Document 5keEDMmrjM2XqG8nr29xq8aD

FRICTION MATERIALS containing mmsm cwra by PHENOLIC RESIN BINDER RISK ASSESSMENT FOR FREE ASiESIBS - I. AS PER ARTICLE BY L. LAMGNT H90M, SAFETY SCIENCES DEPT., INDIANA UNIVERSITY OF PENNSYLVANIA (AIHA JOURNAL 1/SB "ASBESTOS EXPOSURE ASSOCIATE* WITH AUTOMOTIVE BRAKE REPAIR IN PENNSYLVANIA") BRAKE REPAIR IN SERVICE STATIONS, CM DEALERSHIPS AND MUFFLER SHOPS RESULTS IN MEAN TIME-WEIGHTED AVERAGE EXPOSURE Of <0.002F/CC FOR 8-HRS. OF FIBERS. Z. ACCORDING TO JACKO AND DUCHARME < 1% Of BRAKE HEAR DEMIS IS FREE ASBESTOS (EPA SPONSORED STUDY - 1972). 3. ONE CALCULATION FOR POTENTIAL EXPOSURE TO FREE ASBESTOS (WHICH IS SUBJECT TO PROPOSITION S) IS: <0.002F/CC X <1% = <f.*f/CC 2 X 10 '5F/CC 4. ASSUME MAN BREATHES 20M3 IN 24 HOWS, THEN TOTAL AIR BREATHED IN 8 HOURS IS 6.7M3 6.7 X 106 CC 5. TOTAL FIBERS (FREE ASBESTOS) BREATHED IN THIS EXAMPLE IS (<2 X IO~5 F/CC) X (6.7 X 106 CC) = 13.4 X 10 = <134 FIBERS (FREE ASBESTOS) 6. CALIFORNIA GUIDELINE ASSUMES AUTOMATICALLY THAT THERE IS NO SIGNIFICANT RISK WHERE TOTAL EXPOSURE TO ASBESTOS IS < 100 fiters per day COMPARISON: <134 FIBERS PROJECTED VS 100 FIBERS STANDARD HWCPI0000222 7. ACTUAL BENDIX FRICTION MATERIAL LABEL STATES: MMGit CONTAINS ASBESTOS FIBERS AVOID CREATING DUST CANCER AND LUKE DISEASE HAZARD 8. STATE OF CALIFORNIA RECOMMENDED LABEL: 'WARNING: THIS PR0OUCT MAY CONTAIN A CHEMICAL KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER." 9. CONCLUSION: THE PROJECTED EXPOSURE UNDER MEASURED AM) REPORTED CONDITIONS Of ACTUAL USE SHOW POSSIBLE BORDERLINE EXPOSURE IN EXCESS OF THE STATE OF CALIFORNIA'S LEVEL OF "MO SIGNIFICANT RISK". IF RECOMMENDED PRECAUTIONS (FM5I VENTILATION CONTROL AND NO AIR HOSES) ARE USED, EXPOSURES PROBABLY WOULD BE CONSISTENTLY BELOW CALIFORNIA'S "NO SIGNIFICANT RISK" LEVEL. THEREFORE, THE NEED FOR LABELING IS QUESTIONABLE. HOWEVER. SINCE WE ALREADY LABEL BENDIX FRICTION MATERIAL WITH A WARNING THAT WE BELIEVE TO BE "CLEAR AND REASONABLE" AND IS ACCEPTED NATIONALLY AND IN OTHER STATES, WE BELIEVE WE FULLY COMPLY WITH THE SPIRIT AS WELL AS THE LETTER OF PROPOSITION 65 REQUIREMENTS ALREADY. THEREFORE, NO FURTHER ACTION IS REQUIRED BY THE BUSINESS AREA. J.B. CHARM 2/19/88 HWCPI0000223