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performance in demanding applications, such as this automotive exhaust gas recirculation valve. the diffusion coefficient for water in some grades of solvay's amodel ppa, for instance, is approximately % that of nylon at °f ( °c). put another way, ppa generally will not absorb more than % of its weight
titration, which uses a moisture-reactant chemical, offers an efficient, rapid, and highly precise method for determining water content in resins. gravimetric moisture analyzers, while less precise than titration, may be more suitable for a manufacturing setting. these devices comprise a sensitive weigh scale...
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