Document 4J95NwZo64kkoje3o89xp0V9G
f I PLAINTIFF'S i EXHIBIT f TT/K)393 ia
RECOMMENDED HEALTH SAFETY PRACTICES
For Handling And Applying Thermal Insulation Products Containing Asbestos
for additional copies, write:
Executive Secretary National Insulation Manufacturers Association, Inc. 441 Lexington Avenue, New York, N.Y. 10017
NATIONAL tzf> MANUFACTURERS ASSOCIATION
INTRODUCTION
CONTENTS
The modern mass production of hundreds of natural and synthetic materials, such as as bestos, has brought the need to protect work ers from certain health risks, known or sus pected.
Manufacturers of Thermal Insulation Prod ucts containing asbestos have for years been taking protective measures to eliminate exces sive exposures to inhalation of dusts that may be injurious.
Based on the fact that all materials can be handled safely, the National Insulation Manu facturers Association recommends the follow ing practices for handling and applying Ther mal Insulation Products containing asbestos and/or other potentially injurious materials to protect the worker.
Insulation contractors and applicators are urged to study tjiese recommended practices carefully and toiwe that they are observed by all workers hamfflhg insulation materials. As with Safety Regulations, it is in the interest of both employer and employee to see that health protection practices are strictly ob served.
Prepared By
COMMITTEE ON SAFETY AND HEALTH
****** V
'
NATIONAL INSULATION
MANUFACTURERS ASS'N.
----- ........... 1
2nd INTRODUCTION.......................................... COVER
HOUSEKEEPING................................................ 4
PIPE AND BLOCK INSULATIONS................................................... 5-8
CEMENTS............................................................ 9-10
SPRAYING OF THERMAL INSULATION......................................................11-12
STRIPPING OF THERMAL INSULATION....................................................... 13-14 RESPIRATORY EQUIPMENT......................... IS
FOR HEALTH SAFETY'S SAKE
Three major points to keep In mind in the handling and use of materials containing asbestos: Take every precaution to keep dust to a minimum. Wear U.S. Bureau of Minesapproved Respirators when ex posed to excessive dusts. (See Page 15) Maintain good housekeeping at all times.
HOUSEKEEPING
PIPE AND BLOCK INSULATIONS
An organized housekeeping program should be maintained in all areas and on all operations aLall times.
A major source of excessive airborne dust is from loo& materials, scrap and debris distributed throughout the job area and disintegrated by trampling on, running over, etc. Much of the airborne contamination can be eliminated by exercising simple good housekeeping practices.
Specific standards and practices designed for providing safe, clean and orderly working conditions should be defined.
Efficient supervisory control, planning of systematic cleaning plus day to day follow-up are the basic requirements for dust control and injury prevention.
Warehousing. Storage and Handling
Under normal conditions, the handling, storage and ware housing of undamaged cartons of pipe and block insulations, containing asbestos, present no health safety problems. If cartons are broken or materials damaged while insulation is being handled, the following steps should be taken:
1 If spillage occurs, debris should be cleaned up immediately. Repack usable materials.
2 Care should be taken to avoid generating dust when piling, stacking or placing pieces into containers.
3 When cleaning spillage, vacuum equipment is recommended for picking up dust and small particles.
4 If large quantities of spillage occurs and cleaning involves sweeping and/or shoveling that could create excessive airborne dust, `Respirators should be worn.
5 Only usable material should be returned from the job site to the warehouse.
6 When returning material from the job site, clean dust and debris off cartons. Repack odd lot pieces. Close cartons.
Burtau / Mint9-appro\ td retpiraton. Sit page IS.
Pipe and Block Insulations (corn'd}
Pipe and Block Insulations (cont'd)
Fabrication in
Warehouse and
Job Site Shops
1 Open and remove the material from cartons with care.
2 Handle and stack pieces of material in a manner that will avoid generating dust and breakage.
3 Mechanical dust collecting systems adequately designed to remove dust at the source should be installed on power-operated, fixed and portable-equipment in the warehouse shop and/or in the job site shop.
4 All machines should be furnished with suitable waste containers for the collection of scrap and waste to prevent the material from falling on the floor and generating dust.
5 Shop-fabricated pieces of Thermal Insulation such as fittings, segments, etc., should be placed in containers. Care should be taken when handling these pieces during piling, stacking and packing.
6 Containers should be closed after packing and remain closed until the material is used.
Application Procedures
1 Unpacking and application of the material should be done in a manner that will minimize airborne dust.
2 Avoid dropping, throwing or unnecessary rough handling of insulation materials.
3 Keep floors and surfaces clean of scrap, shavings and debris. Put unusable material into waste containers immediately.
4 Hand sawing, cutting, jacket stripping, etc. should be done in a manner that will create minimal airborne dust. Use of proper methods and tools will help considerably towards dust abatement.
5 When working in confined spaces, portable dust collectors or exhaust blowers should be provided to remove dust from the source.
(Continued on Next Pege)
Pipe and Block Insulations (cont'd)
CEMENTS
Application Procedures (Cont'd)
I I
Warehousing, Storage and Handling
Handling and storage of closed bags containing cements do not present health safety hazards provided bags are unopened and not broken.
6 If conditions prevent collecting or exhausting dust from the source, use exhaust blowerrto provide general room air changes.
7 Avoid exhausting into other working areas.
8 In confined spaces, if mechanical exhaust equipment cannot be used, `Respirators should be worn.
9 When wiring or banding insulation and applying jackets or facings, care should be taken to avoid generating excessive dust, using the precautionary measures described above.
10 Surplus usable materials should be placed in cartons, which should be closed and returned to the warehouse.
'Bureau of Minet-opprovtd reepiratore. See pope IS.
1 When unloading railroad cars and trucks, if there is excessive loose material resulting from opened or broken bags, Respirators should be worn during clean-up and unloading.
2 Spillage should be cleaned up and open or broken bags repacked, resealed or discarded immediately to prevent distribution of dust into other areas.
3 If bags are damaged and spillage occurs in the warehouse, material should be cleaned up immediately to prevent distribution into other areas. Vacuum equipment is recommended for this cleaning.
4 If large quantities of spillage occurs and cleaning involves sweeping and/or shoveling that could create excessive dust, `Respirators should be worn.
* Bureau of Mixee-approved reepiratore, See page 25.
Cements Ccont'd)
Application of Cements
Opening, dumping and discarding of bags should be done with the utmost care to avoid generating excessive dust.
pen the bag wide enough to empty ithout shaking. 2 When dumping, keep bag on the mortar box mixing level to avoid dropping.
3 Do not shake bags. 4 Place empty bags in a container, wet
down contents, and discard.
5 Mixing area should be well ventilated but free from heavy drafts that will cause dry material to become airborne.
6 Material should be mixed in a mortar box, pail or tub and not on the floor.
7 Wet the material and mix into a slurry as quickly as possible.
8 When mixing cement in a confined space where proper ventilation is inadequate, 'Respirators should be worn.
..
Cleaning
1 Bag breakage, cleaning up dry cement and discarding bags at the mixing area should be done in the same manner as recommended under Warehousing, Storage and Handling.
2 Wet down tools, mortar boxes, wheelbarrows, mixing containers, and any spillage before scraping and cleaning.
3 Cements should be handled wet whenever possible. Wet material will create no dust problem.
Bureau of Miue*-npprored reepirotoro. Set page IS.
SPRAYING OF THERMAL
INSULATION
Spraying Areas
Spraying of Thermal Insulation Products containing asbestos requires special precautionary measures. Refer to the Sprayed Mineral Fiber Manufacturers Association for Sprayed Fiber Application Practices.*
1 The equipment and machinery to be sprayed should be shielded by adequate wind breaks and, where practicable, drop cloths to prevent excessive dust and contamination in adjacent areas.
2 Workers not engaged in the spraying operations should wear 'Respirators when entering an area within 15 feet of the spraying machine, nozzle or equipment.
3 Where Sprayed Fiber Application Practices cannot be followed and excessive airborne dust is generated, it is recommended that portable mechanical exhaust ventilation be used to remove airborne dust. Exhaust must be located to avoid contamination of other occupied areas.
Application
1 All personnel in the immediate area engaged in the machine feeding and spraying operation should wear 'Respirators, whether in confined or open areas, ventilated or not ventilated.
2 'Respirators should be worn after the spraying operation has been concluded and until the generated dust concentration has cleared.
IPor copy of Proetiftt. fcritt to Pxeetitiyt Secretary, Sprayed Mineral fiber Manufacturer! Aeeoeiation, P.O. Box 1*7, Meetfield. Sow Jereey 07090 Bureau of Minee*opproved reepiratort. Sot page 15.
Spraying of Thermal Insulation loom'd)
STRIPPING OF THERMAL INSULATION
Other Workmen
All personnel not involved with the machine feeding and spraying operation should be kept from the spraying area until the generated dust concentration has cleared.
Cleaning
1 Spillage and excess spraying materials should be cleaned up immediately after spraying operations have been completed.
2 Settled dust amffly material should be removed from aB surfaces to avoid airborne contamination. Vacuum cleaning is recommended for this purpose.
3 Scrap spray material should be wet down and placed in closed containers for disposal.
4 Tools, ladders, etc. should be cleaned wet.
5 Avoid brushing, sweeping and shoveling dry material whenever possible.
6 'Respirators should be worn during cleanup.
Bureau of Mintt-approrei reipiratoro. St* page IS.
12
Stripping Area
Careful work methods, use of proper tools, and wetting down will minimize excessive dusts in stripping operations.
1 The area in which stripping takes place should be confined by means of curtains, portable partitions, etc., to prevent excessive dust contamination in adjacent areas.
2 If area cannot be confined, only workmen engaged in stripping should be permitted in the work location.
Stripping and Tearing Off
1 All personnel in the stripping area engaged in tearing off, handling, cleaning and disposing of material should wear Respirators.
2 Where circumstances permit, materials should be wetted down prior to and during removal.
3 Where applicable, portable mechanical exhaust ventilation should be used to remove airborne dust
4 Avoid unnecessary re-handling of scrap.
(Continutd on Next Page)
'Bitrtau of Mintt-approred reepiralori. See page IS.
Stripping of Thermal Insulation (cont'd)
RESPIRATORY EQUIPMENT
Stripping and Tearing Off Ccont'd)
5 Locate truck, dumpster bucket or final disposal equipment as close to stripping site as possible.
6 Wet down scrap material before shoveling, hauling or dumping.
7 Do not permit accumulation of scrap and debris on flvo; and other surfaces.
8 Vacuum equipment is recommended for cleaning up during and after stripping.
Other Workmen
1 Personnel not involved in the stripping and tearing off operation should not be permitted in the stripping area.
2 If it is essential for other workmen to be in the work area, `Respirators should be worn by them.
Bureau of Mintt-approi td rttpiraton. St* pagt IS.
14
Only U.S. Bureau of Mines-approved respiratory equipment is recommended for use with asbestos, silica and other pneumoconiosis-producing dusts. Approved respiratory equipment must be used at all operations where dust control is not sufficient to maintain airborne dust concentration within allowable limits for asbestos and other pneumoconiosis-producing dusts, as established by governmental and professional agencies.
The efficiency and effectiveness of respiratory equipment is dependent upon proper care, cleaning and maintenance. A systematic procedure should be established to assure that this is done.
Lists of currently approved respiratory equipment can be obtained from:
Bureau of Mines United States Department of the Interior Nineteenth and E Streets, N.W. Washington, D.C. 20240
American Industrial Hygiene Association 14125 Prevost Detroit, Michigan 48227