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Memoraridum for the Record Dr.

3* Asbestos Ex josure.

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Minutes of the Meeting of the CTFA Task Force on Methodology for the Detection of Asbestos in Talc held at the Johnson and Johnson Research Center, Tuesday, February 19, 197^* Present were the following: F.

D IFFER EN TIA L THERMAL ANALYSIS FOR SERPEN TIN E (CHRYSOTILE) IN TALC L The D ifferential T h e rm a l A nalyzer (DTA) p e rm its the detection of ch ry so tile and other serp en tin e m in erals in talc for co sm etic use.

MEMO RECORD FROM: AVOID ERRORS PU T IT IN WRITING DATE OFFICE TO: .u: rciam : DIVISION SUBJECT: As b e s Lor r e p o r t s a:ui u e : i o t o b e S f i i t t o n.iro i .

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3V 4 APPENDIX III Removal of Asbestos Fibers by Pall 0.2 Micro meter Absolute (AR) and Coarser ______ U l t i p o r W Membranes_______ Summary % The ability of the Pall 0.2 um* (AR), 3 urn (AP), and 10 um (AY) absolute filter membranes to remove asbestos was tested.

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