JB/T 7774.4-1995
Silver zinc oxide electrical contact material chemical analysis method flame atomic absorption spectrometry determination of nickel content (English Version)
- Standard No.
- JB/T 7774.4-1995
- Language
- Chinese, Available in English version
- Release Date
- 1995
- Published By
- Professional Standard - Machinery
- Status
- 2008-07
- Replace By
- JB/T 7774.4-2008
- Latest
- JB/T 7774.4-2008
- Scope
- This standard specifies the method for the determination of nickel content in silver-zinc oxide electrical contact materials. This standard applies to the determination of nickel content in silver-zinc oxide electrical contact materials. Measuring range: 0.05% ~ 0.30%.
JB/T 7774.4-1995 history
- 2008 JB/T 7774.4-2008 Test methods for chemical analysis of silver-zinc oxide electric contact material.Part 4:Determination of nickel content
- 1995 JB/T 7774.4-1995 Silver zinc oxide electrical contact material chemical analysis method flame atomic absorption spectrometry determination of nickel content
