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BSI BS EN ISO 4629-1:2016

Binders for paints and varnishes. Determination of hydroxyl value -- Titrimetric method without using a catalyst
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BSI BS EN ISO 4629-1:2016

Binders for paints and varnishes. Determination of hydroxyl value -- Titrimetric method without using a catalyst

PUBLISH DATE 2016
PAGES 16
BSI BS EN ISO 4629-1:2016

This part of ISO 4629 specifies a titrimetric method for determining the free hydroxyl groups in binders and binder solutions for paints and varnishes. The hydroxyl groups may be present as polyhydric alcohols, partial esters, polyester end groups or hydroxylated fatty acids.

This method is not applicable to resins containing both hydroxyl groups and epoxy groups, because the latter will also be included in the result. Also the method is not applicable to cellulose nitrate or to phenolic resins.

NOTE 1

If, in the case of binder solutions, the hydroxyl value of the binder only is to be determined, the possibility that other constituents of the binder solution may contain hydroxyl groups has to be taken into account.

NOTE 2

A method for the determination of the hydroxyl value of epoxy resins is specified in ISO 7142 [1 ].

SDO BSI: British Standards Institution
Document Number ISO 4629-1
Publication Date July 31, 2016
Language en - English
Page Count
Revision Level
Supercedes
Committee STI/10
Publish Date Document Id Type View
July 31, 2016 BS EN ISO 4629-1:2016 Revision