Document MGwwe0qR7rZq6RqXNgyxMYVbM

FILE NAME: RT Vanderbilt (RTV) DATE: 1975 Apr 18 DOC#: RTV023 DOCUMENT DESCRIPTION: J-M Letter to RTV RE Meeting about Talc Labeling .i / e i Johns-Manville Products Corporation filtratio n & M ineral Division Greenwood Plaza Denver. C olorado 80? 17 . . (303)770-1000 April 18, 1975 ' 3/5 Mr. H. B. Vanderbilt, President R. T. Vanderbilt Company, Inc. 30 Winfield Street Norwaik, CT 06855 - Dear Mr. Vanderbiit: Your,, courtesy -in meeting with us earlier this week is \ iated. We .felt that it was important. \ for you to' understand our>iposition with" reepaet.to \talc labeling and.the various 'actions we are currently taking in the market place in this regard. . Our intent m sharing with; you ..our analytical, data on your products is an attempt .;to >b'e;;"Kelpiul and is most certainly friendly. . xn this regard, if ..we.-tcan`in any way be of assistance to your technical people through an exchange of information and^samples we would be glad to do so. If Dr. Thompson would;bare to.meet with our Research people to review -our ^findings we would be pleased to arrange this.fpr him. Thisikindof techni cal exchange would be helpful t o b o t h companies. Following our meeting ;in?No.rwalk, I have reviewed with Dr. Paul Kotin, Medical Directot.for Johns-Manville Corp., the various points we discussed. He/'has iridicated that if you so desire he would gladly meet with you and various members of your staff to describe the medical aspects of the situation. Will you please convey my thanks to the other members of your group who attended our meeting on April 16. Sincerely, R. S. Lamar, Manager Filtration and Minerals Division Growth Development dla C C : Dr. Paul Kotin D r . Fred Punds ack Ti bcc: S. W. Schulmeyer H. R. K eefe RSL chrono file P. T. Vanderbilt file . C. J. Sulewski P. A. Martinson R. p. Carter w. C;. CRMC-BEV-000375 H. Li. i.nmur- - B&b V. L . Wo] k o flo lT - K&U October 2 3 , 197**. 'Distribution on hoverse Side TEM AvID SELECTED AREA DIFFRACTION PATTENS -OF ASBESTOS MINERALS IN FGU VANDERBILT COMPANY J. Al, your roquest, I war. ubie`to contract time on the Philips 200 .o ocl.ro.'i mieror.nope at Denver Research Institute-to confirm by selected area diffraction patterns, the presence of chrysotile, aei.liuphyllite and tremolite in all the R. Vanderbilt taler. i , ;uale<i iiy .a] 2 0 0 , ily Lai i|0 0 , A s b e s t in e 3X, and A s b e s t in e 32c/ / ( .sise r e f e r to n.y .l e t t e r o f October 9 , l97't which is. based in,ui cul-ly on FDA optical methods and the use of our RCA electron . uiercscDpes to confirm chrysotile). It wac felt that selected area diffraction patterns of the asbestos minerals using the l`i.Ilip;. WOO would .lend positive identification - a.type of analysts which cannot be done on our RCA EMU-3B model. 2. Table No. 1 not only identifies samples, but also identifies . all TEM prints and'selected area diffraction patterns of the . 3.1 prints attached to this .letter. The TEM plates are always on file.- The microscope constant (L A) was derived by averagir,,; 21 microscopic constant.values based on lines of Au and Pa. The microscope constant is:', ' . . LA = lt.l(51 A cm 1 0 .0 0 3 To calculate d-spacing in Angstrom units, the following formula vas user:: . . 3. Garysotile, unthophyll ite, and tr.emolite were all found in eacho . the four P.. T. Vanderbilt talc, samples. Particular data for. each `uiuffjvle are. found- in Table No. 1 and appropriate attached electron diffraction patterns. - V. E. Wolkodoff Attachments S9WW55! D istribution: " Hi 1`. C a r te r * . ' - i(N F. L. Pundsack E . M. Fennor ' llM J . P, Leineweber P a u i K o tin , M.D. ' - ItN . W. C. S t r e i b W. B. K eitze - tN S. Speil* ,F. J . C o lo n , J r . - >tN R. S. Lamar* iK' 1,. Kwallow - ItN V. E. W olkodoff* A. C. F. F in k b in e r , I I I - SW J . A. McKinney . - 5W :? 11.. {;. K eefe* . . - 2W . i'. A. M a rtin s o n - 2W. C. .1. Culcw oki . - 2W W.. L. VonDerbeek - 2S H* (J. Hiode 1 . - 2S 1 . ^Prints attached only to those names followed by asterisk, 4wi CRMC-BEV-000275 . . . * '- yM-,-I-**V 'i>-;:,'>r^m - :m TABLE 1 Tivl 'IV o u lu tio n o f M icro g rap h s and S e le c te d A rea D i f f r a c t i o n P a tte r n s . o f F o u r T a lc Sam ples From Ft. T. V a n d e r b ilt Co. :.o. -1 .* * Y'P'w - i . y, . Y',:",v- 1 it .Ft:-. 7 I.2 W -1 '/a n c ie n , i 11 .V:;iri..iT.j on Xyta'L 2U0 h y la l 200 ify m l 20O Nytul 200 . Tr'M P l a te . K o.. M agnification 2301A, 11,000X 2'il'U, l6 ,0 0 0 X . 2305-a , aa.ooox - t J . . i f 7;.2W -L by Lai 200 U h*: Y'.2VV-i. ily Lai 200 7 <0 71..-VV-I liy ta l 2 -0 V) AyL a! 200 2306A, 2 2 ,000X 230YA, 22,000X w Y`.2 W -2 Nytu'l it00 ' ;o hv 7;.;'>V-2 ' liy ta l It00 1 ; n.C 7i;2'j`. - 2 Ily ta l 100 . f:;; 7 ':'VV-:2 liy ta l It00 1 '1 . a t V^'jTj-2 liy ta l 1*00 1J* kC 7J255-2 ily ta l HOO IV it: 7 ^ 5 5 - 2 l iy t a l dOO . V A-.O - fc Y'.2vV-2 liy ta l IlOO 2302D, 11,000X 2318C, 16 .,00OX. 2308A, 22,000X 2309A, 2 2 ,000.X 2310A j: 22 iQOOX .7 71.2 W - 3 A sb e stin e 3X. If. A s b e s tin e ,3X IV r.;: Yd2vV-3 A s b e s tin e 3X' n Yl.2V.V-3 A s b e s tin e 3X <'*1 c e 7 'i2 W -3 A sb e n tin e 3X c . - f 7-'*255-3 A sb e stin e 3 X rtt V1 -t: Yi.255-3 A s b e s tin e 3X i'h -' tvk' 7**255-3 A sb e stin e 3X- 2303'D, 1 1 ,0 0 OX 239D:, 16,000X S eio eted Area D iffraction P a t t e r n , 3VX Remarks 2305B, C hrysotiie fib e r P a t t e r n i e o f wi don't f i b e r iii 23G5A, C hrysbtile' Anthophyi l i t e fib e r Anthophy] l i f in 23O0 A Trem olite fj.a-r T rem o lite f in e r if. 2307A 23083 2309B - ' 23103 - 23113 ' . ,-r ' 23123 23133 C hrysotilu f .:S | Pabaotvteer n o f 2, * ^pj A n thophyll i * ' *w< '* --'W P u t t e r - o f A,n i.Oi'l i'J 1J 1 'U above . m i] T re m o lite f il .1 * 'yfaSsSi P a tt e r n o f V. . I'>%' .. above 'if^sISaN . C b r y s o tile f it- (*i ;\ bottom \ P a t t e r n - 0 f t-ll;*y.<C*t ) t above Authophylll i l <-,2 ^ P a tte r n o f A; .... ;i j t e . ^ l above T re m o lite f 1.. P a t t e r n o f V.-<. ...oi i t u above 2S ik: 7l;255->i A s b e s tin e 325 4*0 . kb 7 f 2 5 5 - i* A s b e s tin e 325 F ib e r, i s c o m i..,'A Ciifysc t i l e and Atr.pklU-.In "1 ` CRMC-BEV-000276 'fable 1 continued . Vicideroi]. l TEM P l a te Lo .iu. i ^ n a t io n N o ., M a g n if ic a tio n Y|i255-A A s b e s tin e 325 - ' ` <*o iu; YAP!/,-1'' A s b e s tin e . 325 231H A ,.22,000X py . **kS Y`'255-A A s b e s tin e 325 - . ' 30 ' \u: 71^ 5 5 - )i. A s b e s tin e 325 2315A, 22.000X l i` r A sb e stin e 323 .V 7 ;.o 3 - J i A s b e s tin e 325 2316A, 22,00GX 3.3 YA235-A. A s b e s tin e 325 ' - . ' . ijo.loetod Area D iffraction P a tte rn , 35X Hoi.iarkr. . 2322b 231<iB 2315B 231oB . C hryr.otile pat;. superim posed on Amphibole p.v..e.-.n ' C h.rysotilc fi ber . P attern of G arysotile above Loncest fib er is ' ^A ntT i^ptiyllite P a t t e r n o f A;.. ;,.v l .y l 'i to above L a r g e s t f i b e r L. Trem olite ; . P a t t e r n o f 1 1t e above