CPAChem Products - Instrument Check Standards

All Instrument Check Standards produced by CPAchem use high-purity metals or salts in sub-boiling distilled acids. CPAchem's quality system is currently ISO 9001 certified. CPAchem's quality control laboratory is ISO 17025:2005 registered/certified. CPAchem is ISO 17034:2016 registered/certified while demonstrating technical competence in the field of Reference Material Producer.