标准摘要
[中文适用范围]： ISO 12989 的这一部分允许通过热重分析 (TGA) 测定铝还原行业中使用的成型碳电极的空气反应性和粉尘。 有许多类型的设备可供使用，具有各种热条件、样品尺寸能力、结构材料以及用于确定质量损失和随后的反应速率的程序。 该测试方法标准化了样品尺寸、反应时间和温度的变量，并提供了标准化暴露表面上的气体速度的数学方法，使得在不同类型的设备上获得的结果是相关的。 [外文原描述]： ISO 12989-2:2004 covers the thermogravimetric analysis (TGA) of air reactivities and dusting of shaped carbon electrodes used in the aluminium-production industry. Many types of apparatus are available, with various thermal conditions, sample-size capability, materials of construction and procedures for determining the mass loss and subsequent rate of reaction. This test method sets standard reaction times and temperatures, and provides a mathematical method to normalize the gas velocity over the exposed surfaces, such that results obtained on different types of apparatus are correlatable.
英文名称Carbonaceous materials used in the production of aluminium — Baked anodes and sidewall blocks — Determination of the reactivity to air — Part 2: Thermogravimetric method