Document m567L4kXbNaOryxRpy33Q6Dg

FILE NAME: Foseco (FOS) DATE: 1972 July 11 DOC#: FOS030 DOCUMENT DESCRIPTION: Letter } ;f ) U nited Sta tes' S te e l. C o rp o ra tio n 00 oAtfT r a t e r m r s o unon. pcmmsycvania July 11, 1972 Mr, E, J, Jago /> Commercial Development Manager Steel Mill Products Division Foseco-, Inc. P. O. Box 8728 Cleveland, Ohio 44135 Dear Mr. Jago: ``This is to acknowledge with appreciation your letter of May 24'in which you have indicated the asbestos content of your Proax-31 and Proflex G-3 which are used as hot.tops-in several of our mills. You indicate that after heating 2000 the residual asbestos fiber content will be below 2% in the case of Pro&x.-r31 and below 5% in the case of Proflex G-3 and that the -.former value is-well within OSSA limits. As you are no' doubt aware, OSHA promulgated a permanent health standard'for asbestos dust which was published in the Federal Register'of June 7, 1972. No mention is made in this stand ard, as far as I can observe, about any delineation between a safe and hazardous percentage of asbestos in a material. As a matter of fact, asbestos'"fibers are defined as any asbestos which is longer than 5 microns in size and under the s e c t i o n o n L a b e l i n g cautionsry labels must be affixed to all raw materials and products containing asbestos fibers unless the fibers have been modified by a bonding agent, coating, binder or other material so that during'any reason able foreseeable use, airborne concentrations in each o'f the exposure limits will- not be released. Therefore, the use of your two indicated hot tops will require that the dust ex posure of the workers utilizing these must be periodically determined. This asbestos standard is in my opinion so restrictive that it will probably result in the substitution of asbestos in various products in which it is today usee. FO ~00-0gi0000 j 77