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See Chinese contents: GB/T 3058-2019 GB/T 3058-2019: Determination of arsenic in coal
This standard specifies the method summary, reagents and materials, instruments and equipment, samples, test procedures, calculation and presentation of results, the precision of the method for the determination of arsenic in coal by arsenic molybdenum blue spectrophotometry and hydride generation-atomic absorption method. Arsenic molybdenum blue spectrophotometry is the arbitration method.
