Schedule – VIII

Cleaning or smoothing, roughening, etc. of articles, by a jet of  sand, metal  shot,  or  grit,  or other abrasive  propelled  by a blast of compressed air or steam


1.         Definitions - For the purposes of this schedule -


(a)                “blasting” means cleaning, smoothing, roughening, or removing of  any part of the surface of any article by the use of an abrasive of  a  jet  of  sand, metal shot, or  grit  or  other  material, propelled by a blast of compressed air or steam ;


(b)                “blasting  enclosure” means a chamber, barrel, cabinet  or  any other  enclosure  designed  for  the  performance  of   blasting  therein;


(c)                “blasting  chamber” means  a blasting enclosure in  which any person  may  enter at any time in connection with  any  work  or otherwise; and


(d)                “cleaning   of  castings”  where  done as an incidental or supplemental  process  in connection with the  making  of  metal castings, means the freeing of the casting from adherent sand or  other  substance  and  includes the removal  of cores  and the  general smoothening of a casting, but does not include the  free treatment.


2.         Prohibition of sand  blasting -  Sand or any  other substance containing  free silica shall not be introduced as an abrasive  into any blasting apparatus and shall not be used for blasting :


Provided that this clause shall come into force two years after  the coming into operation of this schedule.


Provided further that no woman or young person shall be employed  or  permitted to work at any operation of sand blasting.


        3.       Precautions  in connection with blasting operations - (1)Blasting shall not be done except in a blasting enclosure and no work  other  than blasting and any work  immediately  incidental thereto  and  clearing and repairing of the  enclosure  including  the  plant  and  appliances  situated  therein,  shall  be  kept closed and air tight while blasting  is being done therein.


(2)                 Blasting enclosure shall always be maintained in good  condition  and  effective measures shall be taken to prevent dust  escaping  from  such  enclosure, and from apparatus  connected  therewith, into the air of any room.


(3)                There  shall  be provided and maintained for and  in  connection  with   every   blasting  enclosure,  efficient  apparatus   for separating, so far as  practicable, abrasive which has been  used   for blasting and which is to be used again as an abrasive,  from  dust or particles of other materials arising from blasting;  and   no such abrasive shall be introduced into any blasting apparatus  and used for blasting until it has been so separated :


Provided that this clause shall not apply, except in the case of   blasting   chambers,  to  blasting  enclosures  constructed or installed before the coming into force of this schedule, if  the   Chief  Inspector  is  of  opinion  that  it  is  not  reasonably  practicable to provide such separating apparatus.

(4)       There shall be provided and maintained in connection with  every  blasting  enclosure efficient ventilating plant to  extract,  by exhaust  draught effected by mechanical means, dust produced  in  the enclosure.  The dust extracted and removed shall be disposed of  by such method and in such manner that it shall  not  escape into the air of any room; and every other filtering or  settling  device  situated in a room in which persons are employed,  other   than  persons  attending  to  such bag  or  other  filtering  or settling device, shall be completely separated from the general air of that room in an enclosure ventilated to the open air.


(5)       The ventilating plant provided for the purpose of  sub-paragraph (4) shall be kept in continuous operation whenever the  blasting enclosure is in use whether or not blasting is actually  taking  place  therein, and in the case of a blasting chamber, it  shall  be in operation even when any person is inside the chamber  for   the purpose of cleaning.



4.         Inspection  and examination - (1) Every blasting enclosure shall be specially inspected  by  a  competent person at least once in every week in which it is used for blasting. Every blasting enclosure, the apparatus connected therewith and the ventilating  plant  shall  be  thoroughly examined  and  in  the case of ventilating plant,  tested by  a competent person at least once in every month.


(2)       Particulars of the result of every such inspection,  examination or test shall forthwith be entered in a register which shall  be kept  in  a form approved by the Chief Inspector  and  shall  be  available  for  inspection  by any workman  employed  in  or  in   connection  with blasting in the factory.  Any defect  found  on any  such inspection, examination or test shall  be  immediately  reported by the person carrying out the inspection,  examination or test to the occupier, manager or other appropriate person and  without   prejudice  to  the  foregoing  requirements  of   this schedule, shall be removed without avoidable delay.



5.         Provision of protective helmets, gauntlets and overalls - (1) There  shall  be  provided and maintained for  the  use  of  all  persons  who  are  employed in a blasting  chamber,  whether  in  blasting  or in any work connected therewith or in cleaning  such  a  chamber, protective helmets of a type approved by a  certificate  of  the  Chief Inspector; and every such person shall  wear  the helmet  provided  for this use whilst he is in the  chamber  and  shall not remove it until he is outside the chamber.


(2)       Each  protective  helmet  shall  carry  a  distinguishing   mark  indicating  the person by whom it is intended to be used  and  no   person  shall  be  allowed  or required to  wear  a  helmet  not carrying  his  mark or a helmet which has been worn  by  another  person and has not since been thoroughly disinfected.


(3)       Each protective helmet when in use shall be supplied with  clean and  not unreasonably cold air at a rate of not less  170  litres  per minute.


(4)        Suitable gauntlets and overalls shall be provided for the use of  all persons while performing blasting or assisting at  blasting, and every such person shall while so engaged, wear the  gauntlet  and overall provided.


6.         Precautions  in connection with cleaning and other work - (1) Where  any  person  is engaged upon cleaning of any  blasting  apparatus or blasting enclosure or of any apparatus or ventilating plant connected therewith or the surroundings thereof or upon any other work in connection with any blasting apparatus or blasting enclosure or with any apparatus or ventilating plant  connected  therewith so that  he is exposed to the risk of inhaling  dust which has arisen from blasting, all  practicable measures shall be taken to prevent such inhalation.


(2)       In  connection  with  any  cleaning  operation  referred  to  in paragraph  5,  and with the removal of dust  from  filtering  or  settling  devices  all practicable measures shall be  taken   to  dispose of the dust in such a manner that it does not enter  the  air  of any room.  Vacuum cleaners shall be provided  and  used   wherever practicable for such cleaning operations.



7.         Storage accommodation for protective wear - Adequate  and  suitable  storage  accommodation  for  the helmets, gauntlets  and  overalls  required  to be provided by paragraph 5 shall be  provided  outside and conveniently  near  to  every  blasting  enclosure  and   such  accommodation shall be kept clean.  Helmets, gauntlets and  overalls  when not in actual use shall be kept in this accommodation.


8.         Maintenance   and  cleaning  of  protective  wear -   All   helmets,  guantlets,  overalls  and  other  protective  devices  or  clothings  provided  and worn for the purposes of this schedule, shall be  kept  in  good condition and so far as is reasonably practicable shall  be cleaned on every weekday in which they are used. Where dust arising  from the cleaning of such protective clothing or devices is likely to  be inhaled,  all  practicable measures shall be taken to  prevent  such inhalation.  Vacuum cleaners shall, wherever practicable, be  used  for removing dust from such clothing and compressed air shall not be  used for removing dust from any clothing.


9.         Maintenance of vacuum cleaning plant - Vacuum cleaning plant  used   for the purpose of this schedule shall be properly maintained.


10.       Medical  facilities and records of examinations and tests -  (1) The  occupier  of every factory to which the  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 medical examinations and appropriate tests carried out  by the said 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.


11.       Medical examination by the Certifying Surgeon - (1) Every worker employed in any of the processes to which this schedule shall be examined by a Certifying  Surgeon within 15 days of his first employment.  Such examination  shall  include  pulmonary  function  tests and chest X-rays.  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 the said processes shall be re-examined by a Certifying Surgeon at least once in every 12 calendar months and such re-examination shall, wherever the Certifying Surgeon  considers  appropriate, include pulmonary function test and chest X-ray once in every three years.


(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 manager of the factory.  The record of each examination carried out under sub-paragraphs (1) and  (2),  including  the  nature  and the results of the tests, shall also be  entered  by the 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 record of his findings  in  the said certificate and the health register.  The entry  of  his  findings in those documents should also include the  period  for which he considers that the said person is unfit for work in the  said processes.  The person so suspended from  the  process  shall be provided with alternate placement facilities unless  he  is fully incapacitated in the opinion of the 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.           


12.       Restrictions in employment of young persons - (1) No person under 18 years of age shall be employed in blasting or assisting at  blasting or in any blasting chamber or in the cleaning of any blasting apparatus or any blasting enclosure or any  apparatus or ventilating plant connected therewith  or  be employed  on  maintenance  or repair  work  at  such  apparatus,  enclosure or plant.



(2)      No person under 18 years of age shall be employed  to  work  regularly  within twenty feet of any blasting enclosure unless the enclosure is in a room and he is outside that room where  he is effectively  separated  from  any  dust  coming  from   the  enclosure.



13.       Power  to exempt or relax - (1)If  the Chief Inspector is satisfied that in any factory or  any  class of factory, the use of sand or other substance containing free silica as an abrasive in blasting  is  necessary for a particular manufacture or process (other than the  process  incidental or supplemental to making of metal castings) and that the manufacture or process cannot be carried on without the  use of such  abrasive  or that owing to the special  conditions  or special  method of work or otherwise any requirement of this schedule can be relaxed without endangering the health of the persons employed or that application of any such requirements is for any reason impracticable or inappropriate, he may, with  the  previous sanction  of  the State Government,  by  an  order  in writing  exempt the said factory or class of factory from  such provisions of this schedule, to such an extent and  subject  to  such  conditions and for such period as may be specified in  the said order.


(2)               Where  an exemption has been granted under sub-paragraph (1),  a  copy  of  the order shall be displayed at a notice  board  at  a  prominent place at the main entrance or entrances to the factory   and also at the place where the blasting is carried on.