GB/T 4701.7-2009 Ferrotitanium-Determination of phosphorus content-Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method (English Version)
Warning: Personnel using this part of GB/T 2912 should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and to ensure the conditions stipulated by the relevant national laws. This part specifies the determination of phosphorus content in ferro-titanium by bismuth phosphomolybdenum blue spectrophotometry and molybdenum blue spectrophotometry. This section applies to the determination of phosphorus content in ferro-titanium. Measuring range (mass fraction): 0.010%~0.150%.
GB/T 4701.7-2009 Referenced Document
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*, 2015-09-11 Update
GB/T 4701.7-2009 history
2009GB/T 4701.7-2009 Ferrotitanium-Determination of phosphorus content-Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
1985GB/T 4701.7-1985 Methods for chemical analysis of ferrotitanium--The molybdenum blue spectrophotometric method for the determination of phosphorus content