Manufacture of Rayon
by viscose process
1. Definitions - For the purpose of
this schedule -
(a)
”approved” means approved for the time being in
writing by the Chief Inspector;
(b)
”breathing apparatus” means a helmet or face piece
with necessary connections by means of which the person using it in a poisonous, asphyxiating or
irritant atmosphere breathes unpolluted air; or any other approved apparatus;
(c)
”churn” means the vessel in which alkali cellulose
pulp is treated with carbon disulphide;
(d)
”dumping” means transfer of cellulose xanthate from a
dry churn to a dissolver;
(e)
”efficient exhaust draught” means localised
ventilation by mechanical means for the removal of any gas or vapour, so as to
prevent it from escaping into the air of any place in which work is carried
on. No draught shall be deemed to be
efficient if it fails to control effectively any gas or vapour generated at the
point where such gas or fume originates;
(f)
”fume process” means any process in which carbon
disulphide or hydrogen sulphide is produced, used or given off;
(g)
”life belt” means a belt made of leather or other
suitable material which can be securely fastened round the body with a suitable
length of rope attached to it, each of which is sufficiently strong to sustain
the weight of a man;
(h)
”protective equipment” means apron, goggles, face
shields, footwear, gloves and overalls made of suitable materials.
2. Ventilation -
(1)
In all workrooms where a fume process is carried on,
adequate ventilation by natural or mechanical means shall be provided so as to
control, in association with other control measures, the concentration of
carbon-di-sulphide and hydrogen sulphide in the air of every work environment
within the permissible limits.
(2)
Notwithstanding the requirements in sub-paragraph (1)
an efficient exhaust draught shall be provided and maintained to control the
concentration of carbon-di-sulphide and hydrogen sulphide in the air at the
following locations :-
(a)
dumping hoppers of dry churns;
(b)
spinning machines;
(c)
trio rollers and cutters used in steple fibre
spinning;
(d)
gydro-extractors for yarn cakes;
(e)
after treatment processes; and
(f)
spin baths.
(3)
In so far as the spinning machines and trio rollers
and cutters used in staple fibre spinning are concerned, they shall be, for the
purpose of ensuring the effectiveness of the exhaust draft to be provided as
required in sub-paragraph (1), enclosed as fully as practicable and provided
with suitable shutters in sections to enable the required operations to be
carried out without giving rise to undue quantities of carbon-di-dulphide
escaping to the work environment.
(4)
No dry churn shall be opened after completion of
reaction without initially exhausting the residual vapours of
carbon-di-sulphide by operation of a suitable and efficient arrangement for
exhausting the vapours which shall be continued to be operated as long as the
churn is kept opened.
(5)
Whenever any ventilation apparatus normally required
for the purpose of meeting the requirements in sub-paragraphs (2), (3), and (4)
is ineffective, fails, or is stopped for any purpose whatsoever, all persons
shall be required to leave the work areas where the equipment or processes
specified in the above said sub-paragraphs are in use, as soon as possible, and
in any case not later than 15 minutes after such an occurrence.
(6)
(a) All
ventilating systems provided for the purposes as required in sub-paragraphs
(2), (3) and (4) shall be examined and inspected once every week by a
responsible person. It shall be
thoroughly examined and tested by a competent person once In every period of
12 months. Any defects found by such examinations or test shall be rectified
forthwith.
(b) A register containing particulars of such
examinations and tests, and the state of the systems and the repairs or
alterations (if any) found to be necessary shall be kept and shall be available
for inspection by an Inspector.
3.
Waste from spinning machines-
Waste yarn from the spinning machines shall be deposited in suitable containers
provided with close fitting covers. Such waste shall be disposed off as quickly
as possible after decontamination.
4.
Lining of dry churns - The
inside surface of all dry churns shall be coated with a non-sticky paint so
that cellulose xanthate will not stick to the surface of the churn. Such coating shall be maintained in good
condition.
5.
Air monitoring -
(1)
To ensure the effectiveness of the control measures,
monitoring of carbon-di-sulphide and hydrogen sulphide in air shall be carried
out once atleast in every shift and the record of the results so obtained shall
be entered in a register specially maintained for the purposes.
(2)
For the purpose of the requirement in sub-paragraph
(1), instantaneous gas detector tubes shall not be used. Samples shall be collected over a duration
of not less than 10 minutes and analysed by an approved method. The locations where such monitoring is to be done shall be as
directed by the Inspector.
(3)
If the concentration of either carbon disulphide or
hydrogen sulphide exceeds the permissible limits for such vapour or gas as laid
down in Rule 123A, suitable steps shall be taken for controlling the
concentrations in air of such contaminants.
A report of such occurrences shall be sent to the Chief Inspector
forthwith.
6.
Prohibition to remain in fume
process room - No person during his intervals for meal, or rest shall
remain in any room wherein fume process is carried on.
7.
Prohibition relating to
employment of young persons - No young person shall be employed or
permitted to work in any fume process or in any room in which any such process
is carried on.
8.
Protective equipment -
(1)The occupier shall provide and maintain in good condition protective
equipment as specified in the Table for use of persons employed in the
processes referred to therein.
|
No. |
Process |
Protective equipment |
|
1. |
Dumping |
Overalls, face-shields, gloves and footwear – all made of suitable
material |
|
2 |
.Spinning |
Suitable aprons, gloves and footwear |
|
3 |
Process
involving or likely to involve contact with viscose solution |
Suitable gloves and footwear |
|
4 |
.Handling of sulphur |
Suitable chemical goggles |
|
|
Any other process involving contact with hazardous chemicals
|
Protective equipment as may be directed by the Chief Inspector by an
order in writing |
(2)
A suitable room, rooms or lockers
shall be provided exclusively for the storage of all protective equipment
supplied to workers and no such equipment shall be stored at any place other
than the room, rooms or lockers so provided.
9.
Breathing apparatus -
(1)There shall be provided in every factory where fume process is carried on,
sufficient supply of -
(a)
breathing apparatus,
(b)
oxygen and a suitable appliances for its
administration, and
(c)
life belts.
(2)
(a) The breathing
apparatus and other appliances referred to in sub-paragraph (1) shall be
maintained in good condition and kept in appropriate locations so as to be
readily available.
(b) The
breathing apparatus and other appliances referred to in clauses (a) and (b) of
sub-paragraph (1) shall be cleaned and disinfected at suitable intervals and
thoroughly inspected once every month by a responsible person.
(c) A
record of the maintenance of the condition of the breathing apparatus and other
appliances referred to in sub-clause (1) shall be entered in a register
provided for that purpose which shall be readily available for inspection by an
Inspector.
(3)
Sufficient number of workers shall be trained and
periodically retrained in the use of breathing apparatus and administering artificial respiration so that
at least 2 such trained persons would
be available during all the working hours in each room in which fume process is
carried on.
(4)
Breathing apparatus
shall be kept properly labelled in clean, dry, light-proof cabinets and
if liable to be affected by fumes, shall be protected by placing them in
suitable containers.
(5)
No person shall be employed to perform any work for
which breathing apparatus is necessary to be provided under sub-paragraph (1)
unless he has been fully instructed in the proper use of that equipment.
(6)
No breathing apparatus provided in pursuance of
sub-paragraph (1) which has been worn by a person shall be worn by another person
shall be worn by another person unless it has been thoroughly cleaned and
disinfected since last being worn and the person has been fully instructed in
the proper use of that equipment.
10. Electric
fittings - All electric fittings in any room in which carbon-di-sulphide is
produced, used or given off or is likely to be given off into the work
environment, other than a spinning room, shall be of flame-proof construction
and all electric conductors shall either be enclosed in metal conduits or be lead-sheathed.
11. Prohibition
relating to smoking, etc. - No person shall smoke or carry matches, fire or
naked light or other means of producing a naked light or spark in a room in
which fume process is carried on.
A notice in the language understood by the majority of the
workers shall be posted at prominent locations in the plant prohibiting smoking
and carrying of matches, fire or naked light or other means of producing naked
light or spark into such rooms.
Provided
that fire, naked light or other means of producing a naked light of spark may
be carried on in such room only when required for the purposes of the process
itself under the direction of a
responsible person.
12. Washing
and bathing facilities - (1)There shall be provided and maintained in a
clean state and in good repair for the use of all workers employed and in the
processes covered by the schedule, adequate washing and bathing places having a
constant supply of water under cover at the rate of one such place for every 25
persons employed.
(2)
The washing places shall have standpipes placed at
intervals of not less than one metre.
(3)
Not less than one half of the total number of washing
places shall be provided with
bathrooms.
(4)
Sufficient supply of clean towels made of suitable material
shall be provided.
Provided
that such towels shall be supplied individually for each worker if so ordered
by the Inspector.
(5) Sufficient supply of soap and nail brushes shall be provided.
13. Rest Room -
(1)
A rest room shall be provided for the workers engaged
in doffing operations of filament yarn spinning process.
(2) Such rest room shall be provided with fresh air supply and adequate seating arrangement.
14. Cautionary
notice and instructions - (1)The
following cautionary notice shall be prominently displayed in each fume
process room.
“Cautionary
Notice
1.
Carbon disulphide (CS2) and Hydrogen Sulphide (H2S)
which may be present in this room are hazardous to health.
2.
Follow safety instructions.
3.
Use protective equipment and breathing apparatus as
and when required.
4.
Smoking is strictly prohibited in this area.”
This notice shall be in a
language understood by the majority of the workers and displayed where it can
be easily and conveniently read. If any
worker is illiterate, effective steps shall be taken to explain carefully to
him the contents of the notice so displayed.
(2) Arrangements shall be made to instruct
each worker employed in any room in which a fume process is carried on
regarding the health hazards connected with their work and the preventive
measures and methods to protect themselves.
Such instructions shall be given on his first employment and repeated
periodically.
(3) Simple and special instructions shall be
framed to ensure that effective measures will be carried out in case of
emergency involving escape of carbon-di-sulphide and hydrogen sulphide. Those instructions shall be displayed in the
concerned areas and workers shall be instructed and trained in the actions to
be taken in such emergencies.
15.
Medical facilities and records of
examinations and tests - (1) The
occupier of every factory to which this schedule applies, shall-
(a)
employ a qualified medical practitioner for medical
surveillance of the workers employed therein whose employment shall be subject
to the approval of the Chief
Inspector of Factories; and
(b)
provide to
the said medical practitioner all the
necessary facilities for the purpose referred to in clause (a).
(2)
The record of such
examinations carried out by the medical
practitioner shall be maintained in a separate, register approved by the Chief
Inspector of Factories, which shall be kept readily available for inspection by the Inspector.
16.
Medical examination by Certifying
Surgeon - (1) Every worker employed in the processes specified in paragraph
1 shall be examined by a Certifying Surgeon within 15 days of his first employment. Such examinations
shall include skin test for dermatitis
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 Certifying Surgeon.
(2)
Every worker employed in a
manganese process shall be re-examined by a Certifying Surgeon at least once in
every three calendar months and such examination shall, wherever the Certifying
Surgeon considers appropriate, include all the tests in sub-paragraph (1).
(3)
The Certifying Surgeon after examining a worker,
shall issue a Certificate of Fitness in Form 23. 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 manger of the factory.
The record of each examination
carried out under sub-paragraph (1) and
(2) , including the nature and the results of these test, shall also be entered
by the Certifying Surgeon in a health register in Form 24.
(4)
The Certificate
of Fitness and the health
register shall be kept readily available for inspection by the
Inspector.
(5)
If at any time the Certifying Surgeon is of the
opinion that a worker is no longer fit
for employment in the said processes on the ground that continuance therein
would involve special danger to the health of the worker, he shall make a
record of his findings in the said certificate and the health register. The
entry of his findings in those
documents should also include
the period for which he
considers that the said person is unfit
to work in the said process shall be provided with alternate placement facilities
unless he is fully incapacitated in the opinion of the Certifying
Surgeon , in which case the person affected shall be suitably rehabilitated.
(6)
No person who has been found unfit to work as said in
sub-paragraph (5) shall be re-employed
or permitted to work in the said processes unless the Certifying
Surgeon, after further examination, again certifies him fit for employment in
those processes.
17. Exemptions
- If in respect of any factory, the Chief Inspector is satisfied that owing
to the exceptional circumstances or infrequency of the processes or for any
other reason, all or any of the provisions of this schedule is not necessary
for the protection of the workers in the factory, the Chief Inspector may be a
certificate in writing which he may in his discretion revoke at any time,
exempt such factory from all or any of such provisions subject to such
conditions, if any, as he may specify therein.