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EDA Code PF 2 PF 1 V-7 V-6 V-5 V-4 Description Kalrez perfluoreolastomer #1045 - Ti02 filler with Mg added to improve com pound acid resistance. Kalrez perfluoroelastomer #1050 - carbon-black filler with Pb added to improve compound acid resistance. Peroxide cured Viton GH terpolymer. Double peroxide cured Viton GH terpolymer. Peroxide cured Viton #VT-R-4590 terpolymer Peroxide/metal oxide cured Viton GH #0103-87365 ter polymer. Fairprene* VT007 (Viton over TFE cloth). Litharged Viton copolymer. Pink colored Viton. Test Results, Comments No apparent physical degradation. Low levels Fe and Ca with higher levels of Ca in solution. This is an expensive compound. A.A. showed Cu+Fe,- and high levels Pb, Mg, Si, and Ca. Fading of color observed but no excessively high levels of ele ments noted in solution. The pH rose to 3.40. Fading in color observed, but no excessively high levels of ele ments noted in solution. The pH rose from 1.0 to 3.28 at 50°C. No apparent physical change and pH stable. High levels of Pb noted in solution. No apparent physical change ob served though high levels of Ca and some Pb noted in solutions. The pH increase of 1.0 4.2 observed at 50°C. A weight increase of 69.3% was observed at 50°C in chlorinated ZnCl2 along with pronounced ex pansion of sample. High UNSUIT ABLE levels of Fe, Mg, Pb, Si, and Ca in solution. Chlorine gas appears to have pitted surface of sample. Viton turned yellow in color. UNSUITABLE. V-2 V-l Table 33-1 EVALUATION OF FLUOREOLASTOMES * Fairprene is a DuPont tradename. 33-13PDF Image | Development of the Zinc-Chlorine Battery for Utility
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