Document mBgVG9pQgzzXQ352ke837KR5Q

ATTACHMENT 1 RECOMMENDED (INTERIM) PROCEDURES FOR ASBESTOS BRAKE AND .CLUTCH SERVICING AS OF NOVEMBER 1978 The National Institute for Occupational Safety and Health (NIOSH) has research underway concerning dust exposures during brake and clutch ser vicing* Due to preliminary data demonstrating significant asbestos expo sures during presently used brake and clutch servicing techniques, NIOSH has reviewed alternate techniques whereby asbestos, exposures are reduced. It should be mentioned that vacuum cleaner testing and efficiency data at this time are not available. However, when this research is completed this data will be included in the recommendations as applicable. The following are interim procedures by NIOSH to minimize asbestos dust exposures. 1. Where possible, an area should be designated and constructed for brake and clutch repairs and servicing. Entrances into this area shall be posted with the following asbestos exposure warning sign printed in letters of sufficient size and contrast to be readily visible and legible: Asbestos . Dust Hazard Avoid Breathing Dust Wear Assigned Protective Equipment Do Not Remain in Area Unless Your Work Requires It Breathing Asbestos Dust May Cause Asbestos is and Cancer 2* Dust shall first be cleaned from brake drums, brake backing plates, brake assemblies, and clutch assemblies using an industrial type vacuum cleaner equipped with a high efficiency filter system (> 99% efficiency of 0.3 ym diameter aerosols). After vacuum cleaning, any remaining dust shall be removed using a water dampened cloth or rag. Under no circumstances shall compressed air or dry brushing be used for cleaning. Where wet brushing is necessary for cleaning an approved respiator shall be worn. 3. During brake pad grinding, riveting, and punching operations local exhaust ventilation and dust collection systems shall be designed, constructed, installed, and maintained in accordance with the American National Standard Fundamentals Governing the Design and Operation of Local Exhaust Systems, ANSI Z9.2 - 1977 to meet the asbestos air borne exposure standard. 10