GB/T 13747.12-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 12:Determination of silicon content—Molybdenum blue spectrophotometry (English Version)
2019GB/T 13747.12-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 12:Determination of silicon content—Molybdenum blue spectrophotometry
1992GB/T 13747.12-1992 Zirconium and zirconium alloys--Determination of silicon content--Molybdenum blue spectrophotometric method