GB/T 6987.30-2001 Aluminium and aluminium alloys--Determination of chromlum content--Diphenyicarbazide spectrophotometry mehtod after extraction (English Version)
This standard specifies the method for the determination of chromium content in aluminum and aluminum alloys. This standard applies to the determination of chromium content in aluminum and aluminum alloys. Measuring range: 0.0001% to 1.00%.
GB/T 6987.30-2001 history
2020GB/T 20975.18-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content
2008GB/T 20975.18-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 18: Determination of chromium content
2001GB/T 6987.30-2001 Aluminium and aluminium alloys--Determination of chromlum content--Diphenyicarbazide spectrophotometry mehtod after extraction
GB/T 6987.30-2001 Aluminium and aluminium alloys--Determination of chromlum content--Diphenyicarbazide spectrophotometry mehtod after extraction was changed to GB/T 20975.18-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 18: Determination of chromium content.