DS DS/EN ISO 4629
DS DSEN SO 4629 1998-JUL-23 Bnders for pants and varnshes - Determnaton of hydroxyl value - Ttrmetrc method
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This Standard 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.