塑料 - 乙烯/乙烯醇（EVOH）共聚物成型和挤出材料 - 第2部分:试样的制备和性能的测定

[中文适用范围]： 本文件规定了测试样品的制备方法以及用于确定乙烯/乙烯醇（EVOH）共聚物模塑和挤出材料性能的测试方法。 它给出了处理测试材料以及成型前测试材料和测试前样本的调节要求。 本文件描述了制备测试样品的程序和条件，以及测量制作这些样品的材料性能的程序。 本文件列出了表征 EVOH 模塑和挤出材料的合适且必要的性能和测试方法。 这些特性选自 ISO 10350-1 中的一般测试方法。 本文件还包括广泛使用或对这些模塑和挤出材料特别重要的其他测试方法，就像 ISO 21309-1 中规定的熔体质量流动速率指定属性一样。 为了获得可重复和可比较的测试结果，打算使用本文指定的样本制备和调节方法、样本尺寸和测试程序。 测定的值不一定与使用不同尺寸的样本获得的值或使用不同程序制备的值相同。 [外文原描述]： This document specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials. It gives requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing. This document describes procedures and conditions for the preparation of test specimens, and procedures for measuring properties of the materials from which these specimens are made. Properties and test methods which are suitable and necessary to characterize EVOH moulding and extrusion materials are listed in this document. The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this document, as is the melt mass-flow rate designatory property specified in ISO 21309-1. In order to obtain reproducible and comparable test results, it is intended to use the methods of specimen preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.