涂装油漆和有关产品前钢材预处理 喷射清理用金属磨料的试验方法 第3部分:硬度测定

[中文适用范围]： 本文件规定了测定金属喷砂清理磨料维氏硬度的试验方法。 不建议使用此方法测试小于 0.3 mm 的颗粒尺寸。 注意 精确测试 0.3 毫米以下的颗粒（S040/G050 级）是极其困难的。 这是 ISO 11125 中涉及喷砂清理金属磨料取样和测试的众多部分之一。 金属磨料的类型及其要求包含在 ISO 11124 金属喷砂清理磨料的各个部分中。 附录 A 中给出了两个系列所有部分的信息。 [外文原描述]： This document specifies a test method for the determination of the Vickers hardness of metallic blast-cleaning abrasives. This method is not recommended for the testing of particle sizes below 0,3 mm. NOTE Accurate testing of particles below 0,3 mm (grades S040/G050) is extremely difficult. This is one of a number of parts of ISO 11125 dealing with the sampling and testing of metallic abrasives for blast-cleaning. The types of metallic abrasive and requirements on each are contained in the various parts of ISO 11124. The ISO 11124 and ISO 11125 series have been drafted as a coherent set of International Standards on metallic blast-cleaning abrasives. Information on all parts of both series is given in Annex A.