Download or read book GB T 41880 2022 Translated English of Chinese Standard GB T 41880 2022 GBT41880 2022 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-01-24 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.