GB/T 20975.24-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 24: Determination of total rare earth contents (English Version)
This method specifies the determination method for the total content of cerium group rare earth elements in aluminum and aluminum alloys. This method is applicable to the determination of the total content of cerium group rare earth elements in aluminum and aluminum alloys. Measuring range: 0.0010% to 1.50%.
GB/T 20975.24-2008 history
2020GB/T 20975.24-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 24:Determination of total rare earth content
2008GB/T 20975.24-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 24: Determination of total rare earth contents
2001GB/T 6987.32-2001 Aluminium and aluminium alloys--Determination of total rare earth contents--Rare earth oxalate gravimetric method
GB/T 20975.24-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 24: Determination of total rare earth contents has been changed from GB/T 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method.
GB/T 20975.24-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 24: Determination of total rare earth contents has been changed from GB/T 6987.32-2001 Aluminium and aluminium alloys--Determination of total rare earth contents--Rare earth oxalate gravimetric method.