This standard specifies the method for the determination of nickel content in silver tin oxide indium oxide electrical contact materials. This standard applies to the determination of nickel content in silver tin oxide indium oxide electrical contact materials. Measuring range: 0.03% ~ 1.00%.
JB/T 7777.3-1995 history
2008JB/T 7777.3-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material.Part 3:Determination of nickel content
1995JB/T 7777.3-1995 Silver tin oxide indium oxide electrical contact materials chemical analysis method dimethylglyoxime spectrophotometric determination of nickel content