JB/T 7777.4-1995 Silver tin oxide indium oxide electrical contact material chemical analysis method PAN spectrophotometric determination of zinc content (English Version)
This standard specifies the method for determination of zinc content in silver tin oxide indium oxide electrical contact materials. This standard is applicable to the determination of zinc content in silver tin oxide indium oxide electrical contact materials. Measuring range: 0.05~1.00%.
JB/T 7777.4-1995 history
2008JB/T 7777.4-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material.Part 4:Determination of zinc content
1995JB/T 7777.4-1995 Silver tin oxide indium oxide electrical contact material chemical analysis method PAN spectrophotometric determination of zinc content