标准摘要
[中文适用范围]: 本标准规定了天然铁矿石、铁精矿和团矿(包括烧结产品)预干燥测试样品的制备方法,这些样品用于测定干基成分的分析值。 本方法不适用于以下类型的矿石: a) 含金属铁(直接还原铁)的加工矿石; b) 硫质量分数高于 0.2% 的天然矿石或加工矿石; c) 结合水含量高于 2.5%(质量)的天然矿石或加工矿石。 注 1:或者,烧失量可以根据合并水含量的估计值来确定。 如果该方法不适用,则使用 ISO 2596:1994,铁矿石 — 分析样品中吸湿水分的测定 — 重量法和卡尔费休法。 注 2:实验室可以选择对所有样品使用 ISO 2596 来确定干样品质量。 [外文原描述]: ISO 7764:2006 specifies a method for the preparation of predried test samples of natural iron ores, and iron ore concentrates and agglomerates, including sinter products, which are to be used for the determination of analytical values of constituents on a dry basis. The method is not applicable to the following types of ores: processed ores containing metallic iron (direct-reduced iron); natural or processed ores in which the mass fraction of sulfur is higher than 0,2 %; natural or processed ores in which the content of combined water is higher than 2,5 % by mass.
英文名称Iron ores — Preparation of predried test samples for chemical analysis