AS 2039.2.4:1978 鋁及鋁合金陽極氧化涂層的測試方法 第2.4部分:密封性能測試 陽極氧化涂層的酸化亞硫酸鈉(Kape)測試
Methods for testing anodic oxidation coatings on aluminium and aluminium alloys, Part 2.4: Sealing property tests - Acidified sodium sulphite (Kape) test of anodic oxidation coatings