Reference number
ISO 4629-3:2018
ISO 4629-3:2018
© ISO 2025
International Standard
ISO 4629-3:2018
Binders for paints and varnishes — Determination of hydroxyl value — Part 3: Rapid test
Edition 1
2018-10
2018-10
ISO 4629-3:2018
73523
Published
(Edition 1, 2018)
This publication was last reviewed and confirmed in 2024.
Therefore this version remains current.
Abstract
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.
