ISO 29988-2:2018 塑料 聚甲醛（POM）成型和挤压材料 第2部分：试验试样的制备和性能的测定

标准编号：ISO 29988-2:2018

中文名称：塑料 聚甲醛（POM）成型和挤压材料 第2部分：试验试样的制备和性能的测定

英文名称：Plastics — Polyoxymethylene (POM) moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties

发布日期：2018-04

标准范围

ISO 29988-2:2018规定了试样的制备方法，以及用于测定聚甲醛（POM）模塑和挤压材料性能的试验方法。规定了处理试验材料的要求，以及成型前试验材料和试验前试样的调节要求。给出了制备试样的程序和条件，以及测量制备试样所用材料性能的程序。列出了表征POM模塑和挤出材料的合适和必要的性能和试验方法。这些特性是从通用测试方法中选择的。本文件还包括广泛使用的或对这些模塑和挤压材料具有特殊意义的其他试验方法，以及设计性能:熔体流动速率和拉伸模量。为了获得可重复和可比较的试验结果，拟采用本文件中规定的制备和调节方法、试样尺寸和试验程序。确定的值不一定与使用不同尺寸的试样或使用不同程序制备的试样获得的值相同。

ISO 29988-2:2018 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polyoxymethlene (POM) moulding and extrusion materials.

Requirements for handling test materials and for conditioning both the test materials before moulding and the specimens before testing are specified. Procedures and conditions for the preparation of test specimens and procedures for measuring properties of the materials from which these specimens are made are given.

Properties and test methods which are suitable and necessary to characterize POM moulding and extrusion materials are listed. The properties have been selected from the general test methods. Other test methods in wide use for, or of particular significance to, these moulding and extrusion materials are also included in this document, as are the designatory properties: melt flow rate and tensile modulus.

In order to obtain reproducible and comparable test results, it is intended to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified in this document. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.

标准预览图