ISO 7990-1985 锰矿石和锰精矿 铁的总含量的测定 还原后滴定法和磺基水杨酸分光光度法

标准号：ISO 7990-1985
中文标准名称：锰矿石和锰精矿 铁的总含量的测定 还原后滴定法和磺基水杨酸分光光度法
英文标准名称：Manganese ores and concentrates; Determination of total iron content; Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method
标准类型：D32
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：D32
国际标准分类号：73.060.20
适用范围：Method A is applicable to products having a total iron content from 1 to 25 % (m/m), and method B is applicable to products having a total iron content from 0.2 to 2 % (m/m). ISO 7990 should be read in conjunction with ISO 4297. Specifies principle, reactions (method A only), reagents, apparatus, sampling and samples, procedure and expression of results.