GB/T 6730.19-1986 Methods for chemical analysis of iron ores--The bismuth phosphomolybdate blue photometric method for the determination of phosphorus content (English Version)
This standard applies to the determination of phosphorus in iron ore, iron concentrate, sinter and pellets. Measuring range: 0.01 to 0.50%.
GB/T 6730.19-1986 history
2016GB/T 6730.19-2016 Iron ores—Determination of phosphorus content—Bismuth phosphomolybdate blue spectrophotometric method
1986GB/T 6730.19-1986 Methods for chemical analysis of iron ores--The bismuth phosphomolybdate blue photometric method for the determination of phosphorus content