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Homepage>CSN Standards>67 CHEMICAL INDUSTRY PRODUCTS>6730 Coating compounds and lacquers for electrotechnical purposes, general and testing>CSN EN ISO 3681 - Binders for paints and varnishes - Determination of saponification value - Titrimetric method
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Released: 01.07.2019
CSN EN ISO 3681 - Binders for paints and varnishes - Determination of saponification value - Titrimetric method

CSN EN ISO 3681

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

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Number of Standard:CSN EN ISO 3681
Category:673042
Pages:20
Released:01.07.2019
Catalog number:507418
DESCRIPTION

CSN EN ISO 3681

CSN EN ISO 3681 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.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.