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

SS-EN-ISO-3681 - 2018 EDITION - CURRENT
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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.

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87.060.20 (Binders)

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Designation Name

SS-EN ISO 3681:2018

Revision Level

2018 EDITION

Status

Current

Publication Date

Dec. 19, 2018

Language(s)

English

Page Count

20

International Equivalent

EN ISO 3681:2018(IDT); ISO 3681:2018(IDT)