Document DGoN8KO00N0Mrmk018MaqKnMQ

,sT^ "4 * 4 UNION CARBIDE CORPORATION MINING & METALS DIVISION THE DISCOVERY COMPANY P.O.BOX 573 NIAGARA FALLS.N.Y. 14302 TEL: 716-285-3311 November 6, 1972 PLAINTIFF'S EXHIBIT UC-4123 Mr. D. Nahabedian Product Manager AVCO Corporation Lowell Industrial Park Lowell, Massachusetts 01851 Dear Mr. Nahabedian: Enclosed Is a report of our dust samp Iing at your faciIity. I think you will find the report self-explanatory, however, should you have any questions please do not hesitate to call me. I have also enclosed, in duplicate, a letter requesting your permission to use the information obtained by these dust counts. We would appreciate your approval with a signature by proper authority. Very tculy yours. E. J. Kl< Customer Service Representative /cvb Enclosures cc: Mr. B. L. Inga I I s cc: C. Howland EJK NF-File HBR X4!0474 Jria/r&BS7t>& THE DISCOVERY COMPANY jIDE CORPORATION MINING & METALS DIVISION P.0. BOX 579 NIAGARA FALLS. N.Y. 14302 TEL: 716-285-3311 /vember 6, 1972 AVCO Corporation Lowell Industrial Park Lowell, Massachusetts 01851 Dear Sir: We would like to have your permission to use the information obtained in the course of the tests conducted at your facility and to furnish it to other parties without icentifying your facility as the location at which measurements were taken. The tests shall consist of taking measurements by the membrane filter method of air borne asbestos fiber generated in the course of one or more phases of your manu facturing operations. If you agree to the foregoing, please so indicate by signing and returning the enclosed copy of this letter. Such action on your part shall constitute authori zation to take such measurements at your facility and to use and disclose said information as detailed in this letter. Very truly yours. Customer Service Representative Accepted and Agreed to this day of . 197* X 410480 \v *7-V *" 7*-e--* UNION CARBIDE CORPORATION THE DISCOVERY COMPANY MINING & METALS DIVISION P.O. BOX 579 NIAGARA FALLS. N.Y. 14302 TEL: 716-285-3311 November 6, 1972 AVCO Corporation Lowell Industrial Park Lowell, Massachusetts 01851 Dear Sir: We would like to have your permission to use the information obtained in the course of the tests conducted at your facility and to furnish it to other parties without identifying your facility as the location at which measurements were taken. The tests shall consist of taking measurements by the membrane filter method of air borne asbestos fiber generated in the course of one or more phases of your manu facturing operations. If you agree to the foregoing, please so indicate by signing and returning the enclosed copy of this letter. Such action on your part shall constitute authori zation to take such measurements at your facility and to use and disclose said information as detailed in this letter. Very tcu-ly yours, < / // E. J. ,Kleber Customer Service Reoresentative Accosted end Agreed to to i s ____ day of , 197 : -410475 AIRBORNE DUST COUNTS for AVCO Corporation Lowell, Massachusetts October 24, 1972 Personnel: E. J. Kleber Union Carbide Corporation B. L. IngalIs Union Carbide C. Howland Allied Resin Corporation D. Nahabedian AVCO Corporation UNION CARBIDE CORPORATION Mining and Metals Division Niagara Falls, New York X41 0476 The results of microscope counts for air samples collected at AVCO Corporation, Lowell, Massachusetts, September 19, 1972 are attached. Apparatus A Procedure Sampling and dust counting were carried out in accordance with OSHA Regulation 1910. 93a. Unico Personal Air Samplers, calibrated to 2 liters per minute, were used to collect personal breathing zone and environmental samples on Millipore membrane filters of 0.8 micron porosity. Fiber counting was performed on a Leitz microscope utilizing phase contrast illumi nation at 400X and a Patterson Globe and Circle reticle. Total Dust was determined by light field microscopy at I00X. Test Results Two figures have been reported for each sample. They are: 1) Total Fiber - Any material 5 microns or longer having an aspect ratio of 3 or greater. Reported as fibers per milliliter. 2) Total Dust - Any fiber or particle present. Reported as million particles per cubic foot. Enclosed for reference is a copy of the OSHA Standard for exposure to asbestos dust, which includes silica and inert dust limits. X410477 SUMMARY OF DUST COUNTS N.B. No. 1929-24- Environmenta (35 min.) Description Fiber Count Fibers/ml?' 5 At - 8' from mix area on electrical boxes during dumping of 10 bags. 5-1/2' above floor 0.71 1929-24- Personal (25 min.) - Dumping 10 bags RG-244. Samplers attached to operator. 0.83 1929-24- Environmental - 15' from mixer at passageway. (Heavy (47 min.) traffic area) After dumping of RG-244 0.43 1929-24- Environmental - Same as 1929-24-1 after dumping of (45 min.) RG-244. 0.28 Tota I Dust mmppcf 0.5 0.5 0.3 0.13 X*- 10478 j QuS / C. &u -SC( /t*#ST-f/7. ..(Z-P+y?au *4<Q -A/\_ <zy< a /h ~r/<rsi~ / %. _./$-aJ -#'<?4/,,.7~>'*'<- & A ;| j Tri& 7)jy * T~o &J('fir // ' }!*&/.-,/7~Ca/tAS &* Ct \ 7~d * cy < /7 4 C 'T/* </.. /? _../7.4^i 2T<?< .. 4/4. &JAS . j/T'M aJ r TvA to \rc- z/Y /?U/ir+y <?_ 4 Tf-sAt /? o A' <*JT <? 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