GB/T 12689.7-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of magnesium content-The flame atomic absorption spectrometric method (English Version)
This part specifies the method for the determination of magnesium content in zinc and zinc alloys. This section applies to the determination of magnesium content in zinc and zinc alloys. Measuring range: 0.010% to 0.20%.
GB/T 12689.7-2004 history
2011GB/T 12689.7-2010 Methods for chemical analysis of zinc and zinc alloys—Part 7:Determination of magnesium content—Flame atomic absorption spectrometric method
2004GB/T 12689.7-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of magnesium content-The flame atomic absorption spectrometric method
1990GB/T 12689.7-1990 Zinc and zinc alloys--Determination of magnesium content--Flame atomic absorption spectrometric method