标准编号：ISO 15023-2:2019
中文名称：塑料 聚乙烯醇（PVAL）材料 第2部分：性能的测定
英文名称：Plastics — Poly(vinyl alcohol) (PVAL) materials — Part 2: Determination of properties
发布日期：2019-02
标准范围
This document specifies the methods to be used in determining the properties of poly(vinyl alcohol),
which is normally prepared by hydrolysis of poly(vinyl acetate) and whose composition comprises vinyl
alcohol monomeric units and vinyl acetate monomeric units. This document is applicable to poly(vinyl
alcohol) with a vinyl alcohol unit content (degree of hydrolysis) from 70 mol% to 100 mol%.
In addition to the designatory properties specified in ISO 15023-1 (degree of hydrolysis and viscosity of
an aqueous solution), this document includes a number of other properties which are commonly used to
specify PVAL materials (see Table 1).
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