GB/T 6730.45-2006 in English

《GB/T 6730.45-2006铁矿石 砷含量的测定 砷化氢分离-砷钼蓝分光光度法》由TC317（全国铁矿石与直接还原铁标准化技术委员会）归口，主管部门为中国钢铁工业协会。
本标准规定了用砷化氢分离-砷钼蓝分光光度法测定铁矿石中砷含量的方法。本部分适用于天然铁矿石铁精矿和块矿，包括烧结产品中砷含量的测定。测定范围(质量分数)：0.003%～0.50%。

Scope

Warning: Personnel using this part of GB/T 6730 should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part of GB/T 6730 specifies the method for the determination of arsenic content by arsine hydrogen separation-arsenic molybdenum blue spectrophotometry. This section applies to natural iron ore, iron concentrate and lump ore, including the determination of arsenic content in sintered products. Measuring range (mass fraction): 0.003% to 0.50%.