General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 6730.57-2004
Scope
This standard specifies the determination of chromium content in iron ore by flame atomic absorption spectrometry. This method is applicable to natural iron ore, iron concentrate and sintered ore, including the determination of chromium content in sintered products. Measuring range (mass fraction): 0.003% to 0.100%.
GB/T 6730.57-2004 history
2004GB/T 6730.57-2004 Iron ores-Determination of chromium content-Flame atomic absorption spectrometric method