耐火材料. 颗粒体积密度(颗粒比重)的测定

[中文适用范围]： 本文件规定了粒度大于2mm的粒状耐火材料堆积密度（颗粒密度）的三种测定方法： ——方法1：真空水银法； ——方法2：阻滞吸水法； ——方法 3：根据 ISO 5017，带旋转干燥器选件的真空方法。 方法 1 旨在作为参考方法。 注：根据测试材料的性质，三种方法可以给出不同的结果。 因此，任何堆积密度值的表述都可以附有所使用或将要使用的方法的指示，以防出现争议。 相同的方法可用于测定样品体积、选择和制备样品、计算堆积密度以及提交测试报告。 [外文原描述]： This document specifies three methods for the determination of the bulk density of granular refractory materials (grain density) having a grain size larger than 2 mm: — Method 1: mercury method with vacuum; — Method 2: arrested water absorption method; — Method 3: vacuum method with spin dryer option according to ISO 5017. Method 1 is intended as the reference method. NOTE Depending on the nature of the material tested, the three methods can give different results. Any statement of the value of a bulk density can therefore be accompanied by an indication of the method used or to be used in case of dispute. The same method can be used for the determination of the volume of the sample, for selecting and preparing the sample, for calculating the bulk density and for presenting the test report.