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IPI tests paper-based materials and adhesives for pH levels using a modification (described in ISO 18902) of the standardized test, TAPPI T 509 Hydrogen Ion Concentration (pH) of Paper Extracts (Cold ...
(WLUK) -- UW-Oshkosh is offering discounted well water quality testing to Door County residents. It's part of the university's program to provide education about the importance of testing well water ...