GB/T 4374.1-1984 Methods for chemical analysis of magnesium powders and aluminum-magnesium alloy powders--The neocuproine-extraction photometric method for the determination of copper content (English Version)
This standard applies to the determination of the amount of copper in aluminum-magnesium alloy powder. Measuring range: 0.0050~0.050%.
GB/T 4374.1-1984 history
2013GB/T 13748.12-2013 Chemical analysis methods of magnesium and magnesium alloys.Part 12:Determination of copper content
2005GB/T 13748.12-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of low copper content.2,9-Dimethyl-1,10-phenanthroline spectrophotometric method
1984GB/T 4374.1-1984 Methods for chemical analysis of magnesium powders and aluminum-magnesium alloy powders--The neocuproine-extraction photometric method for the determination of copper content
GB/T 4374.1-1984 Methods for chemical analysis of magnesium powders and aluminum-magnesium alloy powders--The neocuproine-extraction photometric method for the determination of copper content was changed to GB/T 13748.12-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of low copper content.2,9-Dimethyl-1,10-phenanthroline spectrophotometric method.