Document xjk6m8mpmV07OLrX4Q8847zw6

FILE NAME Talc TALC DATE 1979 May 30 DOC TALC490 DOCUMENT DESCRIPTION Naval Memo RE Asbestos Content in Certain Materials } pow 6101C 7| 7 Sots mi a Sar 35 . 1979 From Commander Naval Sea Systems Command 30 MAY oS To Commander Mare Island Naval Shipyard nek Subj : Asbestos Content of Magnesium Silicate Raw Materials Used in Manue o facture of MIL 24441 Epoxy Coatings a Raf a NAVSEC Project Order N6519779P090029 Oe . ~ NAVSHIPID NAVSHIPID Nytal Mare 1. It is requested that Mare Laland Naval Shipyard evaluatemagnesium silicate from oo. Dy me | Vanderbilt Co. 300 ie T. * Pfizer Co. Minerals & Pigments CP 20-30 | Cyprus Mistion | en " ae 139 . Co. _ Desert Minerals Talc Fine 80 . mg , o . ; . ue ot rene - to determine asbestos fiber content no ae Although is identified present also and the major trtermeomloiltiete mineral with 2. fiber in asbestos other min- cral fibers are chrysolite ampsite crocidolita anthoplylite and actino- ; Lite- These fibers are to be if reported , : also along silicate pigments paragraph shall The magnesium of 1 3. one also be @valuated physically chemically In particular oil absorption should be determined and compared to the material used to make reformulated MI 24441 materials i.e. Pfizer Cp 20-30 magnesium silicate _o- the effort is withinthe scope of fundingof reference a Blind copy to | NAVSEA 6101E 6159C 921TH3 Prepared by John J. 05D21 Typed by L. Sendejo Hager May 1979 : oe, oe I 7 , B 109398 a bea eemper eee + PS ci a ee 000156