ISO 4629-1:2016 油漆和清漆用粘结剂 羟值测定 第1部分：非催化剂滴定法

标准编号：ISO 4629-1:2016

中文名称：油漆和清漆用粘结剂 羟值测定 第1部分：非催化剂滴定法

英文名称：Binders for paints and varnishes — Determination of hydroxyl value — Part 1: Titrimetric method without using a catalyst

发布日期：2016-06

标准范围

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].

标准预览图