General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 15057.6-1994
Scope
This standard specifies the spectrophotometric method for the determination of iron content with o-phenanthroline. This standard is applicable to the determination of iron content in limestone products for chemical industry, and the determination range (calculated as ferric oxide) is 0.05% to 1%.
GB/T 15057.6-1994 history
1994GB/T 15057.6-1994 Limestone for chemical industry- Determination of iron content- Phenanthroline spectrophotometric method