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ISO 3681:2018

Binders for paints and varnishes - Determination of saponification value - Titrimetric method
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ISO 3681:2018

Binders for paints and varnishes - Determination of saponification value - Titrimetric method

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This document specifies a titrimetric method for determining the esterified-acid content in binders for paints and varnishes, free acids and acid anhydrides being necessarily included in the result obtained.

Because different binders vary in their resistance to saponification, this document is of limited applicability. If necessary, completeness of saponification can be checked by repeating the test under more severe conditions achieved by the use of longer saponification time, more concentrated potassium hydroxide solution, or a higher-boiling alcohol as solvent.

Annex A specifies a procedure suitable for binders that saponify with difficulty.

The method is not applicable to those materials that show further reaction with alkalis beyond normal saponification.

SDO ISO: International Organization for Standardization
Document Number ISO 3681
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 35
Publish Date Document Id Type View
Not Available ISO 3681:2018 Revision