GB/T 13748.4-2013 Chemical analysis methods of magnesium and magnesium alloys.Part 4:Determination of manganese content.Periodate spectrophotometric method (English Version)
This part of GB/T 13748 specifies the method for the determination of manganese content in magnesium and magnesium alloys. Method 1 of this part is applicable to the determination of manganese content in magnesium alloys (including Zr, RE, Th, Ag). Measuring range: 0.050%~2.70%. Method 2 of this part is applicable to the determination of manganese content in magnesium and magnesium alloys (excluding Zr, RE, Th, Ag). Measuring range: 0.010%~0.80%. Method 3 of this part is applicable to the determination of manganese content in primary magnesium ingots. Measuring range: 0.0005%~0.010%.
GB/T 13748.4-2013 history
2013GB/T 13748.8-2013 Chemical analysis methods of magnesium and magnesium alloys.Part 8:Determination of rare earth content.Gravimetric method
2005GB/T 13748.8-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of Rare earth content.Gravimetric method
1992GB/T 13748.4-1992 Magnesium and its alloys--Determination of cerium content--Tribromoarsenazo spectrophotometric method