This standard was last reviewed and confirmed in 2016. Therefore this version remains current.
Abstract Preview
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.
General information
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Status : PublishedPublication date : 2011-09
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Edition : 3Number of pages : 8
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Technical Committee:Petroleum and related products, fuels and lubricants from natural or synthetic sources
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- ICS :
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Petroleum products in general
Buy this standard
Format | Language | |
---|---|---|
Paper |
- CHF58
Life cycle
A standard is reviewed every 5 years
Revisions / Corrigenda
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Previously
ISO 3771:1994
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Now confirmed
ISO 3771:2011
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