YS/T 1605.9-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 9:Determination of phosphorus content— Molybdenum blue spectrophotometry (English Version)
2023YS/T 1605.9-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 9:Determination of phosphorus content— Molybdenum blue spectrophotometry