Document 7R8Yvxwe06MZrj5NdEKMgDBKo

u. UNION CARBIDE COSPQRATtON CHEMICALS WO PLASTICS P.O.BOX *3(1, SOUTH CHAPl.esrON, W, UA. 2S303 e. , > November 4, 1974 Mr,. Bruce Euchne r Glidden Durkee Dwight P. Joyce Research Center 16651 Srague Road Strongsville, Ohio 44136 received ' NOV 111374 fcR WHEEL**. JR. Dear Bruce: The attached report describes the vinyl chloride (VCM) monomer content of UCAR latex 1000 shipments. Efforts continue to reduce the current average level of 63ppm by weight. In the course of this work, new chromato graphic columns had to be found and calibrated because our original method suffered from a severe Interference from acetaldehyde. Analytical studies are continuing to define whether or not the observed VCMpeak has additional interferences. We have not yet been able to measure these low levels by an independent analytical technique. As our studies progress, we will continue to inform you-of our results. If you need help in monitor ing your employees at a selected paint plant, we. would gladly collect duplicate samples to compare your analyzer with ours. I ' The analytical results and analytical methods for VCM analysis in both latexes and air were transmitted and discussed with your Mr. Swafford on October 18 by telephone. If you need additional Information, please contact me. Very truly yours, '4V*#- W. P. Miller *WPM/daq CC: C. G. Herion-Cleveland DSO ,:-Z ucc 013128 THE VINYL CHLORIDE MONOMER (VCM) CONTENT OF UCAR LATEX 1000 SHIPMENTS TO GLIDDEN Authors: A. E. Gabany tf. P. Miller T. R. Smith Date: November 4, 1974 SUMMARY. UCAR Latex 1000 shipments contain an averag of 63.5ppm by weight VCM 22.5 (standard deviation) with a range from 25 to 113ppm. Analytical work is in progress to show that interferences do not exist. Process work continues to lower the VCM content. DISCUSSION Table I contains measurements on a selected series of samples including production from both our Tucker, Georgia and Somerset, New Jersey JENNAT latex plants to the six Glidden-Durkee sites. No significant differences in product shipped from our plants to Glidden plants was observed. The analytical method used in this study is attached. UCC 013129