Document qd2bXKjOjDrrgGq0bGQoK5gzK

CfTAJUSMCO *o* E. I. du Pont de Nemours & Company IMCO*POATCQ Wilmington. Delaware 1989B ENGINEERING DEPARTMENT c c: L.C.S challer-Emp.Rel.-Vila. D.J.Beatty-Cent.Res.-Exp.Sra. J.E.Borden-PI-Victoria Pit. R.W.Calhoun-Tex.Fib.-Seaford Pit. J.T.Cavanaugh-Pigm.-Edge Moor Pit. H.Lewis-Plast-Carney' s Pt.Dev.Lab. W.T.Muncaster-Elaschem-V/ilm. P.A.Palmer-ESD A. J .Maj ::, Jr.-Orchem-Ch, Wks B.JStone-Design W.H.Thompson-F&F-Parlin Pit. J.C.Conrad-Photo Proa.-Parlin Pit. F.H.Whitaker-Design I.Zeise-Construction Refer to Serial Letter 4013 Dated September 11, 1972 (Second review) October 19, 1972 MEMORANDUM IIP. 2 70: D. G. WINDSOR - CHAIRMAN - EMPLOYEE RELATIONS - WILMINGTON FROM: C. . !1ARSH - STANDARDS SECTION^ Standards section - safety & fire protection subcommittee S4T - ASBESTOS DUST EXPOSURE, MEASUREMENT AND CONTROL Cur request to the Engineering Standards Committee for approval cf the above standard has brought the following additional comments: J. V. FLYNN. COMMENT BY A. J. MAJOR - ORCHEM - CHAMBERS WORKS C'OMMSNT NO. 2C - 2.4 - Control Methods, etc.: It is not clear to me' if these control methods (Section 3) are required if permissible exposure limits are otherwise met. J. v. FLYNN, COMMENTS BY A. L. LINCH - ORCHEM - CHAMBERS WORKS CwPSNT 'No. 21' - 6.3,6 - Either delete the word "approximately" in Line 1 or change "check" in Line 2 to "record", otherwise control of precision in sampling cannot be attained. The usual volumetric precision limits (95fr confidence limits) is + 10fs. COMMENT NO. 22 - 6.3.6 - Stoppers furnished with the filter units must be replaced before sealing. COMMENT NO. 23 - Section 6.4 - Lines 4, 5, and 6 - This control filter must"not be opened to the atmosphere. Delete "which has been handled.....it". J, V. FLYNN. COLS-ENTS BY J. C. WARNER - ORCHEM - CHAMBERS V/ORKS *OMMeNT Company NO. as p2r4efe- r_r6e_.d2j .1suapnpaal.iebr.,t.2O-- -urReecxopmemrieenndceshoinwdinicgatDeus P~Dount Pont is cheaper and faster. DUP ,53833 DU 062061 tin ti S.L, 4013 9/11/72 - 2- October 19, 1972 Our order Mi-997209 on IPCO showed their price $265 and delivery wc months. Order was changed to E. I. du Pont de Nemours and ompany, Explosive Products Division, Industrial Products Section. * rice was $247 and items were received in 4 days. Attached is copy of Du Pent ad on this. Sixteen Engineering Standards Committee members advise an estimated total of 675 uses for this standard as reference per year. DUP 1 153834 DU 062062