Document X8wdeLbn2VN4EyyYbRZdVvaL4

IZ\ Johns-Manville Products Corporation Greenwood Plaza Denver, Colorado 8021 7 (303) 770-1000 July 19, 1974 Hearing Clerk Food & Drug Administration Room 6-86 5600 Fischers Lane Rockville, MD 20852 Dear Sir: On September 28, 1973, the Food & Drug Administration published in the Federal Register a Notice of Proposed Rulemaking relating to asbestos particles in food and drugs (38 F.R. 27076) . Johns-Manville Products Corporation submitted comments to FDA with respect to the Notice of Proposed Rulemaking by our letter of December 21, 1973 to the Hearing Clerk. Since filing our written comments with FDA, we have been made aware of new data which we are enclosing and request being incorporated as part of the official record on this Proposed Rulemaking. In this regard, we are enclosing the following documents: 1. A study by Dr. Morris Kleinfeld, et al, entitled: "A Study of Workers Exposed to Asbestiform Minerals in Commercial Talc Manufacture", reprinted from Environmental Research, Vol. 6, No. 2, June 1973. 2. A study by Dr. Morris Kleinfeld, et al, entitled: "Mortality Experiences Among Talc Workers: A Follow-Up Study," published in the Journal of Occupational Medicine, Vol. 16, No. 5, May 1974. 3. Asbestos Standard for Metal and Non-Metallic Open Pit Mines, as promulgated by the Department of the Interior on July 1, 1974 (39 F.R. 24316). 4. Amendments to National Emission Standards for Asbestos, as promulgated by the Environmental Protection Agency on May 3, 1974 (39 F.R. 15396).