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See Chinese contents: GB/T 20975.28-2019 GB/T 20975.28-2019: Methods for chemical analysis of aluminium and aluminium alloys -- Part 28: Determination of cobalt content -- Flame atomic absorption spectrometry
This Part of GB/T 20975 specifies the method of flame atomic absorption spectrometry to determine cobalt content in aluminium and aluminium alloys. This Part is applicable to determination of cobalt content in aluminum and aluminum alloy, aluminum-cobalt intermediate alloy. Determination range: 0.005%~12.0%.
