Reference materials, base number standards, in hydrocarbon oil

These reference materials are intended for use in the determination of base number (AN) in petroleum products in accordance with ASTM D2896/IP 276 (by potentiometric perchloric acid titration) or ASTM D4739 (by potentiometric titration).

: Accredited to ISO 9001, ISO 17034, and ISO/IEC 17025, traceabile to NIST, SRM.

: Each standard is supplied with a full certificate of analysis (COA) which states the certified values and uncertainty by both ASTM D2896 and D4739.