General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 15057.9-1994
Scope
This standard specifies the molybdenum blue spectrophotometric method for the determination of phosphorus content. This standard is applicable to the determination of phosphorus content in limestone products for chemical industry, and the determination range is 0.001% to 0.2%.
GB/T 15057.9-1994 history
1994GB/T 15057.9-1994 Limestone for chemical industry- Determination of phosphorus content- Molybdenum blue spectrophotometric method