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ISO 3771

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

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Organization: ISO
Publication Date: 15 September 2011
Status: active
Page Count: 14
ICS Code (Petroleum products in general): 75.080
scope:

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.

Document History

ISO 3771
September 15, 2011
Petroleum products — Determination of base number — Perchloric acid potentiometric titration method
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...
January 1, 1994
Petroleum Products - Determination of Base Number - Perchloric Acid Potentiometric Titration Method
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...

References

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