This part of GB/T 22638 specifies the water brushing test method for aluminum foil. This section applies to the inspection of the degreasing condition of the aluminum foil surface.
GB/T 22638.5-2008 history
2016GB/T 22638.5-2016 Test methods for aluminium and aluminium alloy foils—Part 5:Determination of wettability
2008GB/T 22638.5-2008 Test methods for aluminium and aluminium alloy foils.Part5:Determination of wettability by brushing