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SRPS ISO 3771:2014

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

Sep 22, 2014
Sep 22, 2014

General information

90.93     Sep 26, 2022

90.20    Jul 15, 2027

ISS

B028-1

International Standard

75.080  

Serbian  

Plan za 2013. godinu Bio je planiran za usvajanje na eng ali je odlučeno da se ipak prevodi.

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Scope

ISO 3771:2011 specifies a method for the determination of basic constituents in petroleum products by potentiometric titration with perchloric acid in glacial acetic acid.
The constituents that can be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (e.g. soaps), basic salts of polyacid bases, and salts of heavy metals.
The ranges of base number values for which precision values for the method have been established are:

unused oils: base numbers from 3 to 45;
additive concentrates: base numbers from 5 to 45;
used oils: base numbers from 3 to 30.


Life cycle

PREVIOUSLY

WITHDRAWN
SRPS ISO 3771:1999

NOW

PUBLISHED
SRPS ISO 3771:2014
90.93 Standard confirmed
Sep 26, 2022

Related project

Adopted from ISO 3771:2011