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.
ISO 21627-1:2002 history
2009ISO 21627-1:2009 Plastics - Epoxy resins - Determination of chlorine content - Part 1: Inorganic chlorine
2002ISO 21627-1:2002 Plastics; Epoxy resins - Determination of chlorine content - Part 1: Inorganic chlorine