Document ymb5qKyyN0Q8OYGaxpJ2R3kY2

A1 baker Buddy Balentine Tony Ekker Donald Fahre Grey Fuontes Al Kirby Ramon Lopez Hob Rouse way 3, 1 9`?4 Process Review' - Fiector System on Vinvl II Loading Am Per our meeting,. the following items will be/have been completed: 1. The 3" Chemiflex hose will be checked for ground continuity now and on an annual basis per Safety Checklist C-9. 2. Written procedures will be modified to include signs of liquid collection in the spool piece, as well as shutdown procedures which would be immediately followed. A copy of those procedures will be forwarded to all personnel listed above. 3. The spool piece will be modified by Doc!: personnel to include a pressure gauge and a 1/2" valved sample point. Vinyl II personnel will use this instrumentation to measure shin valve leakage and sampling for decontamination analyses. A. Buddy bureau researched his files for vinyl chloride barge/ship disconnect excursions (both Docks, 1963-1964 YTP, workers using breathim1 air during disconnect;). Of the 64 personnel samples analysed, 46 were ever 5 op"1, 'with these 48 averaging 69 ppm. Of these 4;), 26 can he attributed to the bock loading arm and vent line (11), skip header valves (13), and barge header valves (2) leaking, bis records included no distinction between liquid or vapor leakage. 5. Pcssibilitv OJ Flammable .Mixture Kotinstream of the Fiector Following Tony's initiative, I ran through rough capacity calculations for a 2", Model GL (new1 -7 for 2hA) Pennerthy ejector, raised on the following conditions: 202 CFM L'itrogen usage (assumed epuiv. to air), and 32 CFM suction capacity, 5" i!g vacuum at suction, qperatinp Litropen pressure of 100 psip, vinyl and air- concentrations ST the suction varying from 5 to 954 by volume, I calculated the following vinyl chloride/oxypen concentrations downstream of the ej ector: Suction Co"' wt >s i t i on 56 vinvl, 6 f /- a i r 14;. vinvl, in/, air Downstream of Fj ector Tbrou<dnv,!t; ft; FI a Volvn e 6 4.1 vinv1 1.4p vinyl 77.9 air 5.76 oxy'jfT. 2u2 6 it roc on 92.6'/, r: lire men 11.5 vinvl 76.5 ait 20 2 nicro'-o.in 4. ,v6 vinvl 5.2' cvvgen 40.7 nitrogen ( Of i". t inueo) Do Co/sjp Suet ion Conno;s 11ion 50% vinvl, 50% air Downstream of Ej ector Throughout fCF"') Volume % 41 vinyl 14.5% vinyl 41 air 3.0% oxygen 202 nitrogen 02.5% nitrogen 75% vinyl, 25% air 61.5 vinyl 20.5 air 202 nitrogen 21.7% vinyl 1.5% oxygen 76.6 nitrogen 95% vinvl, 5% air 77.9 vinyl 4.1 air 202 nitrogen 27.4% vinyl 0.3% oxygen 72.3% nitrogen .After relaying these numbers to Bruce Powers, Michigan Division, he consulted his report "Review of Vinyl Chloride Flammability Characteristics (b'CT# 63-27) and concluded that none of these mixtures were flammable. Furthermore, he stated that below a critical oxygen concentration of 97 (maximum downstream under above stated conditions is 6%) the vinyl chloride will not support combustion. If you have any questions, please call me at 6917, L'layne . i-iyatt Safety