本文件建立了聚丁烯-1（PB-1）热塑性材料的命名体系，可作为规范的基础。为简单起见，本文件中使用了名称聚丁烯-1和缩写PB。 聚丁烯塑料的类型通过一个分类系统相互区分，该分类系统基于指定性能熔体体积流速的适当水平，以及关于基本聚合物参数、预期应用和/或加工方法、重要性能、添加剂、着色剂、填料和补强材料的信息。 本文件适用于所有丁烯-1均聚物和丁烯-1共聚物，其他1-烯烃单体的最大含量小于50 g/kg（质量分数），非烯烃单体的最大官能团含量不超过3 g/kg（质量分数）。 它适用于粉末、颗粒或颗粒形式的、未经着色剂、添加剂、填料等改性或改性的、可供正常使用的材料。 这并不意味着具有相同名称的材料必然具有相同的性能。本文件不提供工程数据、性能数据或加工条件数据，这些数据可能需要用于指定特定应用和/或加工方法的材料。如果需要此类附加性能，则应根据ISO 21302-2规定的试验方法（如适用）进行测定。 为了为特定应用指定热塑性材料或确保可重复加工，数据块5中给出了附加要求（见4.1）。

This document establishes a system of designation for polybutene-1 (PB-1) thermoplastic materials which can be used as the basis for specifications. For the sake of simplicity, the designation polybutene-1 and the abbreviation PB are used in this document. The types of polybutene plastics are differentiated from each other by a classification system based on appropriate levels of the designatory property melt volume-flow rate and on information about basic polymer parameters, intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials. This document is applicable to all butene-1 homopolymers and to copolymers of butene-1 with a maximum content of other 1-olefinic monomers of less than 50 g/kg (mass fraction) and with a content of non-olefinic monomers with functional groups up to a maximum of 3 g/kg (mass fraction). It applies to materials ready for normal use in the form of powder, granules or pellets, 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 can be required to specify a material for a particular application and/or method of processing. If such additional properties are required, they are intended to be determined in accordance with the test methods specified in ISO 21302-2, if suitable. In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements are given in data block 5 (see 4.1).