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See Chinese contents: GB/T 22639-2022 GB/T 22639-2022: Test method of exfoliation corrosion for aluminium alloy products
This document specifies the immersion or alternate immersion exfoliation corrosion test methods for 2×××, 5×××, 6×××, and 7××× series deformed aluminium alloy products. This document is applicable to the exfoliation corrosion test of 2×××, 5×××, 6×××, 7××× series aluminium alloy plates, strips, tubes, bars, profiles, forgings and other deformed aluminium alloy products.
