Document g2nJQdjMzGGppYRBReVBdnz3G

AAAJJJFYR Chesebrough fo n d s Inc. research la b a rato r ie s T R U M B U L L IN D U S T R IA L P A R K , T R U M B U L L , C O N N E C T IC U T OSB11 PHONE; 203 377-7100 October 11, 1972 . Mr* C. . 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 G. 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) 'M.c #2 Is Whittaker, Clark & Daniels Talc 16X5 (CP Lot #2416-33, WC&D Lot #412615) Before sending these to McCrone Associates, we had alreadyexamined 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. MB/bm att. Sincerely yours, V<T>- Murray Berdick Director of Applied Research xnoc 7/?/ RESEARCH ' AND DEVELOPMENT WALTER C. McCROHE ASSOCIATES, INC. SMALL PARTICLE PROBLEMS SOLID STATE CHEMISTRY ULTRAMICRO ANALYSIS CRYSTALLOGRAPHY MICROSCOPY GENERAL OFFICE; 493 EAST 31 si STREET LABORATORIES; 449-493 EAST 31 *t STREET CHICAGO, ILLINOIS 60616 PHONE; (312) 842-7100 CABLE; CHEMICRONE 29 September 1971 DCChlri.enstMeobnur,orrCuagoyhnB-nPeeocrdtniidccusk,t 0l6ie41.3 . received QQJ g inyi Dear Dr. Berdick: nOoutridinevnetisftiiegdataionyn ochf rPyosnodtislretafilbcesrasm. ples, designated talc 1 and talc 2, has wtaeWchbolaaeeohstcouettaltxrhp2oaaepn7nmned,0dipanu0irlfeael0ftdcdrraXeabtcdsoo.totiohhonnWanesvrahapeaematTntithpEntseelgMuermssnthpgbooeircyrifpdisothsuhuauosensslpsopdeefgenienybfsxdieiobaoirnfmensgrcifwsnhoaerewbrydroeeasuirobnteeotni0tutlhc.aet0eok,15ue0eannglet.mpetchraitneolred,oto,nignTLrmahiepesicoh.sr,pouarfsnsoicpdbpoeeyapnrlnessaioalnt laBanordtghoetnraltlyhcasanfsehthwoewtasalicznefeixobcfeetrhlsle.enfltTapkhleeastsyiiznqeutaaollfcittyh2,e. sfelapkaersatiinontailncto1tahrien pslliagthetlleyts, tlotaoeTsehhipflcwnaeeacpcgdsotcueheltsftrearrooeioysrbfmneunstiedchobseredpitetssi.ioferlfoesicflhnrerHtmaaaavftocvpraeiewtbeplolicoeafeotmrrhnvf2ceseoe,oncdrrinh,tmapesttrhitaaotnychohm,rhseptteoohaitrhnhtgeteroiaeaarlllytaaescoicapr,otgceemhnyioirtstpnsieuoseoltoilfehttdlfihflee,cwa,~neshrosreohrgotyfiiefcbnsciiheobtbopteuaniriisrdolnrtseaeedcd,mnleaoeetsbuirnsinsefubciiaottnelfitofnidaugosfslfnieaobtadtshrhtcehawetrsiatynsucintthchhhcdhoreahiyt.dfnahssdarniooslaIoniuttcnitrarlitgecegsteupe,ircpvrioooosesarutifsltnilas,-cdcnibeyle m3feyoduirheacvtelya.'ny questions about the information, in this report, please contact Sincerely yours, EGMnRAcGl2o:3as7juw0res RGeenseeaRrc. hGPrheiygseicr ist <*# 3 rnpm s|U m Mm #|<*|srft w tm&t m 0MM3 I#U3M|iMM(Wh mA