COSMETIC TALC Minerals of Interest The asbestiforin minerals of p r i m a ry concern in regard to cosmetic talc are fibrous serpentine (chrysotile) and fibrous araphiboles (tremolite and anthophyllite)* Analytical Techniques Used at FDA The main techniques used at FDA are differential thermal analysis for the determination of serpentine minerals and x-ray diffraction for the determination of amphibole minerals.

MEMORANDUM OF MEETING August 11, 1972 : Between : FDA Representatives : Robert M.

DETERMINATION OF ASBESTOS BY OPTICAL MICROSCOPY The six kinds of asbestos can he distinguished from talc and from each other by their refractive indices, other optical crystallographic properties and morphology as determined with a polarizing- microscope.

MEMORANDUM DEPARTMENT OF HEALTH, EDUCATION, AN D WE L FARE PUBLIC HEALTH SERVICE FOOD AND DRUG ADMINISTRATION TO : DIVISION OF COSMETICS TECHNOLOGY PRODUCT COMPOSITION BRANCH ATTENTION: RONALD L.

D ETECTION OF A SBESTIFO RM A M PH IBO LE IN TALC FOR COSM ETIC USE The method for the detection of asbestiform ' amphibole in talc for cosm etic use consists of initial analysis for amphibole m inerals above the 0.5% (w/w) level, followed by characterization of the amphibole m ineral present, if any, as asbestiform or nonasbestiform by dispersion staining/optical microscopy.

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(C) Basis for toxicity for each hazardous material such as established OSHA standard (TLV), in appropriate units and/or LD^q > showing amount and mode of exposure and species or LC^q showing concentration and species.

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FILE NAME: Talc (TALC) DATE: 1976 Mar 1 DOC#: TALC091 DOCUMENT DESCRIPTION: Telephone Call Record between Dr.

FILE NAME: Talc (TALC) DATE: 1975 DOC#: TALC088 DOCUMENT DESCRIPTION: Federal Register Notice RULES AMD REGULATIONS 11865 Title 20-- Employees' Benefits rHAPTER III-- SOCIAL SECURITY ADMIN ISTRATION, DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE [B egs.

FILE NAME: Talc (TALC) DATE: 1973 June 27 DOC#: TALC077 DOCUMENT DESCRIPTION: Newspaper Article - US Asked to Ban Asbestos in Food and Drink Processing A 10 W ednesday, Ju n e 27, 1973 o By STUART S.

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