JB/T 9552.5-1999 Methods for chemical analysis of copper-chromium-zirconium alloys.The determination of chromium by diphenel carbalide photometric method (English Version)
This standard specifies a method for the determination of zirconium content in copper-chromium-zirconium alloys using the xylenol orange photometric method. This standard is applicable to the determination of zirconium content in copper-chromium-zirconium alloys. The measurement range is: 0.050% ~ 0.250%.
JB/T 9552.5-1999 history
1999JB/T 9552.5-1999 Methods for chemical analysis of copper-chromium-zirconium alloys.The determination of chromium by diphenel carbalide photometric method