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See Chinese contents: GB/T 41880-2022 GB/T 41880-2022: Plastics -- Epoxy resins -- Determination of electrical conductivity of aqueous resin extracts
This document describes a method for determining the electrical conductivity of the aqueous extract obtained by extracting epoxy resins with water at 95 ¡ãC. This document is only applicable to epoxy resins that are in a molten state at extraction temperature (95 ¡ãC). This method is of great significance to epoxy resin used as insulating material for electronic equipment. The electrical conductivity of the extract is used to evaluate the concentration of ionic substances in the resin.
