Document G6dM6vadErvR1M1yQoad2O1pr

PLAINTIFFS E X H IB IT WCD-329 New York University T .Peparlmeni o f Chemistry 4 Washington Place, Room 410 New Y ork, N .Y . 10003 Telephone: (212) 598-3427 ??// \rvI Mr, George J.'Dippold Whittaker, Clark and Daniels, Inc. 1000 Coolldge Street .. South Plainfield, New Jersey 07080 September ; Dear Mr. Dippold: ^ The analysis of the four most recent talc samples you have sent me has just been completed, with the following results: Sample Talc - Chlorite a-Quartz Dolomite Calcit No. 2450, Lot #7390 77% 15% No-. 46o8, Lot #821708 70% 5% n.d. 2% 8% 3% n.d. 20^ 77% 12% 7% 2% n.d. No. 141, Lot #82172 100^ n. d. n, d. n.d. n.d. SamPle^No. ^ 08, Lot #821708 in the tabulation above' showed some suspicious features 'in its x-ray diffraction nst-t-prin 4->,Q+. might have been due'to the presence of chrysotile. Therefore this .specimen was subjected to detailed examination by optical microscopy, and no chrysotile was found. iXictolon W optical * ; Sample No. 1615, Lot #921015 in the above tabulation showedsome features in its x-ray pattern that suggested that it might t K fcr mollte: Accordingly, fchlggfpecimen was s u ^ f c L d aboit S?5| r mllte COntent 15 ab0Ut by Wisht' and the chrysotile j^he,protocol described above is that which 'the PDA is tentative tv considering as their official testing procedure. That is the talc )= tested.first by the continuous-scan x-ray diffraction method S c s p L S 2 hln!fSiLPi f S S iS 0to5eryed in S c c S d 4 , ea b?eax ^ i M # b f s & s a s s s s i S b i S ' d i L i 's . t ,' pTease note' that the asbestos content ofTalc No. 16 15 Lot #0210 11afc.t]?e minlmum level of detectability. It is evident that 101"' if this lot is blended with, e.g., Talc No 141 Lot ^82172 -in -t-v. proportion of 1 part of the forler to 2 parts if .the letter the described abivS;6 W11 ** fUlly acceptable the-analytical protocol 81npo ro WCD 002474 tabbies* PRODUCT NUMBER lAsqHSTOE) //S PRODUCT OR10IN date 3 j 7 9 7 a LAW. REPORT MO. CODE IDENTIF (CATION PRODUCT LOT NO, //A ? Motf WORK PERFORMED EY INVOICE NO X - RAY D IFFRACTION AN AI.YSIS fPERCEMT1 T R E M O I.IT E c h y s o t ile A o.S' A LP IIA I'iDAP I 7 CHLORITF. DOLOMl 1'tz M A fiN C S ITE /A A NO MOM UP IT.C1 ED 7a/VCURVE piled |M i-older no. WCD 002473