警告——本文件可能涉及危险材料、操作和设备。这 本文件并不是为了解决与其使用相关的所有安全问题。这就是 本文件使用者建立适当健康和安全实践的责任 并在使用前确定监管限制的适用性。本文件规定了测定总铁含量的电位滴定法 在铁矿石中，用氯化锡（II）还原铁（III）后，用重铬酸钾作为滴定剂 以及氯化钛(III)。然后，多余的还原剂被重铬酸钾溶液氧化。 该方法适用于质量分数在29.04%和质量分数之间的总铁含量 在天然铁矿石、铁精矿和烧结矿（包括烧结矿产品）中的含量为72.02%。 交叉引用:ISO 3082ISO 1042ISO 7764ISO 648ISO 2596ISO指南35ISO 5725-2购买本文件时提供的所有现行修订版均包含在购买本文件中。

WARNING — This document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate health and safety practices and determine the applicability of regulatory limitations prior to use.This document specifies a potentiometric titration method for the determination of total iron content of iron ores, using potassium dichromate as titrant after reduction of the iron(III) by tin(II) chloride and titanium(III) chloride. The excess reductant is then oxidized by potassium dichromate solution. This method is applicable to total iron contents between a mass fraction of 29,04 % and a mass fraction of 72,02 % in natural iron ores and iron ore concentrates and agglomerates including sinter products.Cross References:ISO 3082ISO 1042ISO 7764ISO 648ISO 2596ISO Guide 35ISO 5725-2All current amendments available at time of purchase are included with the purchase of this document.