JB/T 7775.2-1995
Copper tungsten carbide tungsten carbide vacuum contact material chemical analysis method complexometric titration determination of copper content (English Version)
- Standard No.
- JB/T 7775.2-1995
- Language
- Chinese, Available in English version
- Release Date
- 1995
- Published By
- Professional Standard - Machinery
- Status
- 2008-09
- Replace By
- JB/T 7775.1-2008
- JB/T 7775.2-2008
- Latest
- JB/T 7775.1-2008
- JB/T 7775.2-2008
- Scope
- This standard specifies the method for determination of copper content in copper-tungsten carbide vacuum contact materials. This standard is applicable to the determination and measurement range of copper content in copper-tungsten carbide vacuum contact materials. 15.00%～55.00%.
JB/T 7775.2-1995 history
- 2008 JB/T 7775.1-2008 Test methods for chemical analysis of copper-tungsten-tungsten carbide electric contact material. Part 1: Determination of copper content
- 1995 JB/T 7775.2-1995 Copper tungsten carbide tungsten carbide vacuum contact material chemical analysis method complexometric titration determination of copper content
JB/T 7775.2-1995 Copper tungsten carbide tungsten carbide vacuum contact material chemical analysis method complexometric titration determination of copper content was changed to JB/T 7775.1-2008 Test methods for chemical analysis of copper-tungsten-tungsten carbide electric contact material. Part 1: Determination of copper content.
