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  • BSI
    BS EN ISO 3681:2018 Binders for paints and varnishes. Determination of saponification value. Titrimetric method
    Edition: 2018
    $281.30
    / user per year

Description of BS EN ISO 3681:2018 2018

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.



Standard NumberBS EN ISO 3681:2018
TitleBinders for paints and varnishes. Determination of saponification value. Titrimetric method
StatusConfirmed
Publication Date2018-12-19
ReplacesBS EN ISO 3681:1998
Identical National Standard OfEN ISO 3681:2018, ISO 3681:2018
DescriptorsVarnishes, Chemical analysis and testing, Determination of content, Saponification number, Paints, Binding agents, Volumetric analysis, Saponifiable matter determination, Test equipment
ICS87.060.20 Binders
CommitteeSTI/10
ISBN978 0 580 52123 2
PublisherBSI
Pages14

The following editions for this book are also available...

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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