- Standard No.
- GB/T 5121.5-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
-
GB/T 5121.5-2008
- Replace
-
GB/T 5121.5-1996
GB/T 13293.8-1991
- Scope
- This method specifies the method for the determination of nickel content in copper and copper alloys. Method 1 Zeeman effect electrothermal atomic absorption spectrometry: measurement range: 0.0001% to 0.0010%. Method 2 Flame atomic absorption spectrometry: Measuring range: >0.0010% to 1.50%. Method 3 Na2EDTA titration method: Determination range: >1.50%~45.00%. Method Four dimethylglyoxime spectrophotometry: This method is suitable for the determination of nickel mass fractions up to 2.50% in copper and copper alloys listed in ISO standards. Method five titration method: This method is suitable for the determination of the nickel content of the alloying elements in the copper alloy listed in the ISO international standard.
GB/T 5121.5-2008 history
- 2008 GB/T 5121.5-2008 Methods for chemical analysis of copper and copper alloys.Part 5: Determination of nickel content
- 1996 GB/T 5121.5-1996 Copper and copper alloys--Determination of nickel content
- 1991 GB/T 13293.8-1991 Higher purity copper cathode.Determination of nickel contene.Zeeman effect electrothermal atomic absorption spectrometric method
GB/T 5121.5-2008 Methods for chemical analysis of copper and copper alloys.Part 5: Determination of nickel content has been changed from GB/T 13293.8-1991 Higher purity copper cathode.Determination of nickel contene.Zeeman effect electrothermal atomic absorption spectrometric method.