ISO 2596:2006 铁矿石 分析试样中吸湿的测定 重量法、卡尔费舍尔（Karl fisher）法和失重法

标准编号：ISO 2596:2006

中文名称：铁矿石 分析试样中吸湿的测定 重量法、卡尔费舍尔（Karl fisher）法和失重法

英文名称：Iron ores — Determination of hygroscopic moisture in analytical samples — Gravimetric, Karl Fischer and mass-loss methods

发布日期：2006-05

标准范围

ISO 2496:2006规定了以下四种测定试验样品吸湿水分含量的试验方法:方法1——重量法；方法2——卡尔费休容量法；方法3——卡尔费休库仑法；方法4——质量损失法。这些方法中的任何一种都适用于以下矿石类型中以干燥样品为基础计算化学成分的分析值的任何情况。含金属铁（直接还原铁）的加工矿石。硫含量大于0.2%（质量分数）的天然或加工矿石。结合水大于2.5%（质量分数）的天然或加工矿石。这些方法中的任何一种都适用于0.05%(质量分数)至4.5%(质量分数)的吸湿性水分的浓度范围。

ISO 2496:2006 specifies the following four test methods for the determination of the hygroscopic moisture content of test samples:Method 1 -- Gravimetric method;Method 2 -- Karl Fischer volumetric method;Method 3 -- Karl Fischer coulometric method;Method 4 -- Mass-loss method.Any of these methods is applicable wherever the analytical value of a chemical constituent is to be calculated to a dried sample basis in the following ore types.

1. Processed ores containing metallic iron (direct reduced iron).
2. Natural or processed ores in which the sulfur content is greater than 0,2 % (mass fraction).
3. Natural or processed ores in which the combined water is greater than 2,5 % (mass fraction).

Any of these methods is applicable to a concentration range of 0,05 % (mass fraction) to 4,5 % (mass fraction) hygroscopic moisture.

标准预览图