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Homepage>BS Standards>87 PAINT AND COLOUR INDUSTRIES>87.060 Paint ingredients>87.060.20 Binders>BS EN ISO 4629-3:2020 Binders for paints and varnishes. Determination of hydroxyl value Rapid test
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immediate downloadReleased: 2020-09-18
BS EN ISO 4629-3:2020 Binders for paints and varnishes. Determination of hydroxyl value Rapid test

BS EN ISO 4629-3:2020

Binders for paints and varnishes. Determination of hydroxyl value Rapid test

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Standard number:BS EN ISO 4629-3:2020
Pages:14
Released:2020-09-18
ISBN:978 0 539 12786 7
Status:Standard
DESCRIPTION

BS EN ISO 4629-3:2020


This standard BS EN ISO 4629-3:2020 Binders for paints and varnishes. Determination of hydroxyl value is classified in these ICS categories:
  • 87.060.20 Binders

This document specifies a titrimetric method for determining the hydroxyl groups in resins and binders for paints and varnishes.

This method is primarily suitable for neutral media. Acidic products provide higher values; neutral products provide, through neutralization of the acidic carbamates, lower values. For these products, preliminary tests are performed to ensure the applicability of the method.