GB/T 13747.5-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 5:Determination of aluminium content—Chronic azurol-S-tetradrcylpyridine chloride spectrophotometry (English Version)
2019GB/T 13747.5-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 5:Determination of aluminium content—Chronic azurol-S-tetradrcylpyridine chloride spectrophotometry
1992GB/T 13747.5-1992 Zirconium and zirconium alloys--Determination of aluminium content--Chrome azurol S spectrophotometric method