JB/T 6237.3-1992 Silver powder chemical analysis method for electrical contacts o-phenanthroline spectrophotometric determination of iron content (English Version)
This standard specifies the method for determination of iron content in silver powder for electrical contacts. This standard applies to the determination of iron content in silver powder for electrical contacts. Measuring range: O.001% ~ O.020%.
JB/T 6237.3-1992 history
2008JB/T 6237.3-2008 Test methods for chemical analysis of silver powder for electric contact material. Part 3: Determination of iron content
1992JB/T 6237.3-1992 Silver powder chemical analysis method for electrical contacts o-phenanthroline spectrophotometric determination of iron content