Document GKZ4jwQZG5w8xkow4mvov88e4

*- FRICTION MATERIALS STANDARDS INSTITUTE, INC., 210, ROUTE r4, r'rtiflwua, Me* otnsci 3w -LT ( N NO. 423 February 18, 1972 PLAINTIFF'S EXHIBIT AB-229 To: ALL MEMBERS SU8JECT: Demonstration - Membrane Filter Method for Airborne Asbestos Measurement ' By: iV. Reitze, Johns-Manvi 1 le Corporation. By earlier bulletins, the membership had been advised that Mr. W. Reitze of Johns-Manvilie Corporation would give a demonstration on the standard method for measuring airborne asbestos fibers. Mr. Reitze made this presentation on Thursday. February 10, 1972 at the Institute Office in Paramus, New Jersey. Those Attending; J. Greenen, President of F.M.S.I. ) R. Hemnelgarn ) ) K. Barnhardt ) J. Henning J. Graham M. Jacko W. Richards W. Reitze E. W. Drislane ... Mar'emont Corporation Grizzly Brake Division * World Sestos Company, Division of -------- _ The Firestone Tirei & Rubber Company Carlisle Corporation . Molded Materials Division Bendix Corporation . Friction Materials Division Thiokol Chemical Corporation Johns-Manvilie Corporation Friction Materials Standards Institute, fnc* MEASURING AIRBORNE ASBESTOS FIBERS Mr. Reitze discussed the earlier Impinger Method (no longer accepted) where the air sample is passed through a glass tube bubbler and the fiber is trapped with a subsequent count of fibers. The currently accepted method calls for measurement of airborne asbestos fiber by the membrane filter method. Briefly, the pick-up is worn by a worker in the area to be measured with a small battery operated vacuum pump taking in air over a specified period - of different times, say 60 minutes,' 90 minutes, or four hours. The asbestos fiber is traoped by the membrane filter and then carefully sealed and sent to the laboratory. The sample is examined using an optical micro scope where a count of fibers is made. ' The details of the test are described in: "Measurement of Airborne Asbestos Fiber by the Membrane Filter Method" published by the Asbestos Textile Institute. Asbestos Textile Institute P. 0. Eox #239 Pompton Lakes, New Jersey #0744-2 (Price $1.00 per copy) Thg Institute has ordered copies and will send one to each Delegate. , If additional copies are desired, it is suggested that the member order the copies directly from the Asbestos Textile Institute. C' V.' Bulletin ;/42S -4- r eoruar y 7 4 c. Mr. Reitze's demc ration will not be detailed a he booklet mentioned covers the equipment and procedures in detail. ccmveots amp suggestions The cost of pad and filters inserted are 70 per piece, from .Mi 11 ipore Corpora tion, Bedford* Massachusetts iiO1730. It is suggested that four to aix pumps (costing about $150. each) be used so that a supervisor, can monitor more than one test at a time. A battery charger will cost about 550. One should have one charger for every two pumps. Seeding (or sabotage) when a worker throws additional asbestos to the intake may ordinarily be detected when the sample is counted under the microscope, but additional tests may be necessary in the same area with different workers. .A pump could be mounted in a fixed position near the work place but the proper method is to have the pump attached with the intake facing, down near where the worker breathes*. . A binocular microscope with phase contrast illumination set for 4Q0/430X mag nification is required. A Bausch and Lomb microscope costing about 1,200.-1,500. is the basic instrument. Binocular microscopes with additional features could : well ba worth the additional cost, but nrofessional advice should be used in-tha_ selection of equipment. - .. OUTSIDE SERVICES AMD TRAINING It may be feasible to have outsiders do the full job - from sampling through examination and reporting. Others will do the analysis work only where the samples are mailed to the laboratories. Tracerlabs in California will do shalysis work for about $50.-60. per analysis. Johns-Manville will do the full job for a fee (Contact Mr. W. Reitze, Manager Industrial Hygiene Engineering Service, Johns-Manville Corporation, P. 0. Box #5108, Denver, Colorado #80217) ~ George-Clayton Labs, Southfield, Michigan -wi 11 do the full job for a fee. There are other labs that may do the entire package or the analysis work only. Jehns-Manvi1le indicated it would be willing to train personnel in the tech nique in a two day period. They would take one trainee, or at most two trainees, to one instructor for $200. a day. These sessions would be at Phindern (Somerville) New Jersey or Waukhegan, Illinois. Again, the contact would be with Mr. Reitze in Denver. It is suggested that the members familiarize themselves with OSHA's proposed standards. A copy of these standards, as issued in the Federal Register on _ January 12, 1972, is enclosed with Bullet'in #1271 . Asbestos Study Committee Delegates & Alternates * British Friction Materials Council AIA/NA and L. D. Stickles, Counsel E. IV. CRISLANE Executive Secretary .