Document nNNp8g8r0KGBvy10E0gm97e7a

FILE NAME: Abex (ABX) DATE: 1969 Sept 25 DOC#: ABX183 DOCUMENT DESCRIPTION: Internal Memo to Medical Dept, Chicago, from Abex Research Dept. Comet 30 Composition Shoe Processing CH EM ICA L D EPARTM EN T Abex Corporation RESEARCH CENTER MAHWAH, N EW JE R S E Y September 25, 1969 C *" To: Mr. C. H. Borcherding, Jr. Medical Department - Chicago Subject: Comet 30 Composition Shoe Processing Confirming our recent telephone discussion about the fiberizing of the asbestos at the Railroad Avenue plant, only a bare minimum of attrition is required to permit accurate weighing of the standard charge. Hood ventilation as used in the present weigh area should be adequate provided the operation is done in a vented area. As far as the ventilation at the mixers is concerned, the present prac tice in the plant has become somewhat relaxed. The more recent formula releases indicating the approved processing steps have followed actual operation rather than the more laborious, but safer, steps originally proposed by Research. Specifically, this refers to the use of a cover on the mixer during any blending step. There, is no reason why vented pressure lids similar to Brakeblok's cannot be used for the railroad shoe production. Since it is generally easier to acquire the asbestos in pressure packed bags rather than loose fibers, the former is preferable and no blending problem would be expected in the kneader mixer. AMj/jr cc; R. H. Arneson J. V. Bollard C. C. Blackwell JT, MD AMG/File D-380 Arvon M. Griffith SEP 2 91969 ABEX CORPORATION MEDICAL DEPT. SPNY 005399