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BS EN ISO 3681:2018

BS EN ISO 3681:2018

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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

19-12-2018

Publisher

British Standards Institution

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.

Committee
STI/10
DocumentType
Standard
ISBN
9780580521232
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

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.

AnnexA 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.

Standards Relationship
EN ISO 3681:2018 Identical
EN ISO 3681:1998 Identical
ISO 3681:2018 Identical

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Hardcopy - English
PDF - English
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