This standard specifies the determination of iron oxide content by sulfosalicylic acid spectrophotometry. This standard is applicable to the determination of iron oxide content in alunite ore products. The measurement range is 0.1%~10%.
HG/T 2957.10-2004 history
2004HG/T 2957.10-2004 Determination of total iron content in alunite ore-sulfosalicylic acid spectrophotometric method