This standard specifies the method for evaluating the sealing quality of aluminum and aluminum alloy anodic oxide film after its mass loss after being etched in phosphorus-chromic acid solution. This standard specifies the arbitration method for evaluating the sealing quality of aluminum and aluminum alloy anodized films. This standard applies to the anodic oxide film exposed to the atmosphere, which plays a protective role in corrosive media and focuses on anti-pollution. This standard does not apply to the anodic oxide film treated by the following processes: a. Hard anodic oxide film that is usually not sealed; b. Anodic oxide film that is only sealed in dichromate solution; c. Hydrophobic treated anodized film. This method is a destructive test.
GB/T 14952.1-1994 history
2017GB/T 8753.1-2017 Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxidation coatings—Part 1：Measurement of the loss of mass after immersion in acid solution(s)
2005GB/T 8753.1-2005 Anodizing of aluminium and aluminium alloys-Assessment of quality of sealed anodic oxide coatings Part 1:Phosphoric acid/chromic acid test without nitric acid predip
1994GB/T 14952.1-1994 Anodizing of aluminium and its alloys.Assessment of quality of sealed anodic oxide coatings
GB/T 14952.1-1994 Anodizing of aluminium and its alloys.Assessment of quality of sealed anodic oxide coatings was changed to GB/T 8753.1-2005 Anodizing of aluminium and aluminium alloys-Assessment of quality of sealed anodic oxide coatings Part 1:Phosphoric acid/chromic acid test without nitric acid predip.