EN ISO 15023-2-2019

Plastics - Poly(vinyl alcohol) (PVAL) materials - Part 2: Determination of properties


 

 

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标准号
EN ISO 15023-2-2019
发布日期
2019年04月01日
实施日期
2019年04月19日
废止日期
中国标准分类号
/
国际标准分类号
/
发布单位
CEN - European Committee for Standardization
引用标准
26
适用范围
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).

EN ISO 15023-2-2019系列标准





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