This part of GB/T 20975 specifies the determination of lock content in aluminum and aluminum alloys by flame atomic absorption spectrometry and Na*EDTA titration. This section applies to the arbitration determination of pot content in aluminum and lead alloys. The determination range of flame atomic absorption spectrometry: 0.010%% to 0.60%; the determination range of NasEDTA titration method: 3.50% to 12.00%.
GB/T 20975.6-2020 Referenced Document
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