ISO 3771
Petroleum products - Determination of base number - Perchloric acid potentiometric titration method
Mineralölerzeugnisse - Bestimmung der Basenzahl - Potentiometrische Titration mit Perchlorsäure
Responsible national committee
NA 062-06-61 AA - Testing of lubricating oils, other oils and Paraffin
Responsible international committee
ISO/TC 28 - Petroleum and related products, fuels and lubricants from natural or synthetic sources