JB/T 7778.1-1995
Methods of chemical analysis of silver tungsten carbide electrical contact materials Determination of silver content by thiocyanate volumetric method (English Version)
- Standard No.
- JB/T 7778.1-1995
- Language
- Chinese, Available in English version
- Release Date
- 1995
- Published By
- Professional Standard - Machinery
- Status
- 2008-07
- Replace By
- JB/T 7778.1-2008
- Latest
- JB/T 7778.1-2008
- Scope
- This standard specifies the method for determining the amount of silver in silver tungsten carbide electrical contact materials. This standard applies to the determination of silver content in silver tungsten carbide electrical contact materials. Measuring range; 80.00% ~ 90.00%.
JB/T 7778.1-1995 history
- 2008 JB/T 7778.1-2008 Test methods for chemical analysis of silver-tungsten carbide electric contact material.Part 1:Determination of silver content
- 1995 JB/T 7778.1-1995 Methods of chemical analysis of silver tungsten carbide electrical contact materials Determination of silver content by thiocyanate volumetric method
