CTFA Method J 4-1 10-7-78 Pagai ASBEST1FORM AMPHIBOLE MINERALS IN COSMETIC TALC Part I: X-ray Diffraction Method Part II: Optical Microscopy and Dispersion-Staining Method Introduction The method which has been adopted for the detection of amphibole minerais in cosmetic talc is the generally accepted method of x-ray diffraction.

PLAINTIFFS EXHIBIT WCD-247 O cto b er 5 , *$&?

% PLAINTIFFS FEOXRHIBIDITENNTOIF,.I&CA~TIOPN6 ^ ^ 7 /PRO DUCT'DATA 7*23 LO MICRON TALC fR.C.)* * k, am--.

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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.

CAM-35

CAM-45

CAM-161

CAM-219 CAMC-Logiudice-001089 CAMC-Logiudice-001090 CAMC-Logiudice-001091 CAMC-Logiudice-001092 CAMC-Logiudice-001093 CAMC-Logiudice-001094 CAMC-Logiudice-001095

CAM-272 ITA-Sabatelli-000524 ITA-Sabatelli-000525 ITA-Sabatelli-000526 ITA-Sabatelli-000527

CAM-366

PLAINTIFFS EXHIBIT CAM-383 TALC Hydrous Magnesium Silicate CAS * 14807-96-6 HANDLING SUGGESTIONS NIOSH respirators exhaust ventilation CAUTIONtThis product may contain up to 2% silica.

JMl Johns-Manville io E.

PLAINTIFFS L irEEuOXKHRIIiBdDITeEnNntToiff.RicCation T A LC ANALYSIS (ASBESTOS) PR O D U CT NUMBER- /(.IS 77UC PRODUCT ORIGIN DATE LAB.

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