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RETL, NRTI,etc

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RETL

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RESPIRATORY EQUIPMENT TESTINGLABORATORY (RETL)

FACILITIES AVAILABLE FOR TESTING OF RESPIRATORY PERSONAL PROTECTIVE EQUIPMENT (RETL)

INTRODUCTION

Most of the chemicals that are used, handled, processed or manufactured in industries are harmful to the workers in varying degrees. These chemicals may be toxic, corrosive or carcinogenic and may cause health hazards through inhalation, ingestion or skin absorption. Technological measures are practiced in many industries to control toxic contaminants in work environment. However, there are situations when the use of respiratory devices becomes vital and essential.

Most of the Personal Protective Equipment (PPE) are manufactured in the small scale enterprises. These small scale industries do not possess adequate resources and facilities for testing raw materials and the finished PPE as per the Specifications laid down in relevant Standard prescribed by the Bureau of Indian Standards (BIS). They do not also have the research and developmental facilities. Technical guidance and advice is also not readily available to them for improving the quality of these equipment.

It has been observed from the Hand Book of Labour Statistics (1992), of Labour Bureau, Ministry of Labour, Government of India, Chandigarh/Shimla that every year more number of workers get exposed to the various types of chemicals and contract occupational diseases. Thus, PPE play an important role in safe-guarding the health of the industrial workers from various occupational diseases, provided they meet the requirements of the specified standard of BIS.

OBJECTIVE

The main objectives of Respiratory Equipment Testing Laboratory are :

    1. to develop testing facilities to assess the performance and efficiency of the various respiratory PPE as per BIS Specifications.
    2. To render Technical advice to the manufacturers on the functional efficiency and the quality improvement and guidance to the user industries on selection, use, care and maintenance of the respiratory PPE.

AMENDMENT IN THE FACTORIES ACT

First Schedule {Section 2 (cb)} of the Factories (Amendment) Act, 1987 provides the list of 29 different industries involving hazardous processes.

Second Schedule (Section 41-F) lists the permissible levels of 117 toxic chemicals causing various occupational diseases by entering into body through the vital respiratory mode. In view of this, it is of foremost importance to use various respiratory PPE as the preventive measures against these toxic chemicals.

Rule 81 of Model Rules under the Factories Act, 1948 (corrected upto 31.3.1987), Government of India, prescribes the use of various PPE.

ACHIEVEMENTS

  1. Disposable dust masks
  2. A simple, inexpensive, comfortable and disposable type dust mask was developed by this Laboratory. It was made from low cost man-made fibres by the die-punch moulding technique. Developed masks were subjected to performance tests in accordance with the U.S. Bureau of Mines specifications. Extensive work was carried out on these masks to determine the performance parameters such as filtering efficiency, breathing resistance and mechanical strength. The complete know-how data was transferred to the National Research and Development Corporation (NRDC), New Delhi for its transmission to the industries for its commercial production.

  3. Present Testing Facilities :

Now, this Laboratory is equipped with the facilities to undertake the testing of canister, cartridge type respirators and dust respirators as per the Standard specifications laid down by the BIS.

Canister and cartridge type respirators are tested against the following gases and vapour.

    1. Chlorine
    2. Ammonia
    3. Sulphur dioxide
    4. Hydrogen sulphide and
    5. Organic vapour.

..

TYPES OF RESPIRATORY PROTECTIVE EQUIPMENT AND RELATED TESTS

Type of PPE BIS Standard and related Tests

Type of PPE BIS Standard and related Tests

CANISTER TYPE (Gas Mask)  IS : 8523 – 1977*
 

Performance Tests :

  1. Front or Back Mounted
  1. Breathing Resistance :
  1. Chin Type
  1. Inhalation Resistance and
  2. Exhalation Resistance
  1. Escape Type
  1. Life and efficiency of sorbents against the specific gas/vapour:
    1. With Equilibration and
    2. Without Equilibration
  2. Valve leakage test and
  3. Face piece fitness test.
CARTRIDGE TYPE IS:8522 – 1977*
Similar tests as mentioned above
DUST RESPIRATOR IS:9473 – 1980*
Reaffirmed in February, 1991
  1. Breathing Resistance :
    1. With Equilibration and
    2. Without Equilibration.
  2. Efficiency of the filter against silica dust
  3. Valve leakage test
  4. Pressure tightness test and
  5. Coal dust tightness test

(face piece fitness test)

 

 

ASPECTS ON WHICH THE USER INDUSTRIES ARE ADVISED
 
  1. Type of PPE
  2. Quality and performance
  3. Workers’ views/suggestions towards the acceptability/suitability of PPE
  4. Managements’ views
  5. Awareness to proper selection, use, care and maintenance of PPE.

 

ASPECTS CONSIDERED FORADVISING THE MANUFACTURE
 
  1. Anthropometric data.
  2. Ergonomic design
  3. Convenience and comfort during use
  4. Quality and reliability and
  5. Suitability under tropical conditions

 

 

 

INSTITUTIONAL FEE

Institutional fee is nominal and is basically promotional in nature. The current institutional fee for the service rendered by the Laboratory for testing of various types of respiratory PPE is levied as given below:

                        Respiratory Personal Protective Equipment

Sl. No.

Type of Respirator

Institute Fee (Per Sample)

1

Canister Type

Rs. 660/-

2

Combination of Cartridge and Mechanical Type (Particulate Filter)

Rs. 660/-

 

3

Cartridge Type

Rs. 660/-

4

Mechanical Type

Rs. 660/-

5.

Breathing Air Cylinder

Rs. 660/-

...

Non – Respiratory Testing laboratory (NRTL)
Facilities available FOR testing of non – respiratory personal protective equipment (NRPPE)

Adequate protection of body is essential in order to ensure the safety of human life at work in every industry though the nature of protection varies from industry to industry and is dependent not only on the type of operation but also on the kind of hazard associated. Personal Protective Equipment (PPE) are always recommend for use in industry to protect the workmen against physical, chemical, and biological agents which possess hazard potentials of causing harmful health effects to the workers. Various engineering control method and technologies are generally applied to minimise the degree and intensity of such occupational hazards ,but in case of certain industrial hazards ,but in case of certain industrial situations ,there is no choice but to recommend the use of PPE . The magnitude of use of problem of using PPE in industries have increased in the recent years due to the growth of modern technologies and effective safety awareness programme.

It has been well recognized that the degree of protection provided by the PPE to the workers greatly depends upon their selection, use, and the extent of their performance in actual operation. The use of Personal Protective Equipment (ppe) by the employees in the factories under different situations, is a statutory provisions made under Sections 32,35 and 36 of the Factories Act, 1948. The Bureau Of Indian Standards (BIS) has brought out many standards on Personal Protective Equipment for protection of eyes, face, ears, feet, legs ,hand, head, etc. in addition to guidelines for selection and use of such equipment. However, the testing facilities available in the few institutes in the country is not sufficient to ensure the quality of products as per the Bureau Of Indian Standards.

Therefore ,the Central Labour Institute , Mumbai has set up to a Non-Respiratory Equipment Testing Laboratory (NRTL) to carry out Performance test for different types of PPE’s as per the standards laid down by the BIS .The laboratory is equipped with all the sophisticated equipment that are needed for testing of PPE. At present the laboratory undertakes testing of samples of PPE and issues performance test reports in regard to the quality of protective appliances.

The various tests that could be undertaken by the laboratory as per the standards of the BIS are given in details.

Types of Personal Protective Equipment and Various Tests
Name of PPE

Tests that are carried out

Safety Helmet

IS:2925-1984

  1. Clearance above the head and the wearing height

  2. Shock absorption resistance

  3. Penetration resistance

  4. Flammability Resistance

  5. Water Absorption

  6. Heat Resistance

  7. Sterilization

  8. Corrosion Resistance of metal parts

Eye Protectors

Safety Goggles

Safety Spectacle

IS:5983-1980

IS:7524(Part-I)-1979

Non-Optical tests

  1. Stability at elevated temperature
  2. Test for Robustness
  3. Resistance to corrosion of metal parts
  4. Suitability for Disinfection
  5. Proof against chemical splashes

IS:7524(Part-II)-1979

Optical Tests

  1. Spherical, cylindrical and Prismatic powers

  2. Determination of transmittance (UV/VIS/IR)

  3. Quality of material & Surface

Welding Helmets

Welding Hand Shield

IS: 1179 -1967
  1. Corrosion Resistance of metal parts
  2. Disinfection
  3. Flammability

Filter :--

Welding Filter ,Ultra Violet

Filter, Infra Red Filter

 

IS:1179-1967/IS:5983-1980
  1. Stability at elevated temperature
  2. Optical-Power Spherical , Daylight Filter Cylindrical , Prismatic
  3. Robustness
  4. Transmittance

Filter Cover

IS:1179-1967/IS:5983-1980
  1. Stability at elevated temperature
  2. Optical-Power Spherical , Daylight Filter Cylindrical , Prismatic
  3. Robustness
  4. Transmittance

Visor

IS:9973-1981
  1. Impact Resistance
  2. Penetration Resistance
  3. FlammabilityPower
  4. Spherical & Cylindrical Prismatic
  5. Transmittance

Face Shield with Plastic Visor

 

IS:8521(Part-I)-1977
IS:8521(Part-I)-1994
  1. Visual and Dimensional Examination

  2. Impact Resistance

  3. Visible Transmittance

  4. Flammability

  5. Disinfection

Safety Shoes

(a)Leather Safety Shoes

IS:5852-1996 / IS:11226 –1993
  1. Impact test for protective  steel toe caps

IS:5914-1970

  1. Leather Sole Apparent density
    1. Water Absorption
    2. Total Ash
    3. pH of water soluble

IS:11226-1993/IS:13469-1992

  1. Rubber/ PVC Sole and heels

    1. Flex Resistance testing (Ross Flexing)
      IS:3400(Part-XVI-)/12240(Part-7)
    2. Relative DensityIS:3400-1978
      (Part-IX)/12240(Part-3)
    3. HardnessIS3400(Part-II)/ 12240(Part-6)-1988
    4. Electrical resistivity(Antistatic)
      IS:3400(Part-XV)-1971
    5. Oil ResistanceIS:11226/13469-1992
    6. Chemical Resistance IS:11226-1993/IS:13469-1992
    7. Tensile Strength

    8. Elongation at breakIS:11226-1993/IS:13469-1992

IS:2961-1973 IS:5677-1986

  1. Chrome upper leather

  1. Tensile Strength
  2. Elongation at Break
  3. Water absorption
  4. Stitch tear strength
  5. Tongue tear resistance
  6. Heat Resistance
  7. Chromium content as Cr2O3
  1. Rubber PVC Sole and heels
    1. Flex Resistance testing (Ross Flexing) IS:3400(Part-XVI-)/12240(Part-7
    2. Relative DensityIS:3400-1978 (Part-IX)/12240(Part-3)
    3. HardnessIS3400(Part-II)/12240(Part-6)-1988
    4. Electrical resistivity (Antistatic) IS:3400(Part-XV)-1971
    5. Oil ResistanceIS:11226/13469-1992
    6. Chemical Resistance IS:11226-1993/IS:13469-1992
    7. Tensile Strength
    8. Elongation at break IS:11226-1993/IS:13469-1992

(b) Rubber /PVC Knee Boots ( Gum Boots )

IS:12254-1993 IS-13695-1993
  1. Rubber/PVC Sole and heels

    1. Impact test (IS:12254)

    2. Thickness

    3. Flex resistance testing (Ross Flexing) IS:3400(Part-XVI-)/12240(Part-7)-1988.

    4. HardnessIS3400(Part-II)/12240(Part-6)-1988

    5. Lead Content IS:12254-1993

    6. Volatility IS:12254-1993

    7. Relative Density IS:3400(Part-IX)-1978/IS:12254-1993

    8. Tensile Strength and elongation at break IS: 12240 (Part-6)-1988

IS:13695-1993/IS:12254-1993

  1. Rubber –upper testing –

    1. Thickness

    2. Relative density

    3. Hardness

    4. Aging tests-heat treatment IS-3400(Part-IV)

    5. Adhesion test –fabric and rubber IS-3400(Part-V)

    6. Oil Resistance test

    7. Air leakage Resistance

 

Hand protectors
  1. Safety Gloves(Natural Rubber Synthetic Rubber etc.)
IS:4770-1991
  1. Thickness

  2. Tensile Strength

  3. Elongation at break

  4. Tear strength

  5. Tension set

  6. Tensile Stress at 200% elongation

  7. Moisture Absorption

  8. After ageing

    1. Tensile Strength

    2. Elongation at break

  9. Test Potential and Leakage current

  10. Breakdown voltage

 

  1. Safety Clothing /SafetyGloves ( Leather )
IS:2573-1986
  1. Size and Dimension
  2. Tensile Strength
  3. Elongation at break
  4. Crackiness of grain
  5. Chromium Content
  6. pH value

 

  1. Hand protectors Safety Clothing (PVC Coated fabrics Double textured rubberized Water proof ness fabrics)

IS:6110-1983 IS:3322(Part-I)-1987

  1. Water proofness test

  2. Breaking Strength

    1. Longitudinal direction

    2. Transverse direction

  3. Accelerated Ageing

  4. Resistance to cold

  5. Resistance to acid & alkali.

 

INSTITUTIONAL FEE

The present charges for the services rendered by the laboratory for testing of different types of Non-Personal Protective Equipment are given below:

            Non- Respiratory Personal Protective Equipment  

Type of Respirator

Institute Fee (Per Sample)

Safety Goggles, Safety Helmet, Face Shield, Safety Hand-gloves, Safety Ear Muff and Ear Plug, Chemical Apron / Suit

Rs. 660/-

Steel toe cap and Upper Leather and Sole of Safety shoe

Rs. 1980/-

Safety Belt & Full Body Harness

Rs. 2200/-

* The samples along with institute fee (Demand Draft in favour of Central Labour 
   Institute, Mumbai) should be submitted 15 days in advance for reports.



 Flame
Proof Equipment Approval

Flameproof Enclosures Approval

DGFASLI is the approving authority for granting approvals to the flameproof enclosures being used in manufacturing process covered by the Factories Act, 1948, as per IS: 2148-1981. DGFASLI is also granting approvals to other equipment like increase safety, intrinsically safe equipment, subject to the fulfillment of the requirements of the Code of Practice IS 13408 (Part I)-1992.

(A) The process of certification:

  1. Equipment has to be tested by approved testing authority.
  2. Carbon copy of test report of the equipment and attested copy/copies of drawing(s) certified by the testing authority must be submitted for approval
  3. Chemical composition analysis of light material used such as LM4, LM6 must be carried out in a Government recognized testing laboratory and a copy of the report shall be submitted along with the proposal. The chemical analysis report shall be of the material used for the prototype.
  4. For gas Group II C enclosures in addition to the requirements at 1, 2 & 3 above, the details of the client to whom the equipment is being supplied shall be furnished.
  5. The approval for gas Group II A and II B pro-type is valid for a period of five years after which it shall be revalidated.
  1. PROCEDURE FOR REVALIDATION OF APPROVAL
  1. The party/manufacturer shall submit the proposal for revalidation to DGFASLI at least three months in advance along with application for revalidation of approvals and following documents :–
  1. the mailing list of customers, along with their contact numbers, to whom the equipment has been supplied;
  2. a certificate on the letter head of the company/firm that such equipment for revalidation has/have not undergone any change in design during the period and that the equipment has/have been manufactured strictly in accordance with the drawing specifications certified by the testing authority and is/are identical with the one tested and certified by the testing authority.
  3. a copy of the valid BIS licence duly attested by the company/firm;
  4. a copy of approval(s) including permissible variations, issued by DGFASLI, duly attested.
  1. For further validation of approval of such equipment after five years (i.e. 10 years from the first approval), further approval shall be issued after re-testing of the said equipment by approved testing authority. The procedure for approval shall be as per instruction given in (A) above.

 

  1. OTHER IMPORTANT INFORMATION
  1. The approval no. and date of DGFASLI approval must be inserted in the nameplate of the equipment.
  2. Obtaining licence from BIS, on approval from DGFASLI, is a must.
  3. Approval may be amended, reviewed or withdrawn, if considered necessary. Any violation/deviation observed in any manner shall result in revocation of the approval issued.
  4. Officials of DGFASLI dealing with subject matter shall visit the unit manufacturing flameproof electrical equipment as necessary. The compliance report on the basis of suggestion/observation made by him/them in his/their report shall be required to be submitted to DGFASLI in the prescribed time limit.

After getting the proposal from the manufacturer, the same is scrutinized and if found in order in all respects, the approval is granted within a period of five weeks. In case of any discrepancies, the same is conveyed to the party within a period of one week.


Material Safety Data Sheet MSDS

Occupier of every factory involving hazardous process is statutorily required under Section 41-B(1) of the Factories Act to disclose in a prescribed manner all the information regarding danger, including health hazards and the measures to overcome such hazards arising from the exposure to or handling of materials or substances in the manufacture, transportation, storage and other processes, to the workers employed in the factory, the Chief Inspector, the local authority within whose jurisdiction the factory is situated and the general public in the vicinity.

Model Rule No.82-C made under Section 41-B read with Section 112 of the Factories Act has specified that the occupier of any factory carrying out hazardous process shall arrange to obtain or develop information in the form of Material Safety Data Sheet (MSDS) in respect of hazardous substances or material handled in the manufacture, transportation and storage in the factory.

Every such MSDS sheet includes information on identification/labeling; hazardous ingredients, physical and chemical characteristics; potential fire, explosion and reactivity of the hazardous substances; health hazards involved; primary root of entry; permissible limits of exposure prescribed in the Second Schedule under Section 41-F of the Factories Act; precautions for safe handling and use of hazardous substances; emergency and first-aid procedures, date of preparation of MSDS as well as name, address and telephone number of the manufacturer, importer, occupier of other responsible party, preparing or distributing the MSDS.

This division provides MSDS on request to industries at a nominal payment, enquires can be made by writing to Director- In charge (MIS)

National Referral Diagnostic Centre (NRDC)

Occupational disease assume a significant dimension in any country and more particularly, in a developing nation like India.  There is a considerable prevalence of common disorders like lead poisoning, silicosis, asbestosis, pesticides poisoning, occupational hearing loss, etc. among the industrial workers.

While the emphasis on the prevention, early diagnosis and management of occupational diseases are well accepted as the proven strategy equally important is facilitating for confirming the cases of occupational diseases as these involve legal liabilities. In recognition of this need as well as in recognition of the fact that such referral facilities are scarce in our country, a NRDC has been established by DGFASLI in the Central Labour Institute.

Suspected cases of occupational diseases are referred to these centers by Factory Medical Officers, Medical Inspectors of Factories, Certifying Surgeons, Public hospitals, etc. for opinion. The cases are physically examined, subjected to investigations at the institute and report is given by co-relating with the occupational history before arriving at a confirmed diagnosis.