Document O1aYQ60rrzRXxwgV6EjrR6ZrK

FILE NAME: RT Vanderbilt (RTV) DATE: 1974 Oct 9 DOC#: RTV250 DOCUMENT DESCRIPTION: Inspection Report from J-M Archive - Analysis of 6 Samples of Various Vanderbilt Talc Products .JOHNS-4ANVILLE - TALC-CHRYSOTILE CONTROVERSY Summary M Six (6) samples of various Vanderbilt talc products were analyzed for Chrysotile content by JfcCrone Associates and by E. M. Ventions, Inc- No chrysotile was detected by either laboratory. The six (6) samples were supplied by the Johns-Manville Company as portions of the samples they had found to contain up to 3 5 $ chrysotile fiber, as reported to Vanderbilt personnel and to officials of the Occupational Safety and Health Administration in Washington. Analytical Data In March o f 1975 representatives of Johns-Manville Corporation, Denver, Colorado (R. S. called requesting a meeting between themselves and R. T. Vanderbilt personnel regarding labeling of tremolitic talc. The meeting was eventually arranged for April l, 1975 at Corporate Headquarters in Norwalk, Connecticut. Lamar) the RTV Die meeting was attended by R. S. Lamar, R. P. Carter (representing J. M. ), H. B. Vanderbilt, T. T. Noland, A. M. Harvey, C. S. Thompson, and P. B. Gibney, Jr. T^mar and Carter explained that they had called this meeting to present their story that our talcs (NYTALS, etc.) contained chrysotile and other forms of asbestos. They offered technical data, copies of which were left with us, and offered to send us samples of the title they stud ied. During the discussion Lamar stated that one of the Vanderbilt products contained 35$ chrysotile. The data they presented included "fiber" counts performed on four (L) so-called Vanderbilt products indicating that chrysotile constituted up to one-third of the "fibers" counted, (see attached Johns-Manville document) libers were defined by the inadequate and obsolete criteria of 3:1 aspect ratio. Their reasons for the visit were given as purely informative, as friends, in case we were un aware of the mineral content of our talc. They admitted they had gone to OSHA offices in Washington with the same story, complaining that they were losing business to Vanderbilt talcs which they considered to contain more asbestos than theirs. They have labelled their Western talcs with the OSHA Asbestos Label, and they had hoped to convirce us to do likewise. Mention was made of the law suits now existing against Johns-Manville resulting from non-labelled asbestos 20 years ago. We ended the meeting with their promise to send us portions of the retained samples of Vanderbilt talcs they had analyzed and reported on. Ihe above statement concerning chrysotile came as a complete surprise to us since our past studies of the mineral content of all our talc ores and products had revealed no chrysotile. The minerals present in the talc products discussed had been determined to be as follows: major non-ashes t i f o m tremolite and anthophyllite moderate serpentine (antigorite-lizardite) moderate talc trace quartz Other grades of talc produced by Vanderbilt in a separate mine and mill facility in the Gouverneur, New York area contain the following minerals: major fibrous talc minor serpentine (antigorite-lizardite) minor asbestiform anthophyllite trace quartz I ULs. ..O 0*#f'k,,,v R, S. Lamar (2) i ' 9 p"*/ - 7',-*-^' < fi i- u W a U * October 9, 1974 samples studied are as follows SAMPLES TREMOLITE CHRYSOTILE ANTHOPHYLLITE ivd-.r ijv t.^c.-. i-.Nytal 200 604,000/mg 300,000/mg ( 151,000/mg | i Kytair'400.-d. :n ::-1'5IV931y0'00/mgtr ;ACEE/6', 000/mg '- 129,000/ng j 1 Asbestine '3X:..." Asbestine 325 876,000/mg 992,000/mg 561,000/mg 503,000/mg 23,00 C/m.g j ! 31,000/mg j : - -- - ---,. ~ T. . V .1- - The-predominant fiber in..each'.'sample-is Tremolite which/ can be-.-somewhat ,,.blocky; ".with, clipped ends,-is very harsh, but most. are.narrow and rigid fibers. The Chrysotile ranges from silky (very small percentage), bundles of i. few fibrils ,nandrbuncles>containing .numerous-- fibrils!' air. general the Chrysotile is considered medium-harsh to harsh. The Anthophyllite is characterized by having very narrow diameters', being extremely rigid, being-almost spear-like since'individual fibers can show one end as acicular (needle-iike) and others show a double termir.otioh- of acicularity. - i - , .* -- 6. By-transmission:eiectrommicroscopy (TEM) ,-six plates- r were-taken of each sample.'. One print of each sample to show: atsleast .acfew: Chrysotile::fibers, are -attached and ' the magnification .is 11 ,Q0QX.: -At' this magnification 1.1 cm. equals one micron. The TEM ,,plates on file are as: follows: t . .... a ; '-Nytal 200 ' b. Nytal 400 , . c. Asbestine 3X d. Asbestine 325 _ ; TEM Plate N o s . 2301 A-F TEM Plate K o s . 2302 A-F TEM Plate N o s . 2303 A-F TEM Plate N o s . 2304 A-F All plates were taken at 4400X, and after enlargement for prints, the magnification, would be 11,000X. ..: .. . ( All TEM plates were taken on our R C A .EMU-3B electron microscope. We had planned to use a better model, Philips 200, at The Denver Research Institute for greater R R. "S. Lair (2 , (3) "October'9,' 1974 clarity, better resolution, obtain plates at higher magr.i...... fication and domselected area electron_diffraction to,,. r -- prove the identity'of "the asbestos" minera'ls (which cannt be~do"ne"OTf~our~RCA"node 1)y~'but'~the'i nstrurr.ent' at DRI ~Vvas not available for ..our .use, at the time; and in all probability .il.'."le.ven_if _a_yailable, 'lthe' work could not have been finished'j__ October 11,.1974, .since the optical work took* a grear' iv "deal of time. T. *If better TEM micrographs are needed with selected area 7" .,*'electron dif fraction "patterns"for" your .FDA presentation-,-- -- and"if you somehow can get ^additional time before - presentation, I v/ill make arrangements for our use"of~the ..Philips 200 electron microscope at DRI. ' . / f , l-htk.-ir/ l, . v. vVwbkodoff Applied"Research. Section' v:"f ^ ;V-\ . jc Distribution : R. P: Carter" - 4N ;E. M. Fenn:er.... . ..**.4N *'Paul K6tin",,M`.D1 7 ;'' 4N W. B..LReitze_ ,17 L'~1 4N F. j;"SoIon, :Jr. /' 4N G. LV'Swallow - 4N A. C. F'. Finkbiner, III - 5W J. A. McKinney. - 5W H. R.'Keefe -- 2W P. A. Martinson - 2W C. J. Sulewski' -- 2W Y?. L. VanDerbeek - 2S R. G. Riede if 2S F. L. Pundsack J. P. Leineweber .7'. W. C. Streib . A.`J. McArthur T ' "...s. Speil ' ' " *..... - .... '* - '*'*' -- * ; ! NOTEBOOK 4454 pp. 70-77