GB/T 20975.20-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 20:Determination of gallium content.Butyrhodamine B spectrophotometric method (English Version)
This part specifies the method for the determination of gallium content in aluminum and aluminum alloys. This section applies to the determination of gallium content in aluminum and aluminum alloys. Measuring range: 0.005﹪~0.050﹪.
GB/T 20975.20-2008 history
2020GB/T 20975.20-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 20:Determination of gallium content—Butyrhodamine B spectrophotometric method
2008GB/T 20975.20-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 20:Determination of gallium content.Butyrhodamine B spectrophotometric method
2001GB/T 6987.20-2001 Aluminium and aluminium alloys--Determination of gallium content--Butyrhodamine B spectrophotometric method
GB/T 20975.20-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 20:Determination of gallium content.Butyrhodamine B spectrophotometric method has been changed from GB/T 6987.20-2001 Aluminium and aluminium alloys--Determination of gallium content--Butyrhodamine B spectrophotometric method.