Document aJv2Xvz2Zzm7Rob00XrJd347e

FILE NAME Brakes BRK DATE 1976 Nov 24 DOC BRK059 DOCUMENT DESCRIPTION Letter from Raybestos to AIA with Draft of Proposed Pamphlet on Brake and Clutch Service Hazards Manhattan Manhattan November 24 1976 H. WEAVER 31 CORPORATE DIRECTOR ENVIRONMENTAL CONTROL 123 123 STIEGL STRET MANHEIM Mr. R. H. Mereness PEN Executive Director Asbestos Information Association 1835 K Street N.W. Suite 402 Washington D. C. 20006 17545 SUBJECT Draft for Proposed AIA Pamphlet on Brake and Clutch Service Hazards Dear Bob Attached is copy of draft of proposed AIA information pamphlet per your request Copies also have been forwarded to the other persons listed below I should like to have them review and approve this or recommend changes before we release this for print or further circulation After your review and comment I'll be glad to forward a copy to Mr. Nerlinger at ASIA if you would like me to handle this or you may feel free to do so on your own whichever you prefer It may also be advisable to obtain comments from Automotive Parts and Accessories Association who are practically your next door neighbors at 1730 K Street as they also have released an Action Bulletin regarding the NIOSH brake of this bulletin also is attached service industry alert A copy Best regards ^' f \ EE EE EE EE I. H. Weaver grb att CC Messrs J. H. Marsh ! E. W. Drislane E. H. Feierabend S. K. Christian PRODUCED JM - 83 DRAFT BRAKE ASBESTOS LINING AND DUST HAZARDS AND CLUTCH SERVICE OPERATIONS Since December 1971 Federal asbestos standards have limited permissible exposure to airborne concentrations of asbestos fibers and have established procedures that must be followed when dust is created in the processing of asbestos containing materials In 1975 the National Institute for Occupational Safety NIOSH released preliminary results of an on going and Health survey that indicated significant asbestos exposures occur during brake and clutch servicing operations release The NIOSH warned of a poten- tial health hazard for of motor vehicle brake persons exposed to asbestos during servicing ! and clutch assemblies Operations studied included blow of automobile brake assemblies grinding of used truck brake linings and beveling of new truck brake linings The full extent of asbestos disease in brake servicing personnel is not known at present because this particular occupa- tional group has not been systematically studied up to now review However a of the scientific literature on the association between asbestos exposure and mesothelial tumors of the pleura and peritoneium has exposed in jobs revealed cases of these rare tumors in involving automobile brake servicing PRODUCPERDODUCED JM - 83 Previous studies of asbestos emissions from automobile brake lining wear showed that only a small fraction of the original asbestos content of the brake lining is found in brake drum dust Ref It was presumed this is due to thermal degradation of the fibers * during braking More recent findings indicate that enough asbestos is preserved to produce significant servicing proced" R ur eefs. expexeperrsdsuridngurexipnergsdeuxrpienrgsduring cortaingorake cortaingorake ee cortaingorake ~2- NIOSN ig research designed Continuing research NIOSH continuing following interim procedures in this area recommended recommended recommended the area to asbestos exposure exposure Service during performance operations recommended of automotive recommended automotive replace procedures current asbestos meant supplement supplement asbestos Occupational regulations administered adminsterd and Health Health FOR RECOMMENDED RECOMMENDED PROCEDURES FOR MINIMIZING MINIMIZING ASBESTOS DURING DURING SERVICING OPERATIONS l. If PoOSSible, an area shall be If designated all brake repairs, Entrances into this posted with area shall be Posted with Asbestos 2. During During servicing an air single single use or particulate filter as replaceable Enforcement Administration Administration hj -3 plates brake assemblies and clutch assemblies using an industrial type vacuum cleaner equipped filter system > 99 efficiency for 0.3 with a high um diameter efficiency aerosols After vacuum cleaning any remaining dust shall be removed using a rag soaked in water and wrung until nearly dry Under no circumstances shall compressed air or dry brushing be used for cleaning During arcing and riveting operations an approved respirator as described in 2 above shall be worn Grinding arcing machines shall be provided with local exhaust that worker exposures are maintained at least ventilation such : below the 1976 OSHA asbestos standard Ref 3 At minimum the dust bag of the arcing machine shall be removed and replaced with the hose of a high efficiency industrial vacuum cleaner as described in 3 above Industrial vacuum cleaner bags containing asbestos dust and cloths used for wiping brake and clutch assemblies shall be sealed in plastic bags and labeled with the label printed in letters of sufficient size readily visible and legible following warning and contrast to be Breathing Caution Contains Asbestos Avoid Breathing Asbestos Dust May Cause Fibers Dust Asbestosis ww All asbestos waste shall be disposed of in accordance with the * OSHA asbestos regulation Ref ) During removal of vacuum bags an approved respirator as described in 2 above shall be worn PRODUCED JM - 83 clutches 6 All floor cleaning in areas where brakes and are repaired shall be done with a high officiency industrial vacuum cleaner as described in 3 above Grinding arcing machines shall also be cleaned with such a vacuum cleaner or other suitable local exhaust ventilation system Any remaining shall be wiped with a damp cloth An approved respirator described in 2 above shall be used during the cleaning dust as Although adherence to the above procedures should minimize con- tamination of work clothing it is required that the appropriate portions of the OSHA regulations on asbestos Ref special clothing change rooms etc. be followed 5 concerning REFERENCES Brake Lining Decomposition Products by Jeremiah R. Lynch Urban National Center for and Industrial Health U.S. U.S. Public Health ation Service Journal of the Air Pollution Control Volume 18 No. 12 pages 824-826 1968 Associ- Asbestos Exposure During Arthur Laboratory Brake Lining Maintainence and Repair by Arthur N. Rohl M. Langer Mary S. Wolff and Irving Weisman Environmental Science he; Mount Sinai School 4 of Medicine New York Environmental Research Volume pages 110-128 1976. ony PRODUCED JM83 re Pastel in oo , , oe iter * ae rat hs Pmt fee ey id Bee, 4 . - nae