This standard specifies the method for the determination of silicon content in aluminum and aluminum alloys. This standard applies to the determination of silicon content in aluminum and aluminum alloys. Measuring range: 0.001% to 0.40%. This standard does not apply to aluminum alloys containing tin.
GB/T 6987.6-2001 history
2020GB/T 20975.5-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 5:Determination of silicon content
2008GB/T 20975.5-2008 Methods for chemical analysis of aluminium and aluminium alloys .Part 5:Determination of silicon content
2001GB/T 6987.6-2001 Aluminium and aluminium alloys--Determination of silicon content--Molybdenum blue spectrophotometric method
GB/T 6987.6-2001 Aluminium and aluminium alloys--Determination of silicon content--Molybdenum blue spectrophotometric method was changed to GB/T 20975.5-2008 Methods for chemical analysis of aluminium and aluminium alloys .Part 5:Determination of silicon content.