic substance

and not so covered as to eliminate all reasonable risk of accidental contact of any portion of

the body of a worker, shall be so constructed as to avoid physical contact.

(2) Such vessel shall, unless its edge is at least 90 centimetres above the adjoining ground

or platform, be securely fenced to a height of at least 90 centimeters above such adjoining

ground or platform.

(3) Where such vessels adjoin and the space between them, clear of any surrounding brick

or other work is either less than 45 centimeters in width or is 45 or more centimeters in width,

but is not securely fenced on both sides to a height of at least 90 centimeters, secure barriers

shall be so placed as to prevent passage between them :

Provided that sub-paragraph (2) of this paragraph shall not apply to -

(a) saturators used in the manufacture of sulphate of ammonia; and

(b) That part of the sides of brine evaporating pans which require raking, drawing or filling.

4. Continuous exhaust arrangement -

(1) Any process evolving toxic vapour, gas, fume and substance shall have efficient

continuous exhaust draught. Such arrangement shall be interlocked in the process control

wherever possible.

(2) In the event of failure of continuous exhaust arrangement means shall be provided to

automatically stop the process.

5. Work Bench - All the work benches used in the processes involving the manipulation

of toxic substances, shall be graded properly and shall be made of smooth impervious surface

which shall be washed daily after the completion of work.

6. Waste disposal -

(1) There shall be provided a suitable receptacle made of non-absorbable material with a

tightly fitting cover for depositing waste material soiled with toxic substances and the contents

of such receptacle shall be destroyed by burning or using other suitable methods under the

supervision of a responsible person.

(2) During the course of manufacture, whenever any batch or intermediate products having

toxicity is rejected on considerations of quality, sufficient precautions shall be taken to render

them innocuous or otherwise treat them or inactivate them, before disposal.

(3) The empty containers of toxic substances shall be cleaned thoroughly before disposal

under the supervision of a responsible person.

PART- V

Special Provisions

1. Special precautions for Nitro or Amino Processes -

(1) Unless the crystallised nitro or amino substances or any of its liquor is broken or

agitated in a completely enclosed process so as not to give rise to dust or fume, such process

shall be carried on under an efficient exhaust draught or by adopting any other suitable means

in such a manner as to prevent the escape of dust or fume in the working atmosphere.

(2) No part of the plant or equipment or implements which was in contact with nitro or

amino compounds shall be repaired, or handled unless they have been emptied and thoroughly

cleaned and decontaminated.

(3) Filling of containers with nitro or amino compounds shall be done only by using a

suitable scoop to avoid physical contact and the drying of the containers in the store shall be

done in such a manner that the hot and contaminated air from the stove is not drawn into the

work room.

(4) Processes involving the steaming into or around any vessel containing nitro or amino

compounds or its raw materials shall be carried out in such a manner that the steam or vapour

is effectively prevented to be blown back into the working atmosphere.

(5) Suitable antidotes such as methylene blue injections shall always be available at

designated places of work for use during emergency involving the poisoning with nitro or

amino compounds.

2. Special precautions for• chrome processes -

(1) Grinding and sieving of raw materials in chrome processes shall be carried on in such

a manner and under such condition as to secure effective separation from any other processes

and under an efficient exhaust draught.

(2) There shall be washing facilities located very near to places where wet chrome

processes such as leaching, acidification, sulphate settling, evaporation, crystallisation,

centrifugation or packing are carried out, to enable quick washing of affected parts of body

with running water.

(3) Weekly inspection of hand and feet of all persons employed in chrome process shall be

done by a qualified nurse and record of such inspections shall be maintained in a form approved

by the Chief Inspector-cum-Facilitator.

(4) There shall be always available at designated places of work suitable ointment such as

glycerine, Vaseline, etc. And water proof plaster in a separate box readily accessible to the

workers so as to protect against perforation of nasal septum.

3. Special precautions for processes carried out in all glass vessels -

(1) Processes and chemical reactions such as manufacture of vinyl chloride, benzyl chloride

etc. Which are required to be carried out in all glass vessels shall have suitable means like

substantial wire mesh covering to protect persons working nearby in the event of breakage of

glass vessel.

(2) Any spillage or emission of vapour from the all-glass vessel due to breakage, shall be

immediately inactivated or rendered innocuous by suitable means such as dilution with water

or suitable solvents so as to avoid the risks of fire or explosion or health hazards.

4. Special precautions for processes involving chlorate manufacture -

(1) Crystallisation, grinding or packing of chlorate shall not be done in a place used for any

other purpose and such places shall have hard, smooth and impervious surface made of non-

combustible material. The place shall be thoroughly cleaned daily.

(2) The personal protective equipment likes overall, etc. Provided for the chlorate workers

shall not be taken from the place of work and they shall be thoroughly cleaned daily.

(3) Adequate quantity of water shall be available near the place of chlorate process for use

during fire emergency.

(4) Wooden vessels shall not be used for the crystallisation of chlorate or to contain

crystallised ground chlorate.

5. Special precautions in the use of plant and equipment made from reinforced plastics -

(1) All plant and equipment shall conform to appropriate Indian or any other National

Standard.

(2) Care shall be taken during storage, transport, handling and installation of plant and

equipment to avoid accidental damage.

(3) All plant and equipment shall be installed in such a way as to ensure that loads are

distributed as intended in design or as per the recommendations of the manufacture.

(4) All pipe work shall be supported so that total loads local to the branches on the vessel

or tank do not exceed their design values.

(5) After erection all plant and equipment shall be subjected to a pressure test followed by

a thorough examination by a competent person. The test and examination shall be as per

relevant Standard. A certificate of test and examination by a competent person shall be obtained

and kept available at site.

(6) All plant and equipment shall be subjected to periodical test and examination and record

maintained as per Paragraph 15 in Part 11 of this Schedule

(7) Plant and equipment during their use shall not be subjected to over filling or

overloading beyond rated capacity.

PART-VI

Medical Requirements

(1) Decontamination facilities - In all places where toxic substances are used in processes listed

in Appendix 'A' the following provisions shall be made to meet an emergency:

(a) fully equipped first aid box;

(b) readily accessible means of drenching with water persons, parts of body of persons, and

clothing of persons who have been contaminated with such toxic and corrosive substances, and

such means shall be as shown in the Table below: -

No of persons employed at any time No of drenching showers

Up to 50 persons 2

Between 51 to 100 3

101 to 200 3 + 1 for every 50 persons thereafter

201 to 400 5 + 1 for every 100 persons thereafter

401 and above 7 +1 for every 200 persons thereafter

(c) a sufficient number of eye wash bottles filled with distilled water or suitable liquid, kept in

boxes or cupboards conveniently situated and clearly indicated by a distinctive sign which shall

be visible at all times.

(2) Occupational health Centre - In all the factories carrying out processes covered in

Appendix 'A' there shall be provided and maintained in good order an occupational health

centre with facilities as per scale laid down hereunder

(1) For factories employing up to fifty workers -

(a) the services of a qualified medical practitioner shall be available on a retainer ship basis,

in his notified clinic near to the factory for seeking medical help during emergency. He will

also carry out the pre-employment and periodical medical examinations as stipulated in

paragraph 4 of this Part.

(b) A minimum of five persons trained in first aid procedures, amongst whom at least one

shall always be available during the working period.

(c) A fully equipped first aid box.

(2) For factories employing 51 to 200 workers -

(a) The occupational health centre shall have a room having a minimum floor area of 15 Sq.M,

with floors and walls made of smooth, hard and impervious surface and shall be adequately

illuminated, ventilated and equipped.

(b) A part-time Qualified Medical Practitioner will be in overall charge of the Centre who

shall visit the factory minimum twice in a week and whose services shall be readily available

during emergencies.

(c) There shall be one qualified and trained dresser-cum-compounder on duty throughout

the working period.

(d) A fully equipped first aid box.

(3) For factories employing above 200 workers -

(a) There shall be one full-time Qualified Medical Practitioner for factories employing up

to 500 workers and one more medical officer for every 1000 workers or part thereof.

(b) The occupational health centre in this case shall have a minimum of 2 rooms each

having a minimum floor area of 15 sq.m. with floors and walls made of smooth, hard and

impervious surface and shall be adequately illuminated, ventilated and equipped.

(c) There shall be one trained nurse, one dresser-cum-compounder and one sweeper-cum-

ward boy throughout the working period.

(d) The Occupational Health Centre in this case shall be suitably equipped to manage medical

emergencies.

3. Ambulance van -

(1) In every factory carrying out processes covered in Appendix 'A', there shall be provided

and maintained in good condition, a suitably constructed and fully equipped ambulance van as

per Appendix 'C' manned by a full-time driver-cum mechanic and a helper, trained in first aid

for the purposes of transportation of serious cases of accidents or sickness unless arrangements

for procuring such facility at short notice during emergencies have been made with the nearby

hospital or other places. The ambulance van shall not be used for any purpose other than the

purpose stipulated herein and will always be available near the Occupational Health Centre.

(2) The relaxation to procure Ambulance Van from nearby places provided for in sub para (1)

above will not be applicable to factories employing more than 500 workers.

4. Medical examination –

(1) Workers employed in processes covered in Appendix 'A' shall be medically

examined by Medical Officer in the following manner -

(i) Once before employment, to ascertain physical suitability of the person to do the particular

job;

(ii) Once in a period of 6 months, to ascertain the health status of the worker, and

(iii) The details of pre-employment and periodical medical examinations carried out as

aforesaid shall be recorded in the prescribed Form-40 and 44.

(2) Any finding of the Medical Officer revealing any abnormality or unsuitability of any

person employed in the process shall immediately be reported to the Medical officer who shall

in turn, examine the concerned workers and communicate his findings within 30 days. If the

Medical officer is of the opinion that the person so examined is required to be suspended from

the process for health protection he will direct the occupier accordingly, who shall not employ

the said worker in the same process. However, 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 case the person affected shall be suitably rehabilitated :

Provided that the Medical officer on his own may examine any other worker whom he feels

necessary to be examined for ascertaining the suitability of his employment in the process

covered in Appendix 'A' or for ascertaining the health status of any other worker and his opinion

shall be final.

(3) No person shall be newly appointed without the Certificate of Fitness granted by the

Medical Officer. If the Medical Officer declares a person unfit for being appointed to work in

the process covered in Appendix 'A', such person shall have a right of appeal to the Medical

officer, whose opinion shall be final in this regard.

(4) The worker suspended from the process owing to the circumstances covered in sub-

paragraph (2) shall be employed again in the same process only after obtaining the Fitness

Certificate from the Medical officer and after making entries to that effect in the health register.

PART VII

Additional Welfare Amenities

1. Washing facilities -

(1) There shall be provided and maintained in every factory for the use of all the workers taps

for washing, at the rate of one every 15 persons including liquid soap in a container with tilting

arrangements and nail brushes or other suitable means for effective cleaning. Such facilities

shall be conveniently accessible and shall be kept in a clean and hygienic condition.

(2) If washing facilities as required above are provided for women, such facilities shall be

separate for them and adequate privacy at all times shall be ensured in such facilities.

2. Mess room facilities -

(1) The occupier of all the factories carrying out processes covered in Appendix 'A' and

employing 50 workers or more, shall provide for all the workers working in a shift mess room

facilities which are well ventilated and provided with tables and sitting facilities along with the

provision of cold and hygienic drinking water facilities.

(2) Such facilities shall include suitable arrangements for cleaning and washing and shall

be maintained in a clean and hygienic condition.

3. Cloakroom facilities -

(1) The occupier of every factory carrying out any process covered in Appendix 'A' shall

provide for all the workers employed in the process cloak room facilities with lockers. Each

worker shall be provided with two lockers, one for work clothing and another separately for

personal clothing and the lockers should be such as to enable the keeping of the clothing in a

hanging position.

(2) The cloak room facilities provided in pursuance of sub-para (1) shall be located as far

as possible near to the facilities provided for washing in pursuance of para 1(1). If it is not

possible to locate the washing facilities the cloakroom facilities shall have adequate and

suitable arrangements for cleaning & washing.

4. Special bathing facilities -

(1) The occupier of any factory carrying out the process covered under Appendix 'B' shall

provide special bathing facilities for all the workers employed and such facilities shall be

provided at the rate of 1 for 25 workers or less workers than 25 workers, and shall be maintained

in a clean and hygienic condition.

(2) The occupier shall insist all the workers employed in the processes covered in Appendix

"B' to take bath after the completion of the day's or shift work using the bathing facilities so

provided and shall also effectively prevent such of those workers taking bath in any place other

than the bathing facilities.

(3) Notwithstanding anything contained in sub-para (1) above, the Chief Inspector-cum-

Facilitator may require in writing the occupier of any factory carrying out any other process

for which his opinion bathing facilities are essential from the health point of view, to provide

special bathing facilities.

PART VIII

1. Duties of workers -

(1) Every worker employed in the processes covered in Appendix 'A' and Appendix 'B'

shall not make safety device or appliance or any guarding or fencing arrangement, inoperative

or defective and shall report the defective condition of the aforesaid arrangements as soon as

he is aware of any such defect.

(2) Before commencing any work, all workers employed in processes covered in Appendix

'A' shall check their workplace as well as the machinery, equipment or appliance used in the

processes and report any mal- function or defect immediately to the supervisor or any

responsible person of the management.

(3) All workers shall co-operate in all respects with the management while carrying out

any work or any emergency duty assigned to them in pursuance of this schedule and shall

always use all the personal protective equipment issued to them in a careful manner.

(4) All workers employed in the processes covered in Appendix 'A' or Appendix 'B' shall

not smoke in the process area or storage area. If special facilities are provided by the

management only such facilities should be used.

(5) All workers employed in the processes covered in Appendix 'A' shall not remain an

unauthorised place or carry cut unauthorised work or improvise any arrangement or adopt short

out method or misuse any of the facilities provided in pursuance of the Schedule, in such a

manner as to cause risk to themselves as well as or to others employed.

(6) The workers shall not refuse undergoing medical examination as required under these rules.

PART IX

Restrictions on the employment of pregnant Women and Adolescent

(1) The Chief Inspector-cum-Facilitator may by an order in writing, restrict or prohibit the

employment of pregnant women and adolescent , in any of the processes covered in Appendix

'A' of this schedule on considerations of health and safety of women and young persons.

(2) Such persons who are restricted or prohibited from working in the process due to the

order issued in pursuance of sub-para (1) above shall be provided with alternate work which is

not detrimental to their health or safety.

PARTX

Exemptions

Power of exemption - The Union Territory Administration of Lakshadweep or subject to the

control of the Administration of Lakshadweep, the Chief Inspector-cum-Facilitator may

exempt from the compliance with any of the requirements of this Schedule partly or fully, any

factory carrying out processes covered in Appendix 'A', if it is clearly and satisfactorily

established by the occupier that the compliance with any of the requirement is not necessary to

ensure the safety and health of persons employed suitable and effective alternate arrangements

are available to any of the requirements covered in this schedule.