GB/T 13747.21-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 21:Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method (English Version)
2017GB/T 13747.21-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 21:Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method
1992GB/T 13747.21-1992 Zirconium and zirconium alloys--Determination of hydrogen content--Vacuum heating gas chromatographic method