SIS SS-ISO 3770:1979
金属涂层．铜加速醋酸盐雾试验（CASS测试）

Metallic coatings — Copper-accelerated acetic acid salt spray test (CASS test)

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标准号

SIS SS-ISO 3770:1979

发布

1979年

发布单位

SE-SIS

 

 

适用范围

This International Standard specifies the apparatus and procedure to be used in conducting the copper-accelerated acetic acid salt /spray test (CASS test) for assessment of the quality of metallic and related coatings made in accordance with the requirements of coating or product specifications. This test was devised for assessing the quality of decorative coatings of copper + nickel + chromium or nickel + chromium; it has also been found suitable for testing anodic oxide coatings on aluminium. The test should be used only for testing such coatings unless otherwise specified. This test is not reliable for comparing copper + nickel + chromium coatings with nickel + chromium coatings, because the accelerating effect of copper corrosion products from copper + nickel + chromium coatings is masked by the effect of copper ions present in the test solution. This International Standard does not specify the type of test specimen, the exposure periods to be used for a particular product or the interpretation of results. Such details are provided in the appropriate coating or product specifications.

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