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EN 12634:1998

Petroleum products and lubricants - Determination of acid number - Non-aqueous potentiometric titration method

Publication date:   Mar 19, 2004

General information

90.93 Standard confirmed   Feb 7, 2023

CEN

CEN/TC 19 Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin.

European Norm

75.100   Lubricants, industrial oils and related products

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Scope

This European Standard specifies a method for determination of acid number by potentiometric titration, of lubricating oils and additives soluble in mixtures of propan-2-ol, dimethylsulfoxide and toluene. It is applicable in the range 0,1 mg KOH/g to 250 mg KOH/g, and to unused and used lubricating oils and additives.

Life cycle

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PUBLISHED
EN 12634:1998
90.93 Standard confirmed
Feb 7, 2023