GB/T 223.31-1994 Methods for chemical analysis of iron, steel and alloy.The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content
This standard specifies the determination of arsenic by distillation separation-molybdenum blue spectrophotometry. This standard is applicable to the determination of arsenic content in pure iron, carbon steel, alloy steel, precision alloy and superalloy. Measuring range: 0.0005% to 0.10%.
GB/T 223.31-1994 history
2008GB/T 223.31-2008 Iron,steel and alloy.Determination of arsenic content.Distillation-molybdenum blue spectrophotometric method
1994GB/T 223.31-1994 Methods for chemical analysis of iron, steel and alloy.The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content
1984GB 223.31-1984 Methods for chemical analysis of iron,steel and alloy--The distillation-molybdenum blue photometric method for the determination of arsenic content