Schedule X

Chemical Works

Preliminary

PART-I

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

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 chloride of

lime;

(d) "Chlorate" means chlorate or perchlorate;

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

(f) "Chrome process" means the manufacture of chromate or bichromate of potassium

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

(g) "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;

(h) "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 as specified in rules,

exceeding the concentration specified therein would make the substance toxic;

(i) "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;

(j) "dangerous chemical reactions" means high speed reactions, run away 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.; and

(k) "manipulation" means mixing, blending, filling, emptying, grinding, sieving,

drying, packing, sweeping, handling, using etc. of substance given in appendix A;

PART-II

General requirements

Applying to all the works in Appendix ‘A’

1. House-keeping.- (1) Any spillage of materials shall be cleaned up before further

processing.

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

obstructions.

(3) There shall be provided easy means of access to all 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 purposes other than in

the processes for which they are supplied.

3. 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 1 month

of their employment and for old workers employed, within one month of coming into

operation of the rules, 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 pipelines.

4. Evaluation and provision of safe guards 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 product to

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

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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-

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

within 60 days of 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 be taken into consideration effective safe-guards against

all the safety and health hazards so evaluated.

(4) The requirements under the sub-clause (1) to (3) shall not act in lieu of or in derogation

to, any, other provisions contained in any act governing the work.

5. Authorised entry.- Authorised 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.

6. Examination of instruments and safety devices.- (1) All 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 a month, by a competent employee of the factory, 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.

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

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

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

etc. and shall conform to the relevant ISI specifications governing their construction and use

for that area.

8. 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 ISI 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 rules.

(3) Without prejudice to the generally of the requirements in sub-clause (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 stores 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 item (a) are to be exceeded, the

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

(c) Notwithstanding anything contained in item (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 substance quickly into the stand by storage facility if any defect develops in any of

the containers resulting in the release of toxic substances.

(6) Any storage facility constructed using non-metallic material such as fiber 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.

9. 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's, the maintenance and the health and safety personnel and these

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

10. 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.

11. 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 systems 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.

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12. 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, and

culverts, and burned pipes and equipment, to control the escape and spread of 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 into 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.

13. Control of dangerous chemical reactions.- Suitable provision, 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.

14. 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 as

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 matter. 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: and

(c) 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) Specific parts of plant, equipment, machinery which in the likely event of failure may

give rise to an emergent situation identified by occupier or manager shall be examined once

in six months by the competent person,

(3) Records of testing an examination referred to in clause (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 shall 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 is done on pipelines, and joints are required to be welded, but welding

of joints shall be preferred, wherever necessary, the responsible person shall regulate the

aforesaid work through a 'permit to work system'.

15. 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 para shall have appropriate access

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

board.

16. 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.

17. Entry into or work in confined spaces.- (1) 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—

(a) 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;

(b) 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:

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

safe by washing or cleaning with neutralizing agents or purging with steam or

inert gases and making adequate forced ventilation arrangements or such measure

which will render the confined space safe:

(d) shall arrange to carry out such test 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:

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

confined spaces about the hazard involved in the work. He shall also keep in

readiness the appropriate and approved personal protective equipment including

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arrangements for rescue, resurrection and first aid, and shall arrange supervision

of the work at all times by a responsible and knowledgeable person,

(2) The manager shall maintain a log book of all entry into or work in, confined space 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 safety and health of the persons

assigned for this work. The log book so maintained shall be retained as long as the concerned

workers are in service and produced to the Inspector-cum-Facilitator when demanded.

18. 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,

19. 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.

20. 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 concentration, which are either

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

21. Procedures for meeting emergencies.- (1) The occupier of every factory carrying out

the works covered in Appendix '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.

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

including arrangements for summoning out-side help for rescue and firefighting and

arrangements for making available urgent medical facilities.

(3) 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 .

(4) 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.

(5) 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.

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

including evacuation procedures during emergencies.

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

in the achievements of the objectives shall suitably be corrected.

(8) The occupier shall arrange to have ten percent of the workers trained in the use of first aid

firefighting appliances and in the rendering of specific first aid measures taking into

consideration the special hazards of the particular process.

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

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

proper emergency or first aid treatment to exposed persons.

22. 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 explosions 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 used 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 suitable 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 not metal on them, and the wheels of trucks or conveyors shall be

conductive types.

(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, pipelines 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

static sparking, where necessary, humidity shall be regulated.

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(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 takes place.

3. Lighting Protection.- Lighting protection arrangements 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 arrangements shall be automatically controlled at a predetermined

temperature below the danger temperature.

5. Leakage of flammable liquids.- (1) Provision shall be made to confine by means of bund

walls, dikes sumps etc. possible leakages from storage vessels containing flammable liquid.

(2) Waste material in contact with flammable substances shall be disposed of suitably under

the supervision of knowledgeable and responsible person.

(3) Adequate and suitable firefighting 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 release the pressure. These appliances shall be maintained in good condition.

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

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

in a week to detect any deterioration or defects. or accumulation of flammable or explosive

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

8. Firefighting systems.- (1) Every factory having licence for more than 100 workers and

carrying out processes listed in Appendix 'A' shall provide,-

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

firefighting 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 there be less than 8 such trained persons to be

available at any time. The squad shall consist of watch and ward personnel fire

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

fire & emergency services.

(b) Squad leaders shall be trained from a recognised institution.

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

boots and belts.

(2) Every factory having licence up to 100 workers and carrying out processes listed in

Appendix 'A' shall provide-

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

firefighting 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 there be less than 2 such trained persons to be

available at any time.

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

boots and belts.

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

and maintained.

(4) 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.

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

to all manufacturing or storing areas through telephone interlinked 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 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 the buildings shall be so designed as to localise

any escape of toxic substances.

(2) Catch pits, and blind walls, dikes, 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 cool action taken

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 vessels of structure containing any toxic substances

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

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

(2) Such vessels shall unless its edge is at least 90 centimeters above the adjoining ground or

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

ground platform.

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

other work is either less than 45 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-clause (2) of this clause 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.

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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 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 in nouns or otherwise treat them or inactive 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 drawing of the containers in the stove 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 placed 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 the 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 process

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.

(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 per-formation 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 vessels.

(2) Any spillage of 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 surfaces made of non-combustible

material. The place shall be thoroughly cleaned daily.

(2) The personal protective equipment like 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 precaution in the use of plants and equipment made from reinforced plastics.-

(1) All Plant and equipment shall conform to appropriate Indian Standard.

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

equipment to avoid accidental damage:

(3) All plants 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 manufacturers.

(4) All pipe works 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 plants and equipment shall be subjected to a pressure test followed by a

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

standard. A Certificate of test and examination by 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 clause 14 in part II of this schedule:

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

loading beyond rated capacity.

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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, 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 Between 50 persons 2

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 7 + 1 for every 200 persons

above 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.

PART-VII

Additional Welfare Amenities

1. Special bathing facilities.- (1) The occupier of any factory carrying out the process

covered under appendix shall provide special bathing facilities for all the workers employed

and such facilities shall be provided at the rate of 1 for 25 workers and part thereof. and shall

be maintained in the clean and hygienic condition.

(2) The occupier shall insist all the workers employed in the process covered in Appendix 'B'

to take bath after the completion of the days or shift work using the bathing facilities so

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

the bathing facilities.

(3) Not-withstanding 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 in his opinion bathing facilities are essential from the health point of view, to

provide special bathing facilities.

Part-VIII

Exemptions

1. Power of exemption.- The State Government or subject to the control of the State

Government, the Chief Inspector-cum-Facilitator -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.