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CEN

CEN/TC 19/WG 1 - Acid and base number

Acid and base number

General Information

Status
Inactive
Parent
CEN/TC 19 - Petroleum products, lubricants and related products
Standardization Organization
ICS
Directive
Mandate
50
CEN
EN 12634:1998(Main)
Petroleum products and lubricants - Determination of acid number - Non-aqueous potentiometric titration method
SIST EN 12634:1999

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.

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