JB/T 7776.6-1995 Method for chemical analysis of silver cadmium oxide electrical contact materials Determination of bismuth content by thiourea spectrophotometry (English Version)
This standard specifies the method for determining the amount of bismuth in silver cadmium oxide electrical contact materials. This standard applies to the determination of bismuth content in silver cadmium oxide electrical contact materials. Measuring range: 0.05% ~ 0.50%.
JB/T 7776.6-1995 history
2008JB/T 7776.5-2008 Test method for chemical analysis of silver-cadmium oxide electric contact material. Part 5: Determination of bismuth content
1995JB/T 7776.6-1995 Method for chemical analysis of silver cadmium oxide electrical contact materials Determination of bismuth content by thiourea spectrophotometry
JB/T 7776.6-1995 Method for chemical analysis of silver cadmium oxide electrical contact materials Determination of bismuth content by thiourea spectrophotometry was changed to JB/T 7776.5-2008 Test method for chemical analysis of silver-cadmium oxide electric contact material. Part 5: Determination of bismuth content.