塑料 - 塑化聚（氯乙烯）（pvc-p）成型和挤出材料 - 第1部分:指定系统和规格

[中文适用范围]： 1.1 本文件建立了增塑 PVC 热塑性材料的命名系统，可作为规范的基础。1.2 PVC-U 塑料的类型通过基于适当级别的指定性能的分类系统来区分：a) 肖氏硬度，b) 密度，c) 300 MPa 下的扭转刚度温度，以及有关物理形态的信息、预期用途和/或加工方法、重要特性、添加剂、着色剂。1.3 本文件适用于所有含有质量百分比至少为 50% 的氯乙烯的均聚物和共聚物的增塑组合物。 它还适用于含有氯化聚(氯乙烯)的增塑组合物以及含有一种或多种上述聚合物的共混物的增塑组合物，条件是这些聚合物的总量至少占该聚合物的50％的质量百分比。 组合物的聚合物含量。 本文件适用于正常使用的粉末（干混物）、颗粒或粒料形式的材料，以及未经改性或经着色剂、添加剂、填料等改性的材料。 它不适用于泡沫塑料或糊状组合物（增塑溶胶） ）。1.4 本文件无意暗示具有相同名称的材料具有相同的性能。 它不提供工程数据、性能数据或加工条件数据，这些数据可能需要为特定应用和/或加工方法指定材料。 如果需要额外的性能，如果合适的话，可以使用 1.5 规定的测试方法来确定。 为了指定特定应用的热塑性材料或确保可重复的加工，可以在数据块 5 中给出附加要求（见 4.1）。 [外文原描述]： 1.1 This document establishes a system of designation for plasticized PVC thermoplastic material which can be used as the basis for specifications. 1.2 The types of PVC-U plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties a) Shore hardness, b) density, c) torsional-stiffness temperature at 300 MPa, and on information about physical form, intended application and/or method of processing, important properties, additives, colorants. 1.3 This document is applicable to all plasticized compositions of homopolymers and copolymers that contain at least a mass percentage of 50 % of vinyl chloride. It is also applicable to plasticized compositions containing chlorinated poly (vinyl chloride) and to plasticized compositions containing blends of one or more of the above-mentioned polymers, provided that the total amount of these polymers represents at least a mass percentage of 50 % of the polymer content of the composition. This document applies to materials ready for normal use in the form of powder (dry blends), granules or pellets and to materials unmodified or modified by colorants, additives, fillers, etc. It does not apply to cellular plastics or to paste compositions (plastisols). 1.4 This document does not intend to imply that materials having the same designation give the same performance. It does not provide engineering data, performance data or data on processing conditions which might be required to specify a material for a particular application and/or method of processing. If additional properties are required, they are, if suitable, determined using the test methods specified in ISO 24023-2. 1.5 In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements can be given in data block 5 (see 4.1).