Acid Number / Total Acid Number Certified Reference Materials and Standards

ISO/IEC 17025 and ISO 17034 Acid Number (AN) / Total Acid Number (TAN) Certified Reference Material (CRM) intended to be used for verification of measuring equipment, method validation, method verification, or other quality control processes applicable for the test method ASTM D664, or test methods IP 177, ISO 6619, or other applicable methods.

ARO's Acid Number (AN) / Total Acid Number (TAN) Certified Reference Material has been characterised in accordance with ASTM D664, Method A. Manufacture and characterisation has been performed in accordance with ARO's accreditation to ISO/IEC 17025 and ISO 17034, UKAS CAB No. 27393.