Document ym1k8jKGZNjMy2VrNG48XOV9X

,ibit r Official Reporter ' KATHY RYLANDSHOLM Author: D,. WolOChCW. national research laboratories PROGRESS REPORT Division of Chemistry, Investigation i*" Asbestos. . .. page \ REPORT NO. 0156-36. Period Covered July, 1936.______ DATE----- Typed: Sej5j>*10,1936 Topics: 1, Annual Meeting of the American Society fox Testing Materials, 2, Fibre Tests on S, Fractions, ` 3, Q.A.P.A, Meeting. . ,4. Active Silica, .. 5. Free Fibre in Tailings. . , b. Yi9it to Vermont Production Company. 1."" Arynnai Meeting of the American Society for Testing Materials. This meeting was held on June 29th to July Jxd, 1936, at Atlantic City. The report covering the various items has been prepared inseveral appendices, attached to this report, as follows: Appendix A, Opening Session and Marburg Lecture. .. .B. Symposium on Radiography and Z-xay Diffraction. Methods. 0 Committee A-5, on Corrosion of Iron.and Steel. . D. " C-l, on. Cement. .. E. ? D-l, Preservative Coatings for Structural Materials. F. * D-9, Electrical Insulating Materials, G. 11 D-ll, Rubber Products. . . H. n D-19, Water. for. Industrial. Uses and. Joint Research Committee on Boiler Feed Water,. ' I. Interviews. ' ' J. List of Prepints available for circulation. . The activities of Committee D-13 axe reviewed in a. separate report, - No. CI33-36S, a copy of which is attached. Copies -of this special report have oeen d istributed among .the. Producers. 2. -Fibre Teats on Q.S. Fractions. The testa on the four samples of spinning fibres mentioned in the previous repoxt have been completed, and the results have been presented to the Producers in Report No. CII5-36S, d ated .July 24, 1936, a copy of which is attached. PLAINTIFFS * EXHIBIT GA3S3 COPY FOR THE PRESIDENT  ' > 5 .* .. ' : . . " . / ^ .RePORTNO;CX56-36 3. ; QlA.P.A. Meeting. . . . * The 29th regular meeting of the Q.A-.P.A. was attended . on July 27, 1936, at Sherbrooke, P,Q. ; . (a) Heport Ho. CII5-36S was presented and discussed, and the Producers ashed that this work be continued on the shorter ' grades. ... . : " (h) The Fibre Inspector's report stated that some over- - . ^grade fibre was still going out, though there was a marked improve- ' - ment in this respect. A set of rules for sampling and testing was requested. Mr. Shoemaker stressed the importance of this ' as he felt that thousandsof dollars were involved. . 1 ..." It was reported that a comparison made with the all-metal =* machine and the Bureau of Mines machine showed good correlation. \ . 1 : ' Some difficulty had been encountered in the testing of j certain grades of Air Floats, the material staying on the 10 mesh until tapped sharply, after which most of it went through. . ' :: * -' i It was decided that the Official Inspector supply each ' company with test adjustment figures for their testing machines, the notice to be posted in the testing room after having been countersigned by the proper officials. . . . ' - . The testing of special Air Floats and the general problem - ija . of technique fox sampling and testing was assigned to the Technical *2 . Committee* ' ' (c)' Mr. Johnson expressed himself very strongly against giving the Inspector the authority to reject shipments which tested ~ somewhat above the maximum. He stated that his Company was losing - confidence in the testing method as apparently no machine could test fibre correctly because of the many and varying characteristics J of asbestoe. In addition, new fibres were being constantly int3> duced, such as processed exudes fox example; the question of open ; and crudy fibres -had not yet been settled and so-called dustless - fibres were making their appearance. He felt that dust , presented a serious problem which .was one-that might soon be forced upon the Producers by the. Consumers;He'disapproved of the business methods of some parties and called "for co-operation of a proper spirit. ; Mr. Shcemaker;-predicted that they would have a classification ` . based on texture by January 1, 1937* . - ' From the remarks made during the discussion precipitated by Mr. Johnson's pretest, it was evident that the Producers realized - that they were often robbing their mineral resources, and that a fuller knowledge of their . products was needed to prevent this. REPORT (&) In the Report of the Technical Committee it was brought out that the Canadian. Johns-Manville Co. had offered to build an opener'for the Thetford group and that the Quebec Bureau of Mines had volunteered to contribute substantially toward the equipping of a laboratory in which fibres might be evaluated. The members of this Committee had, however, not yet arrived upon an agreement as to the best method of achieving this.. (e) Mr. C, H. Shoemaker and Capt, J.G.Ross were elected to represent the Association on the-new Steering Committee. - ' (f) After the Meeting I ivihited the following mills: King, Beaver and Vimy Ridge of the Asbestos Corporation; Thetford and Black Lake mills of Johnson* s Company; Bell mill of Keasbey and Mattison Co. and the mill of Canadian Johns-Manville Co. Ltd, . "*' The purpose of these inspections was to get more detailed informationabout the milling processes employed, with the view of ascertaining what differences existed in the various flow sheets. From the survey it is evident that there are numerous differences, sufficient to produce variations- in the fibres, such as we have been finding in the tests being carried out here. . ' - ' Dust wasfrrevalent in all'the mills, though in some the con--.' ditions in this respect-were very much worse than in others. .. 4. Active Silica. ;. . . : (a) The 200. lbs. ordered by the Liquid Carbonic Canadian ' Corporation were prepaxed..and shipped. .' ' ' ' . (b) A number of samples have been prepared at the request of Ur., Green, for shipment to a firm in England. Shipping instruct- ,'ions are awaited. :' . / '' ' ' ' ,_y /. : 5. Free Fibre in Tailings. . / * . ; The determination of the amount of free fibre in a. number of the samples of tailings collected some time ago was.made. The samples were also screened. . .. 6. Visit to Vermont Production Company. Inc. . -` At. the invitation of Mr. F. E. Byrnes, General Manager, I . : visited the mire and mill of the Vermont Production Co. Inc*, Hyde* Park, Vermont, formerly the Vermont Asbestos Co., but now owned by the Ruberoid Co. of Hew York. Mr. Byrnes showed me through the , ` entire property himself and explained everything in detail. They PAGE REPORT NO.CI56-- were ..putting up a large extensionto their dust settling chamber as"'they were anxious.to minimize dust and to increase production of floats* They have" a small mill which produces about 10,000 tons a year, from shingle stock down. An increase in the capacity was being considered as soon as business conditions .warranted it (Confidential). . Ur. Byrnes was very much interested in the research being done here and his company would have joined the Quebec . -Asbestos Producers* Association were it not for the fact that they were prohibited'by the United States laws* He wae6f the opinion that the industry'.needed more extensive research and .. suggested that their head office would co-operate gLadly. in an : " exchange of information. . .. 3 J ' .RCRORT NO. CI56--3^* APPENDIX A.'- "./ - THIRTY-NINTH ANNUAL MEETING OF AMERICAN SOCIETY FOE ' TESTING MATERIALS. ATLANTIC CITY.,'JUNE 29-JULY 1.19 Opening Session and'Marburg Lecture At the first session, held at 10:30 a.m. on June.30, 193^, the Secretary-Treasurer presented the Report of the Executive . "Committee, and the President, H.S.Vassar, delivered an address entitled: "The Testing of Non-Materials". ' Reprints of these are available. . . ' * . ' . " H. P. Parmalee, Editor, -Engineering'and Mining Journal, read a paper on "Relationship of A.S.T.M. to Modern Developments * . in Chemical Engineering";' This was a very general review dealing ; mainly with plastics which were dlvidedinto three groups; (1) cellu 4 lose derivatives, (2) synthetic resins,- and- (3) rubber derivatives . and rubber-like compounds. Mention was. also made ..of carbon as - a material of construction, of the new detergents,' and of metals and alloys. In discussing the latter, particular'mention was made of tellurium lead, for whioh there was claimed, greater tensile ' strength and.more resistance to fatigue and corrosion than was found in other chemical leads. The paper is printed in full- in .the July Bulletin of A.S.T.M. ' ' The Marburg Lecture was delivered by Dr.' Arthur L, .Day, .. Director, Geophysical Laboratory,. Carnegie Institution of Washingt on, on July ist. The subject was: "Developing. American Glass",In outlining the history , of the development of'the'glass\industry :in . ' . the United States, Dr. Day used many personal experiences to illustrate the various stages in this development. It was the war of 191^-1918 which stimulated American research'which led to most, important advances. Particular mention was made of the develop ment of Pyrex glass and glass-making machinery. The pouring of the 2G0-inch mirror for the Mount Wilson Observatory was discussed. Several reels of motion pictures and numerous slides were shown. UtiSc.J i V-/* - REPORT NO. Oi.pO-.JO* APPESDIX I*.- I* ' .- Interviews - A#S#f#M Annual'.-Meeting, 1936* ' ' . ` " V-.-;-- V 1. Mr; Bradley Dewey, President9 -.-Dewey and Almy Chemical . . ' .. . Company* Cambridge,.-.-Mass* " ' " , I had an bppoxtTmity-to* talk; t6 Mr# Dewey after the . meeting of Committee 6-1 on Cement; His. company- need to own the Multibestos Co#, which they recently: sold.to the Raybestos-Hanhattan group, and considerable work, on .asbestos-has been done in their. laboratories, which, I .was given to-understand', are well, equipped; and have a staff of about 60',' .; They have been specializing in colloidal phenomena with particular regard-to dispersion 'and?~ . wetting, Mr#.Dewey mentioned that they-irere doing some ..work, for.. w. . Johns-Manvilla, and it'was his opinion that:!the subject of. dust would soon be one of the .most inportant* problems* in -"the asbestos . industry# He thought that this dust was-.definitely harmful, the Russian asbestos being perhaps-the. worst, in'this respect. For the present this information (or-opinion) shouldbe. kept confidential, ..A cordial invitation to visit their laboratories, was extended, . . 2', Mr.' K.TT, Greider, Director of Research, Philip-Carey Manufacturing...Co#, Lookland, Ohio, -- . . . Hr# Greider gave a paper (with G#A# Fasold)r ''"Comparison: of Abrasion Test Methods for embedding of granular mineral sur- . . . facing on Asphalt Roofing", at- the session; devoted to Bituminous ' -Materials, After the session I-had: a-short-chat with him, during- which he told me that their, work consisted;mainly of testing and- investigations relative to-, the products-.they-manufacture#.There . . was practically no research on fibre';;`- Mr#'Greider .stated, that the- reports which we issue-to the Producers find-their-'way . to his-\ ' -office via Mr# Spafford#'-".. r' ;- '. C. :. 3 Mr# G#A# Alberts- Phenolite . Division,NationAH Vulcanized . Fibre; Co# , Kenneth Square, Penn'. . .. Had a talk with this man while -;*aiting 'for one of the subcommittee meetings to begin# His company,uses .considerable . asbestos, but would like to use more because of its1 resistance , to heat and deterioration:, in general#'.- The::eieotri.cal insulation properties- would, have^ to be improved, however* ./'They,.-would be glad . to discuss tills problem at any time# ` ' ' 4# Mr# J#H# Adams, Bakelite Corporation, Bound Brook, N.J. His company, Mr. Adams stated,', was very-much, interested- in the use of asbestos as a filler# He suggested that a visit to . their plant and an interview..with Hr# ,W#W*. -Zeinian would, be . : mutually advantageous# ; -. ' '