JB/T 7520.1-1994
Chemical analysis method for phosphorus copper brazing filler metal Determination of copper content with EDTA volumetric method (English Version)
- Standard No.
- JB/T 7520.1-1994
- Language
- Chinese, Available in English version
- Release Date
- 1994
- Published By
- Professional Standard - Machinery
- Status
- 2018-04
- Replace By
- JB/T 7520.1-2017
- Latest
- JB/T 7520.1-2017
- Scope
- This standard specifies the determination of copper content using the EDTA volumetric method. This standard is applicable to the determination of copper content in phosphorus copper solder, with a measurement range of 80.00% to 95.00%.
JB/T 7520.1-1994 history
- 2017 JB/T 7520.1-2017 Methods for chemical analysis of copper-based solders Part 1: Determination of copper content
- 1994 JB/T 7520.1-1994 Chemical analysis method for phosphorus copper brazing filler metal Determination of copper content with EDTA volumetric method
