GB/T 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method (English Version)
This standard specifies the method for the determination of the total content of cerium group rare earth elements in aluminum and aluminum alloys. This standard applies 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 6987.24-2001 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 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method
GB/T 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method was changed to GB/T 20975.24-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 24: Determination of total rare earth contents.