YB/T 178.5-2000 Method for chemical analysis of silicon-aluminium alloy and silicon-barium-aluminium alloy.The molybdeum blue spectrophotometric method for the determination of phosphorus content (English Version)
2012YB/T 178.5-2012 Silicon-aluminium alloy and silicon-barium-aluminium alloy.Determination of phosphorus content.The molybdenum blue spectrophotometric method
2000YB/T 178.5-2000 Method for chemical analysis of silicon-aluminium alloy and silicon-barium-aluminium alloy.The molybdeum blue spectrophotometric method for the determination of phosphorus content