Document o9wLLRdw9eEV2BgRzbwrEwVj7

FILE NAME: General Motors (GM) DATE: 1970 Sept 8 DOC#: GM029 DOCUMENT DESCRIPTION: Letter to Inland Manufacturing Division September 8/ 1970 Dr. George Rappaport Inland Manufacturing of General Motors Dayton, Ohio 45401 Division i'prv. V> V Dear Dr. Rappaport; I should like to thank you for the opportunity of discussing with you the results of Johns-Manville*s work on wear of brake linings. I believe that the data presented to you conclusively show that the decomposition products contain less than 1 per cent of chrysotile fiber. For this reason, the wear of brake linings is not considered to be a significant contributor of asbestos to the atmosphere. I hope to have clearance to send you the most significant parts of these reports for your further examination in the next few weeks. May I take this opportunity of again inviting you and any of your colleagues to the Johns-Manville Research 6 Engineering Center to discuss this problem in more detail and to assist you in planning any work, either at Inland or by an outside laboratory. Very truly yours, SS/rs bcc : L. Pundsack R. Blair M. Fenner W. C. Streib Dr. Sidney Speil, Director Corporate, Mining t Pipe Divisions