ISO 15023-1:2017建立了聚乙烯醇（PVAL）材料的命名体系，可作为规范的基础。 聚乙烯醇（PVAL）材料的类型通过基于指定属性的分类系统相互区分: a） 水解度， b） 规定条件下水溶液的粘度 以及关于基本聚合物参数、预期用途和/或加工方法、重要性能、添加剂、着色剂、填料和增强材料的信息。 ISO 15023-1:2017适用于水解度不低于70 mol%的所有聚乙烯醇（PVAL）材料。 它适用于粉末、颗粒或颗粒形式的正常使用材料，以及未改性或未经着色剂、添加剂、填料等改性的材料。 这并不意味着具有相同名称的材料必然具有相同的性能。 本文件不提供指定材料所需的工程数据、性能数据或加工条件数据。如果需要此类附加性能，则应根据ISO 15023-2中规定的试验方法（如适用）进行测定。 为了指定热塑性材料满足特定规范，数据块5中给出了要求（见4.1）。

ISO 15023-1:2017 establishes a system of designation for poly(vinyl alcohol) (PVAL) materials which may be used as the basis for specifications. The types of poly(vinyl alcohol) (PVAL) materials are differentiated from each other by a classification system based on the designatory properties: a) degree of hydrolysis, b) viscosity of aqueous solution under defined conditions and on information about basic polymer parameters, intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials. ISO 15023-1:2017 is applicable to all poly(vinyl alcohol) (PVAL) materials with a degree of hydrolysis not less than 70 mol%. It applies to materials ready for normal use in the form of powder, granules or pellets and to materials unmodified or modified by colorants, additives, fillers, etc. It is not intended to imply that materials having the same designation give necessarily the same performance. This document does not provide engineering data, performance data or data on processing conditions which may be required to specify a material. If such additional properties are required, they are intended to be determined in accordance with the test methods specified in ISO 15023-2, if suitable. In order to designate a thermoplastic material to meet particular specifications, the requirements are given in data block 5 (see 4.1).