ISO 4629-3:2018 Preview
Binders for paints and varnishes -- Determination of hydroxyl value -- Part 3: Rapid test
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.
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