Document BY9QeDbYDX2e79bpoD3Y84mX

FILE NAME: Talc (TALC) DATE: 1976 DOC#: TALC153 DOCUMENT DESCRIPTION: Letters & M em os w ithin the Cosmetic Companies and CTFA ' 'The Cosmetic,Toiletry and Fragrance Association, Inc. J3 J 1MSTHEI7, N.WUWASHINGTON a t 2 0 0 0 9 - 2673 J a tm M. u c iim i March 15th, 1576 ` Mr Heine J. Eiermann Food end Drug Administration 2 0 0 C S t r e e t , S.tf. Washington, D.C. 20204 On March 11th, 197S, Mr. Eiermann -- -- the- C T F A T a l c S u b c o m m i t t e e m e t to d i s c u s s th e c u r r e n t sta tus of talc. It was recognized that a need'exists to bring to your attention a profile of the analyses for asbestos form m a t e r i a l s 'in t a l c u s e d i n t h e 0 * 5 . p r o d u c t i o n 6 o o i R W t i c s and toiletry product. Individual companies are more than willing to discuss the detailed data with you at your convenience. Cordially,- Nonaan F. Zstrtn, Ph.D. Vice President - Science NFEiij Attachments j.L ; iV . . . ______ ) The Cosmetic,Toiletry and Fragrance Association, Inc. U33 1M l STREET, N.M. WASHINGTON, OX. O - M I/M I-im * TRXX 88-2873 J ^ Neman A. E a t*. AtaX. T M AlliliW Hltiii MEM 0 R A H D U M TO; FROM* DATS: Norman F. Estrin, Ph.D. Anita s. Curry M arch 12th, 1975 H* Jenkins called regarding the letter you haw esk4 fop gn cent talc analyses. been doings . He wishes to inform you as to what they have 4 1. Mr. Clements contacted Dr. tanger w ho gave hi the code on the Coty Airspun that was tested. It turns out that this was a July, 1369 produc tion item. 2. In 1970 Coty changed to a completely different talc; since that time the s u p p l i e r (weso) has supplied letters to the effect that they do continuous monitoring of production, even though individual batches sold to Coty may not be individually tested. 3. Coty has had teats run. on intermittent batches at the Pfizer Laboratory in Easton, Pennsylvania. These were done by X-ray diffraction and TEM. The results were all negative. Also, In the last wee k they have tested 1974 a n d 1975 lots. These too were negative. I AfiCijJ ` Ex. 6587-1 CPC-WINKELTRSCPT00002018 J' Avon products, me. * ilFfciR . i n y m , rises Or. Norman Estrln C1T1F33A 15th Street, Washington* D,C. 2N0.W00. 5 D e a r Norms March 12, 7976 of a ll lo ts of ta k ue have used lo our products during the past three y n r g ^ ^ & S K S IS s ffa S B Sir Si F a s - " r " 1'2 "" -isa-sa: a * BssSTESa? " * * * *-1 resow, the Yours truly* JJTstnc CCS C. 5. Rowland ' 8. A. Sprott R. C. Reardon Central Mie Jwin <1. Travers Chesebrough-Ponds ine. R I M t M C M U*la R ITOMI e a TRUMBULL INDUSTRIAL PARK.TRUM BULL, CONNBCTlCUT O M M March 1 2 , 1976 Dr. Norman Estrin - Cosmetic, Toiletry & Fragrance Association 1133 - 15th Street, N.W. Washington, D.C. 20005 Dear Norman: abput reports that some tiles might contain 2 K P? J S * OCC2rri ni c ntaB,lnant* As y ou know, wa have cooperated 5*TM^??* C T F A * itil t h e F D A i n d e v e l o p i n g s u i t a b l e A?dL*?r a ? ^ ? a \ m e t h d l o g y t o r e s o l v e t he v e r y c o m p l e x and difficult task of identifying asbestiform fibers in talc We VS-ILfi30^ 0^ Si0 8 * 1 * w l t h M P o n s i b l e talc sup p l i e r s to identify high quality sources of talc. ? L t!ii;J!!E l n n l n S o f , } 9 7 3j ^ h ^ i irp0seJwas 5 PPl^cable. felt that practical methodology for Since then, we have utilized the i n the a t t a cfunent to m o n i t o r i n c o m i n g c o s metic f r o m thi!?rt y p e ! that we h a v b een U 8ln' These three are from three different geographical areas. i f f i ! " .1?*" 1 th? f esults f t h M analyses on tht incoming lots f f 4 ? U m 0<? i n r * 0 * n t p r o d u c t i o n o f o o s m e t l o a n d t o i l e t r y products In the United States. T he last 8t reports, covering a 7 three-year period are, vdthout exception, negitiv. for ehryiotile and negative for fibrous amphiboles. I f s i t a.?a n b e u s e f u l * w e w o u l d b e p l e a s e d t o d i s c u s s t h e s e d a t a w i t h scientists at the Food an d Drug Administration. \ Sincerely, end. Murray Berdick ' ^ Director of Regulatory Affairs * ` CPC-WINKELTRSCPT00002019 m 4* X O) ai oo Ex. 6587-3 CPC-WINKELTRSCPT00002020 Ouv v j .o S x 0.C3A; v i 0 " 3tj 20} reflections .and s h o w i n g n o lino 1a the H . G A 4< t t o r U e rerfQft Is n e c e s s a r y and sufficient evidence for the p r e s e n c e o f chrysotilc. - 7 ? ? f. 14 " *B ad d 5 U o a to* a o d ot too p r o p e r intensity relative fo.tbe 7 . 3 A a n d S . 6S A lines identifies chiorite rather than chrysotilc. .. ,, W l c " th" x ' n y =*illMC la equivocal, optical crystallography m a y bo M e d to c o n f i r m chrysotlle. Positive identltlcallon will then b e b a s e d o n the k n o w n m o r p h o l o g i c a l a n d optical properties of chrysollle. T h e n o r m a l i o r m of chrysollle * * P " allcl >" "<" 0 oi lots fibers, e a e b a bellow cylinder only about 2 2 0 A In diameter. 1 f T n a i i 4.V " 8 !"*, ! n m USii - 1 -!SS> * f r o 1 - S 3 9 - 1.5 5 9 a o d o f r o m . - w . i u 50 ` TM s g n 0t elon^ tlml It poslllve since y lies nearly parallel !o the lensut ol the needles. T h e birefringence Is about 0 . 0 1 s hen c e a 5 p m thick bundle wtll * f w * ' " o H t U o o el 7 5 u a (grey). T h e birefringence of a 2 p m thick bundle at eirysolllo libers w o u l d be b a r e l y detectable e v e n with a firs: o r d e r r e d plau>. " Disp e r s i o n staining is a aenslllve a n d speeffio m e t h o d tor long-fiber chrysollle. la Ihecarglllq high dispersion liquid nz 1 . 5 5 0 m o s t chrysotilc fiber t u o d t e s s h o w k colors io the b l u e - m a g c n t a r egion with the central slop for the Vibration direction parallel !o the lcogth a n d In the blue for vibration directions . c r o s s w i s e . Unfortunately, In a preparation at quarts particles about 1 0 3 wtll lie In a position s b n w i n g the s a m e t w o colors lor vibration directions 90* apart. T h e s e c a n usually b o Identified as quarts b y m o r p h o l o g y o r b y Ibo loot Uiat the s a m p l e contains m a n y o t h e r particles ol similar m o r p h o l o g y but s h o w i n g blue central stop colors lo all positions of stage rotation. All chrysotlle fiber bundles a r e constrained by shapo to lying fiat^ienco a l w a y s s h o w i n g both blue (erosswtso) a n d b l u e - m a g e n u (parallel lo the , length) for central stop colors. . . S p o r n e _ N e c e s s a r y a n d sufficient c a d e n e o for the presence at tremolilo is a n f p e w d e r diffraction pattern with lines nt 8.4 0 . 1 A , 3 .27 0 . 0 S A , 3 .0 3 * 0 .05A M J 0 3 A ) '3 A ' <NOtC: * `"C a n m a s n o s f " m d e c r e t o rosy interfere nt 8 . 4 A a n d calciti 4 veWfo , W,CO i " f ay * donQa i9 e**lvgcal optical crystallography may be us i ?r " nc0 < frcmol.ic, Pomiivu cvjdcncq will then be based on accepted Tods e W n f r f T oi tr 0tU0. The common form is monoolinio cermystaulsLIjiin^gJon^ tmhe n 031f, ace. ' "JThe"opTU*c a1x-iMal>ptUla`neWii`shO l^'hIc"nco*o"(abo-ut o1i.C100)-2I1s*afls,, shown on the 010 viev^ The view showing p (about 1.G1S) and / (about 1.G3-) 3hOW3 K ('" e llo n . Tho optic Mini angle lo about 80* with a nogatlvo sign and' weak . ,v > l' colors aro m o d e r a l o a n d approximately 100 n m (gray) tar a 10 p m thick r o d la all orossiviso ortcnlqttons, 200 run (yellow) for a 3 0 u m thick M j m t a l . Characteristic dispersion staining c olors a r o o b s e r v e d In Cargillc hfrh disptt 1 - with " * ? frOTkliloo-violet with tho annular slop and'yellow a 4 3 0 " f c r * `"0- t r o o h (anonlar slop) a n d golden i n g e s t f r ^ r a l Stop), a n d a b o u t 8 0 0 u m f u r a, y n l l o w - o r a n g o (annular atop) a n d biua (central top) r COLGATE-PALMOLIVE COMPAN? 909 Hiver Road Piscataway, N.J. 0B854 N o r m a n F. Estxin, Ph.D. Vice President The Cosmetic, Toiletry and Fragrance Association, Znc. 1133-15th Street, N.W. Washington, D.C. 20005 Dear Dr. Eatrint M a r c h 15, 1976 Attached please find a summary of Analytical Data on 42 Tale S a m p l e s ( r e p r e s e n t i n g 20 r a w m a t e r i a l * a n d 17 f i n i s h e d pro d u c t s ) covering the period 1971 to present and examined by various tech niques by the Colgate-Palmolive Research and Development Analytical Department and McCrone Associates. Asbestos minerals were not detected in any of these samples, with the exception of insignificant trace amounts found by micro scopic methods in three samples from 1971-1972, which is believed due to laboratory contamination. Other methodologies indicate the absence of any asbestos. The results of these analyses indicate t n rrn fhflt t h i n nrorincts p r o d u c e d h v fcha C o l g a t e - P a l m o l i v e C o m p a n y since 1972 are free of asbestos minerals when subjected to the mo^t_goghigticated^ methodology available. We have ascertained by inspection of the package and analyses of the product that the sample of Colgate-Palmolive's Cashmere B o u q u e t e x a m i n e d b v D r . L a n o e r o f M t . S i n a i H o s p i t a l w a s _________ manufactured prior to 19707 The Bauer and Black Talc reported by Dr. Langer has n o t b e e n manufa c t u r e d since the end of World W a r II. This c o m p a n y w a s a c q u i r e d b y C o l g a t e - P a l m o l i v e a p p r o x i m a t e l y three years ago. CHCimp Attachments Very truly yours, -tguaitJ'ri-f/- 'tsCfCti, Christopher Hi Costello, ?h.D. Administrator Regulatory Affairs Ex. 6587-4 CPC-WINKELTRSCPT00002021 M rch 12, 1976 To: Prom: U r. C. H. C o s t e l l o j, p. S i m k o , Jr. Subject: Analytical Data on Talc Samples 1972-Present S i nc e la t e 1972 w hrn the p o s s i b i l i t y o f h M to s in talc was Analytical has been engaged in re-analyzing h v S ^ h i a i 5 e * *a W B k * e I ^ a l * a j<l products for asbestos minerals by the most sophisticated methodology available at that tine Analyses were made on a spot-check basis. Techniques used In house are x-ray diffraction followed by optical and scanning I S D,icr? s c 0 P y . lf n e c e s s a r y . X - r a y is the b a s i c s c r e e n i n g S,sTMiinirsj;itKi#ii^ 4 seUttei *"*,1`etron lllL' occur. a t } ! bl B i c r o s c 5 P y 1 when positive responses Additional tests on random samples were made by irons- F o r t y - t w o s a m p l e s ( f r o m 20 r a w m a t e r i a l s a n d f r o m 17 f i n i s h e d products), covering the period 1971 to the present, have been exam i n e d by these various techniques. Asbestos minerals were not d e t e c t e d in any o f these w i t h the e x c eption of trace amounts in 3 samples from 1971-2. These levels aro considered generally below the normal background levels encountered when this microscopic m e t h o d o l o g y is employed. It is b e l ieved that these trace amounts are due to laboratory contamination, attached. A d e t a i l e d t a b u l a t i o n is JPS/ed Att. Ho. at Staples Eaaadnaa for Asbestos Minerali 1972-76 Method HW-5AZD Seay le dates (yrs.) X-rey plus aieroseepy (optical - SEK) Sanale dates {yrs,) MA S u p l a dates (yrs.) B sv Talc 5 Wl-7a ' Cashmere B n u m t 7 1972-76 12 1971-76 1972-76 6 1972 i 1978 *1 M a p l e I 9 7 1 r a v tale contained 10-100 ppm, chrysetile * 1 sample 19 71 raw tale contained l-lo ppsu ehrysotiie These levels re present possible background con tamination **1 sample 1972 Cashmere Bouquet tale contained < 5 ppm. dnyaotllte So s aputole detected in any of these. JTB/ed 3-12-76 Ex. 6587-5 CPC-WINKELTRSCPT00002022 RROOUCTB COMPANY N ew BRUNSW ICK. N. J. 0 *9 0 3 Marc 15, 1976 Dr. N o r m a n F. Sstrin Vice President - Science Cosmetic, Toiletries, and * .. . Fragrance Association 1133 15t Street, N.I. . * Washington, D.C. 20005 , 9e: Examination for Asheetos la Talc Dear Dr. Estrin: The talc which is used by Johnson & Johnson is solely derived from i t s o w n m i n e in V e r m o n t , w h e r e t he o r e is rained s e l e c t i v e l y and then beneliciated by the process oi flotatiop. Shipm e n t s oi this highly purilied talc are routinely examined by o u r o w n laboratory to verify the absence of asbestos minerals. Historically, Johnson & Johnson has always been concerned about the raineralogical integrity oi its talcs and even its earliest s p e d - . iieations have required the examination for acicular particulates. * W h e n it w a s erroneously reported In 1971 that o ur p o wder contained asbestos, w e sponsored a scientific seminar of raineralogical and a n a l yt i c a l experts for the F D A to prove that o u r talc is not c on taminated with asbestos. At that time numerous samples were analyzed by experienced consultants such as McCrone Associates, C o l o r a d o S c h o o l of Hines, Pr o f e s s o r F, D. P o o l e y (of the Univer s i t y C o l l e g e , C a r d i f f ) , P r o f e s s o r G. 8r o w n ( o f P r i n c e t o n ) , a n d P r o f e s s o r M. B u e rger (of U,I.T.), These examinations included X-ray diffrac- tion analysis, differential thermal analysis, and transmission electron microscopy. Duri n g t he period December 1972 to October 1973, 93 lots were indi v i d u a l l y sampled and examined by X-ray diffractometry for the presence , of asbestos minerals. No amphiboles or serpentina minerals were detected in any sample. Dr. N. F. C.T.F.A. M a r c h 15, 1976 Beginning io October 1973, differential thermal analysis was added to our specified requirement. Both, differential thermal analysis and X-ray diffractometry were instituted for the routine examination of sequential lots. A further 1 00 lots have since been examined, * applying both methods to each sample. Again, no amphibole or ser pentine minerals have been detected. I would like to advise that we are continuing to employ differential t h e r m a l a n a l y s i s a n d X - r a y d i f f r a c t o m e t r y in the e x a m i n a t i o n of sequential lots for the detection of amphibole and serpentine min erals. It should be'pointed of talcs used by our sane techniques. out that we also maintain a worldwide monitoring Johnson A Johnson affiliates, employing these Finally, let me add that periodically, we also submit sub-samples for Transmission Electron Microscope examination and these have always verified the absence of asbestifonn minerals. It is our understanding that you would wish to submit this information to the FDA. Please regard this letter as nan-confidential. Sincerely yours, GL/n G e o r g e LeeDirector of Applied Hesearch j Ex. 6587-6 CPC-WINKELTRSCPT00002023 j' Ex. 6587-7 CPC-WINKELTRSCPT00002024 M V m 3 DUCTS COMPANY NCW BRUNSWICK. N J 08903 M a r c h 14, 1978 EXAMINATION OF AMERICAN & BRITISH TALCUM POWDER ____________P R O D U C T S B Y D R . F. D, P O O L E Y _____________ A t o t a l o f .38 s a m p l e s o r i g i n a t i n g f r o m t h e l a b o r a t o r y o f t h e Department of Environmental Health, Ut. Sinai Hospital were ex a m i n e d b y Dr. F. D. P o o l e y in an e f f o r t to s u b s t a n t i a t e results reported by staff of the Mt. Sinai Hospital. . American Talcum Products A total of 20 samples (corresponding to 19 American products) were subjected to examination by X-ray and electron microscope. Dr. P o o l e y verified that five products contained several percent, by weight, of fibrous anthopbyllite asbestos. T h i s i s i n c o n t r a s t t o t h e lit. S i n a i c o n t a i n e d 8 t o 20% a s b e s t o s a n d t h a t contained less than 5% asbestos. report that five of another five of the the products products British Talcum Products Similarly, 13 products w e r e examined by Dr. Pooley. Re verified one p r o d u c t as con t a i n i n g anthopbyllite. O n the o t h e r hand, the Mt. S i nai l a b o rato r y r e p o r t e d f i n d i n g t r e m olite in three products and anthopbyllite in a fourth product. They further reported that tre~ ooli t e or anthopbyllite were "indicated at or near the lower limit o f d e t e c t a b i l i t y " in f i v e o t h e r s a m p l e s . It w a s also- r e p o r t e d that "serpentine phase was found in two, and possibly in several other samples," but "electron microscopic examination would be required t o r e s o l v e t b e p o s s i b l i t y o f t h e e x i s t e n c e o f c h r y s o t i l e " . H o w e v e r i, D r . P o o l e y 's s u b s e q u e n t e x a m i n a t i o n w i t h t h e t r a n s m i s s i o n e l e c t r o n microscope has refuted the existence of any chrysotile. It should be emphasized that these American products were sampled in 1973 and are not necessarily representative of current American talcum production. , . waiter c mecrone associates inc. CONSULTWO, UL?AAUKfROANM.ma MCSOSCOPY SUUA PAKTKU MOSLEMS SOUO-STATCCHCMantr IS M u c h 1978 Dp . N o r m a n Estrin Coemetics Toiletries and Fragrances Association 1133 15 th Street, N . W . Washington, D.C. 20005 D e a r 'Ur . Katrin: This letter will amplify our recent conversation on tale analyses for asbestos'. Since 1971, Walter C. M c C r o n p Associates, Inc., has worked with several producers and users of talc, the majority of t hem involved with cosmetic grades of talc. During this period w e have analyzed several hundred talc samples for the presence of asbesttform minerals. The methodologies used have been principally X - r a y diffraction and light micro*copy using dispersion staining, although extensive transmission electron microscopy examinations have been carried out for s o m e companies. Subject to the approval of oar clients, w e are prepared to m a k e available to the F D A .through CTFA.tbe results of these analyses. W e also have available retained samples for m o s t of the analyses. Verbal agreement to release this data has been already given by clients accounting for probably 80-80% of the samples; the others have not yet b e approached. It would, however, be Improper for us to c o m m e n t on specific samples until such time as written approval is received fro m oar clients, together with identification of those materials used in cosmetic production. T b e latter point is stressed because several of our analyses represent the results of raw material assessments which s o m e companies Initiated and might include talc ora bodies which are unacceptable for cosmetic applica tions. I do not think, however, that X would be violating any c ompany eooflcUmccs if I w e r o to c o m m e n t on the asbestos in talc situation as w o s o w It over the last S years. I think our view can be s u m m a r i z e d briefly as follows. * m * SOUTHUKMQAN AVNUCHICAGO. U M X S H N . H 2 /M -7 IH <CMU CHOSCflOMC Ex. 6587-8 CPC-WINKELTRSCPT00002025 U M a r c h 1978 D f N o r m a n Estri Cosmetics Toltatries and Fragrance* AsaocJaoo Pig T wo ' S o o w c o s m e d c talcs prior to about m i < M 9 7 2 to early 197-t ,____ ^ T " P `^ ? W '`",ao" <* however, Indicated that th. balk o i W . araphitole content (>90<}, w a a ncn-flbraa, ,ppl,d.J,i a ^ c t r a d o crltarloa lor , Ubcr, and hence aot a c h a t e e " So ohryaotUa aabcstoa waa found in these taloa Y o u r a sincerely, Ian H. Stewart M a n a g e r , Electron Optica Gro u p 23T ""ta0t"d"* -- Avon Products, Inc. Bristol-Mysra Product* Cbaebrougft-Pond*, ine. C o lg a te -P a la w liv * , X a o . Pebewe, ine. Johnson C Johnson Windsor Minerals, ino. Whittaker, Clark' a Denial*, ino. i -PPoovU to ralaaaa info,,atie. 4 Iah ST23U IDjTG lC. 90 PARK AVewU. NEW YORK. N Y IOO6 tXCCUTfVC OPPICtS M a r c h 12, 1976 fiWWMta tri Qw.fity -- -- -- M ieucg Washington, 0.C. 20005 Dear Norman: ;'a00CiatiTM - Ia=- , k 3 t r i l11'3 In<:- i n i t i a t e d t e s t i n g I n H o v e n b e r 1 9 7 1 v ! , i a c u " e d i n 2 3 1 SatJy P o w d e r - f o r t h e p r e s e n c e o f b y b x - r a v d i f f r a c e i l a ' 3 ?'"C ? t h a t t l 'w w s h a v e h a d t e s t e d diffraction analysis ehout one-third of the lots received. In all instance, the reaults indicated there was n o detectable asbestiforra minerals present in these jamplesi We also have had assurance fr2 o s u p p S e J Cla?* & D a m e l a , Inc., that they routinely** 5 ? " i 2 L S ? n TM 1 S ,r t ` , f * 2 * ? ^ P P l i - d " < t h e p r e s e n c e or asbestifora minerals and have found no detectable amounts . " " "tiling to meet with PDA at sane future date to present the detailed reault. of this teating. ,, . 1 told you the code on the package of -ZBT Baby Powder tested by the Mount Sinai Hospital group wae cided airf w a s p r o d u c e d i n J u n e 1 9 7 0 . W . a r e o f t h e o p i n i o n that the testing we and our suppliers have performed assures us that the "ZBT Baby Powder" produced since late 1971 does not contain asbestifora minerals. Sincerely, RAM:m* t t.s *' Roderick A. Mundy Ex. 6587-9 CPC-WINKELTRSCPT00002026 acs-sLemAO" IITUMNI ItOII H I 4 1 0 O MIS 'tooocoeuDacsnierr s o u t h r u m m m c l b n j o t o m M a r c h Vi, 1070 D r, N orm an E strin C T F A Headquarters ' 1 1 3 3 Fifteenth Street, N . W . Washington, O.C. 20005 * D e a r Dr, Estrin: . . n7i * In A u g u s t / a test p r o g r a m w a s instituted b y o u r c o m p a n y to Insure c u s t o m e r s using o u r c o s m e t i c gra d e talcs that they a r e Tree of fibr o u s a s b e s t o s , It w a s d e t e r m i n e d that the u s e of X - r a y diffraction w o u l d b e the m o s t practical m e t h o d o f detecting the possible p r e s e n c e o f a s b e s t o s a n d thus a s s u r e u s of a reliable a n d w o r k a b l e m e a n s of p eriodic m o n i t o r i n g o u r talcs. In the event that the results of this 'testing s h o w e d possible positive results, thp s a m p l e w a s further subjected to optical m i c r o s c o p y . In all c a s e s the testing of o u r p roducts w a s p e r f o r m e d b y outside independent laboratories. W e h a v e also u s e d oth e r test m e t h o d s s u c h as Differential T h e r m a l A n a l y s i s surd Optical M i c r o s c o p y , h o w e v e r X - r a y diffraction g a v e us the best reproducable results. O u r file contains reports o n v a r i o u s g r a d e s of c o s m e t i c talc f r o m a r e a s in A l a b a m a , N o r t h Carolina, M o n t a n a , Italy, S o u t h K o r e a a n d V e r m o n t . T h e s e reports w e r e based on approximately 74 ground ore samples a n a l y z e d o v e r a p eriod of four y e a r s alL of w h i c h s h o w norv-detectable a m o u n t s of fibrous a s b e s t o s f o r m m i n e r a l s . Additionally, s e p a r a t e tests m a d e d u r i n g this p e riod b y m a n y of o u r c u s t o m e r s s u p p e r t e o a n d substantiated o u r test results. A U o f t h e testing for the p r e s e n c e of a s bestos f o r m m i n e r a l s In talc h a s b e e n p e r f o r m e d b y "outside ex p e r t s " including the following: ' W a l t e r C . M c C r o n e A s s o c i a t e s , Chi c a g o , Illinois Ernest Fullom Associates, Sehenoctadyi. ,Ncw V o t k E .S. Laboratories, Marlton. N e w Jersey Prof. Charles R. Manning, North Carolina University Prof. S e y m o u r Z. Lewtn, N e w Y o r k University O r . G o r d o n B r o w n , Princeton University continued IMPORTERS MANUTACIIIHfMS tM'ORIl..* MINERALS, C O L O R S . R I O M E N T S <1 D e Bell & Richardson, Enfield, Connecticut C o l o m b i a Scientific Industries, Austin, T e x W e e r e willing to e u b m i t Blto infonmetlon to the c o m m i t t e e In detail to hslp substantiate their claims e FFR/drn WHITTA K E R , C L A R K & DANIELS,INC. F rederick F . ftoesch Executive Vice President