Document jNnNRkRkEXE8qwJeoze91o962

Chesebrough^onds Inc. R E SEAR CH LABORATORIES T R U M B U L L IN D U S T R I A L PARK, T R U M B U L L . C O N N E C T IC U T OSS11 PHONE; 203 377-7100 October 11, 1972 Mr. C. U. Driscoll President Whittaker, Clark & Daniels 100 Coolidge Street South Plainfield, New Jersey 07050 Dear Larry: For your information, I enclose a report dated September 29, 1971 from Walter C. McCrone Associates Inc. This covers examination of two samples of Whittaker, Clark & Daniels' talcs: Talc #1 is Whittaker, Clark & Daniels Lo Micron #1 Talc (CP Lot #225-1, WC&D Lot #9) 'Me #2 is Whittaker, Clark & Daniels Talc 1615 (CP Lot #2*116-33, WC&D Lot #412615) Before sending these to McCrone Associates, we had already examined these samples by X-ray diffraction and they had shown no trace of asbestos within the limits of that method. Accordingly, our request to McCrone Associates was limited to examination by electron microscope and electron diffraction to look for trace amounts of asbestos. We have no objection to making this information available to you, but if you wish to make it public in any fashion, I think we may wish to discuss the question with McCrone Associates. . Sincerely yours, MB/bm att. Murray Berdick Director of Applied Research P L A IN T IF F S EXHIBIT CAM -147 RESEARCH V , ' AND DEVELOPMENT X*0C 7/ 7/ WALTER C. M c C R O N E A S S O C I A T E S . INC iJSO ULTRAMICRO ANALYSIS o CRYSTALLOGRAPHY MICROSCOPY GENERAL OFFICE: 493 EAST 31st STREET LABORATORIES: 449-493 EAST 31st STREET CHICAGO, ILLINOIS 60616 PHONE: (312) 842-7100 CABLE: CHEMICRONE 29 September 1971 DCClhri.enstMoenbu,rrorCuagoyhnB-nPeeocrdtniidccusk,t 0I6n4c1.3 received OCT 5 1971 Dear Dr. Berdick: M. BERDICK nOoutridinevnetisftiiegdataionyn ochf rPyosnodtisl'etafilbcesrasm. ples, designated talc 1 and talc 2, has wtaeWchbolaaeeohstcouettaltxrhpo2aaepn7nmned,0diapnu0irlfeeal0fdtcdrraXeabtcdsoo.totiohhonnWanesvraahpeaematTntithpnEtseelgMuermssnthpgbooeirycrifpdisothsuhuauosenssplsopdeefgenienybfsxdiieobaoirnmfensgrcifwsnhoaeerwbrdyroeeasuirobnteeotni0tutlhc.aet0eok,15ue0eannlge.tmpetchraitneolrcd.oto,nginTirm.ahiepesicho.sr,pouarfsnsoicpdbpoeeyapnrlnessaioalnt lBaanordtghoetnrallIyclisaanfsehtbwoewtasailzcnefeixobfceetrhlsle.enfltTapkhleeastsyiiznqeutaaollfciityh2,e. sfelapkaersatiinontailncto1tahrien pslliagthetlleyts, looattesTehhifpclwnaeeacpcdgostcueheltstrfearrooeioysrbfmneusntiedchobseredptiestis.ioferlfoesicflhnerrHtmaaaavftovcpraeiewtebplolicoeafeomtrrhnv2fceseoe,oncdrrinh,tmapesttrhitaaoytnchohm,rhseptteoohaitrhnhtgeteroiaaearllltyaaescoicapr,otgceemhnyioirtstpisheuosleotoilfethtdlfih,flecc-a.wneshrsoreohrgotyfiiefcbnsciihoebtbopteuaniriisrlrndotseaedecd,mnleoaeetsbuirnsinsebufciaiottnlefitofinuadgosfslneifaobtadtshrhtcehawetrsiatysnucintthchhhcdhoreahiyt.dfnahssdarniooslaIoniuttcnitrarltigecgesteupe,ircpvrioosoeaosrutilfstnila,scdcnibeyle mIfeyoduirheacvtley.any questions about the information in this report, please contact Sincerely yours, GEMnRAcGl2o:3as7juw0res Research Physicist October 19, 197i; TGRTODrrheriuur,esemmseMcaabbbtrouurucorlrhllurlo,agLIfyhnCaA-dB-bPapuoeonpsrrnotlwarideetic'ioa*dctlrikciRPeuIesatnsrOcek.SaSr1c1h Dear Murrey addMtoniafgdatfeerrdNytahcotSeht.ireaop1nwn6tke.i1stm5hfbftohoererry2trore%aupcroe1lrs0et7toft1reforcamosowbfWeeOsraitcnlottgosebrtbheCyer,e1e1lMxeacscmetGrniorntnoatmtomioMAincsrroo,sfosCoccuo.iarpDteTe.saa,DnlcdIrsniescNcl.eoocl.tlr1on yWoeu athpaptreict iwatiell hnaovtinbge tmhaisdeinpfuobrmlicatiinonanayvawilaayb.le In our files and w assure Sincerely your, FFR-.aJz pc; C . U* Driscoll VF riceed ePrriecski dFe.n tR ceach