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

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).

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

Frequently Bought Together

Acetone ≥99%, TECHNICAL

: VWR Chemicals

Acetone, EMSURE® ACS, ISO, Reag. Ph. Eur. for analysis, Supelco®

: Merck

2-Propanol ≥99.8%, HiPerSolv CHROMANORM® for HPLC

: VWR Chemicals

Acetonitrile, anhydrous (max. 0.003% H₂O) ≥99.95%, HiPerSolv CHROMANORM® Reag. USP, Reag. Ph. Eur., ACS, super gradient grade suitable for UPLC/UHPLC instruments

: VWR Chemicals

n-Heptane ≥99.0%, AnalaR NORMAPUR® analytical reagent

: VWR Chemicals

Acetonitrile ≥99.9%, LiChrosolv® Reag. Ph. Eur., gradient grade for liquid chromatography, Supelco®

: Merck

Methanol, LiChrosolv®, hypergrade for LC-MS, for HPLC, Supelco®

: Merck

Glycerine ≥99.5%, AnalaR NORMAPUR® ACS analytical reagent, redistilled

: VWR Chemicals

Methanol ≥99.8%, HiPerSolv CHROMANORM® Reag. Ph. Eur., gradient grade for HPLC

: VWR Chemicals

Water, HiPerSolv CHROMANORM® for HPLC

: VWR Chemicals

Tetrahydrofuran stabilised, EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

: Merck

Water, LiChrosolv® for chromatography, for LC-MS, Supelco®

: Merck

2-Propanol, EMSURE® ACS, ISO, Reag. Ph. Eur. for analysis, Supelco®

: Merck

Water, HiPerSolv CHROMANORM® for LC-MS, suitable for UPLC/UHPLC instruments

: VWR Chemicals

Acetone ≥99.8%, HiPerSolv CHROMANORM® for HPLC

: VWR Chemicals