标准摘要
[中文适用范围]： 本文件描述了测定耐火砂浆加热（干燥和/或烧制）时尺寸永久变化的方法。 [外文原描述]： This document describes the method for determining the permanent change in dimensions on heating (drying and/or firing) of refractory mortars.
英文名称Refractory mortars — Part 7: Determination of permanent change in dimensions on heating