This part of ISO 21627 specifies a direct potentiometric method for the determination of inorganic chlorine in epoxy resins, also called “ionic chlorine”.The inorganic chlorine content is expressed in milligrams per kilogram of epoxy resin.
DS/EN ISO 21627-1:2009 history
2009DS/EN ISO 21627-1:2009 Plastics - Epoxy resins - Determination of chlorine content - Part 1: Inorganic chlorine