GB/T 8005.2 Terms of aluminium and aluminium alloys—Part 2:Chemical analysis
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 20975.6-2020 history
2020GB/T 20975.6-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 6: Determination of cadmium content
2008GB/T 20975.6-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 6:Determination of cadmium content.Flame atomic absorption spectrometric method
2001GB/T 6987.25-2001 Aluminium and aluminium alloys--Determination of cadmium content--Flame atomic absorption spectrometric method