- Standard No.
- GB/T 5121.2-2008
- 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 5121.2-2008
- Replace
-
GB/T 13293.6-1991
GB/T 5121.2-1996
- Scope
- This standard specifies the method for the determination of phosphorus content in copper and copper alloys. Method 1 is applicable to the determination of phosphorus content in copper and copper alloys. Measuring range: 0.00005% to 0.0005%. Method 2 is applicable to the determination of phosphorus content in copper and copper alloys other than tin bronze. Measuring range: >0.0002%~0.12%. Method 3 is applicable to the determination of phosphorus content in tin bronze. Measuring range: >0.010%~0.50%. Method 4 is applicable to the determination of phosphorus content with a mass fraction of 0.000 5% to 0.5% in copper and copper alloys listed in ISO international standards.
GB/T 5121.2-2008 history
- 2008 GB/T 5121.2-2008 Methods for chemical analysis of copper and copper alloys.Part 2:Determination of phosphorus content
- 1996 GB/T 5121.2-1996 Copper and copper alloys--Determination of phosphorus content
- 1991 GB/T 13293.6-1991 Higher purity copper cathode.Determination of phosphorus content.Heteropoly phosphato-vanadato-molybdicacid-crystal violet spectrophotometric method
GB/T 5121.2-2008 Methods for chemical analysis of copper and copper alloys.Part 2:Determination of phosphorus content has been changed from GB/T 13293.6-1991 Higher purity copper cathode.Determination of phosphorus content.Heteropoly phosphato-vanadato-molybdicacid-crystal violet spectrophotometric method.