Reference materials, acid number standards, total acid number (TAN)

About this item

Acid number reference materials are intended for use in the determination of acid number (AN) in petroleum products in accordance with ASTM D664/IP 177 (by potentiometric titration) or ASTM D974 (by colour-indicator titration).

Certifications: GMP/GLP, ISO 9001, ISO/IEC 17025 and ISO/IEC 17043 certified.

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2-Propanol, anhydrous (max. 0.003% H₂O) ≥99.8%

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Paraffin, liquid, liquid Ph. Eur.

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