1811671

ISO 3771:2011

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

standard by International Organization for Standardization , 09/15/2011

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Full Description

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.
 

Product Details

Published:
09/15/2011
File Size:
1 file , 860 KB
Same As:
BS ISO 3771:2011, BS ISO 3771:2011
Note:
This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. ISO 3771:2011

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

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  2. ISO 3771:1994


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

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