Document x4Oq12GrM1YOq6jE0ewoM9Xb

November 14, 1977 9:30 A.M. I talked again with Ken Freeman concerning 1 fiber per 1,000 particles. Last week Mr. Freeman talked with Ben and he talked with the people who are developing this procedure. Ben was not very pleased. Apparently the method is for analyzing bulk samples. It is based on an optical microscope. Ben thinks if such a system is to be used, it should be done with the electron microscope. He does not think it has great merit. CPSC sort of agrees with Ben but are obligated to use the optical microscope at 450 X, which is the current OSHA procedure for asbestos. They are not going to change. GP0J8 |*t5 l Mike Thursday, November 10 I called Ken Freeman. I asked if everything he had sent over could wait until Wednesday, November 16. He indicated that he thought it could. He will be available to see you that afternoon. Any time you arrive will be convenient. I told Mr. Freeman about CPSC's new idea for regulating asbestos-containing spackle and joint treatment compound -- that is, 1 fiber per 1,000 particles. I informed him that Dick Ent2 had suggested you talk to Jim Walker, who referred you to Schefelbein and that Schefelbein planned to contact CPSC scientists. Mr. Freeman was interested and mentioned that he would follow up on this. He asked several questions that I could not answer. 1. Did CPSC contact you, or you them? I told him I thought Dale Ray of CPSC had contact you, but that I wa9 not certain. 2. He asked if the 1 fiber per 1,000 particles was referring to measuring air. UfcOdO