ISO 15023-2-2003 塑料.聚乙烯醇(PVAL)材料.第2部分:特性的测定

标准号：ISO 15023-2-2003
中文标准名称：塑料.聚乙烯醇(PVAL)材料.第2部分:特性的测定
英文标准名称：Plastics - Poly(vinyl alcohol) (PVAL) materials - Part 2: Determination of properties
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.20
适用范围：This part of ISO 15023 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 part of ISO 15023 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 part of ISO 15023 includes a number of other properties which are commonly used to specify PVAL materials (see Table 1).