This part of GB/T 20975 specifies the method for the determination of arsenic content in aluminum and aluminum alloys. This part applies to the determination of arsenic content in aluminum and aluminum alloys. All coexisting elements in aluminum and aluminum alloys do not interfere with the determination of arsenic. The measurement range of method 1 is: >0.000 5%~0.020%; the measurement range of method 2 is: 0.000 002%~0.000 5%.
GB/T 20975.2-2018 history
2018GB/T 20975.2-2018 Methods for chemical analysis of aluminium and aluminium alloys.Part 2:Determination of arsenic content
2007GB/T 20975.2-2007 Chemical analysis methods of aluminium and aluminium alloys Part 2: Determination of arsenic content Molybdenum blue spectrophotometric method