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BSI BS ISO 3771:2011

Petroleum products. Determination of base number. Perchloric acid potentiometric titration method
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BSI BS ISO 3771:2011

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

PUBLISH DATE 2011
PAGES 18
BSI BS ISO 3771:2011

This International Standard 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.

SDO BSI: British Standards Institution
Document Number ISO 3771
Publication Date Sept. 30, 2011
Language en - English
Page Count
Revision Level
Supercedes
Committee PTI/13
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