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See Chinese contents: GB/T 35069-2018 GB/T 35069-2018: Coke -- Determination of phosphorus content -- Reduced molybdophosphate spectrophotometric method
This Standard specifies the determination of phosphorus content through reduced Molybdophosphate spectrophotometric method. This Standard is applicable to the determination of phosphorus content in coke (metallurgical coke, foundry coke, ferroalloy coke, gasification coke and semi-coke, etc.). Coal for coking can take this as a reference. The range of determination (mass fraction): 0.0050% ~ 0.10%.
