06
Sep
Salt Spray Test For Aluminium. Aluminum must pass a 100-hour NSS test to meet MIL-SPEC standards which is a very high bar. It should be noted that there are several types of aluminum alloy. For example small additions of magnesium or aluminium to a zinc coating will produce salt spray test results that differ significantly from real exposure conditions. Acetic Acid Salt Spray and Copper-Accelerated Salt Spray also known as AASS and CASS respectively are mostly used for electrodeposited coppernickelchromium coatings nickelchromium coatings and sometimes anodic coatings on aluminium.
In the aeronautical industry 2 categories are predominantly used. This is an accelerated form for atmospheric. Former DIN 50021 Fundamentally speaking the corrosion resistance of a material or of a protective anti-corrosion coating on it can be determined with the aid of a salt spray test in accordance with DIN EN ISO 9227. During the testing the test specimens are placed in a chamber which is continuously misted with a 5 saline. Acetic Acid Salt Spray and Copper-Accelerated Salt Spray also known as AASS and CASS respectively are mostly used for electrodeposited coppernickelchromium coatings nickelchromium coatings and sometimes anodic coatings on aluminium. Anodizing Test Results Anodizing Test Illustrates Protection Levels.
It is done by spraying salt on a specimen housed in a closed chamber.
Iron Carbon 12 Chromium 105 Stainless Steel. The salt spray test can give similarly misleading results when comparing different variants of zinc coatings. There are several problems with ASTM B117 salt spray test when trying to rank the corrosion performance of automotive parts. During the testing the test specimens are placed in a chamber which is continuously misted with a 5 saline. Former DIN 50021 Fundamentally speaking the corrosion resistance of a material or of a protective anti-corrosion coating on it can be determined with the aid of a salt spray test in accordance with DIN EN ISO 9227. For example small additions of magnesium or aluminium to a zinc coating will produce salt spray test results that differ significantly from real exposure conditions.