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ISO 3771:1994

Petroleum products — Determination of base number — Perchloric acid potentiometric titration method

Aug 4, 1994
95.99   Withdrawal of Standard   Sep 5, 2011

General information

95.99     Sep 5, 2011

ISO

ISO/TC 28

International Standard

75.080  

English  

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Scope

Cancels and replaces the first edition (1977). Establishes a method for the determination of basic constituents in petroleum products by potentiometric titration with perchloric acid in glacial acetic acid. Two variations of the method are described, using different titration solvent volumes and test sample masses. The ranges of base number values for which precision values for the method have been established are: unused oils - base numbers from 6 to 70; additive concentrates - base numbers from 5 to 300; used oils on which were employed the forward titrations - base numbers from 5 to 27.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3771:1977

NOW

WITHDRAWN
ISO 3771:1994
95.99 Withdrawal of Standard
Sep 5, 2011

REVISED BY

PUBLISHED
ISO 3771:2011

National adoptions

SRPS ISO 3771:1999  
ISS

Petroleum products — Determination of base number — Perchloric acid potentiometric titration method

95.99   Withdrawal of Standard

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