TAN&TBN Titration

Determination of  total acid or base number of oils and fats

Volumetric Titrator 7000

The TAN/TBN Titrator for determination of TAN or TBN is conform to standards:

IEC 62021-1
Insulating Liquids – Determination of Acidity – Part 1: Automatic Potentiometric Titration

ISO 3771
Petroleum Products – Determination of Base Number – Perchloric Acid Potentiometric Titration Method

ASTM D 664
Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration

ASTM D 2896
Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration

ASTM D 4739
Standard Test Method for Base Number Determination by Potentiometric Titration



The value of TAN/TBN is an indication of age and quality of oils and fats. The device is suitable for analysis of

transformer oils

natural and artificial fats

mineral oil products


food fats (e. g. olive oil, butter


Measurement method:

Volumetric titration

Type of result:

mg KOH/g oil or using the formula generator

Measuring range:

0.01 … 250 mg KOH/g oil

Resolution of the display:

0.01 mg KOH/g oil

Power supply:

External plug-in power supply: 100 – 240 V, 50/60 Hz

Power input:

30 VA

Stirrer connection:

12 V DC out, 500 mA


30 x 45 x 30 cm (W x H x D), height with exchange unit


Approx. 3.5 kg (with exchange unit and empty reagent bottle)



Made in Germany