Document jge0aK7Mz30mnQw8NExM4n6a9

MANUFACTURING - CHEM!STS'cASSOCIATION 1825 CONNECTICUT AVENUE, N. W. April 1, 1974 ySif*t-A To TECHNICAIi'--TASK GROUP ON VINYL'CHLORIDE -RESEARCH ' .-. Subject i:^:;NIOSH-Recommendations-for:-Tnterim .-Sampling --i: C^ Method ~ for Vinyl - Chloride.v;.v-: .\ ^ ^Gentlemen: - .r 4* i; ;'4 Distributedherewith are the subj ect - recommendations :devefepedr^^js|c6s!H and forwarded to OSHA-on March 27, 1974. Sincerely,: 'Kenneth D. 'Johnson,; Ph.D. .Secretary ^ Technical Taslci.Grbup on .Vinyl , Chloride Research see 3-0911  i-j -:;' t-;v*:;v recommended interim osha sampling data 'sheet 1..Substance:. \-;- >'', > "2..;Scope of Method: JVinylrchlofide is a gas boiling at *-1374: degree' C -and haying; a vapor:, .^.pressure;'of 2660' min of mercury at~25-dcigreef;Cy'^rThc slower limit of..v - detection for the method is approximately.}.!; ppm/.. :j ' ^ 3.; v Sampling Equipment: \? p. ::: a) ^Personal sampling pump. .& 3: ..}b) V 250;icc}glass gas collecting tubes with teflon stopcocks 4.: Sample Size: 250 cc ' 5. Sampling Procedure: Glass Gas Collecting Tubes ay -Ther gas collecting tube rs connected at one end to the personal sampling pump. -Both stopcocks are opened and air pulled, through v\^rat approximately one liter per minute. .. - `' b) A sampling period of 15 minutes would allow collection of a representative sample of the worker environment. c) .,Stopcocks shall be closed tightly, Iclosing the stopcock nearest the pump first. 6, Analysis:- The gas collecting tube sample is analyzed directly by gas chromatography. 7. Shipping InstructIons: The gas.collecting.tube should be wrapped with cushioning material,, placed .in the shipping case and shipped via Air Mail, to the OSHA laboratory. Salt Lake Cityi : s'.'.': 3/28/74 Xerox copy;to Dr. Johnson see 3-0912 -'r-Vw/y * # N. o. voy-^vu MANUFACTURING CHEMISTS"ASSOCIATION^ ;" ;rl?5;?9-^^C;T!QUT^AVG.NUE,_NJ y/. SJf4SQHGBJljy^0fc?PAR?00 Environment and Safety.:v: RECEIVED MAR 18 1974 ROUTING I.iOl, OiSC. INFO. (202) 483-6126 March 15, ,1974 TO: !'MANAGEMENT CONTACTS OF COMPANIES SI - RESEARCH PROGRAM "THI -mirffl 0RIDE.-~i - i TECHNICAL task GROUP ON vinyl CHLOSTDE^ RBSBARCt FILE ;v : :Sub ject: Work Practice Standards i or Vitrp& Ktfiorowle Plans & Analysis Gentlemen: iV, Enclosed herewith is the Recommended OccupationalsHealth Standard m for the Manufacture of Synthetic Polymer from Vinyl Chloride sent- by NIOSH to OSHA on March 11, It is expected that OSHA will soon publish their pro-'*!*:. posed standard and that they will allow thirty days for comment. In the judgment of many of our group, it is important that industry comment on inappropriate recommendations of NIOSH promptly, and certainly before, rather than merely after, OSHA has published its proposed standards. Also enclosed, for.your review and comment, is a draft of a work practices standard for VCM synthesis prepared by Dr. Bell. Sincerely, KDJ:bal Enclosures (2) cc: D. P. Duffield, M. D. Mr. A. W. Barnes Dr. Tiziano Garlanda . Kenneth D. Johnson, Ph.D. Secretary Technical Task Group on Vinyl Chloride Research SCC 3-091