標準號：IS 5528-1985
發布日期：1985/10/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1.1 This standard specifies the reagents, the procedure to be used and prescribes conditions for conducting the copper accelerated acetic acid salt spary ( CASS ) test for assessment of the quality, by way of corrosion resistance of metallic and related coatings applied in accordance with the requirements of the respective coating or product specifications.1.2 This test was devised for assessing the quality of decorative coatings of copper + nickel + chromium or nickel + chromium; it has been also found suitable for testing anodic oxide coatings of 5 micrometres and above 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 marked by the copper ions present in the test solution.1.2.1 The suitability of this test and the correlation of the results with service exposures should be determined before it is specified for coatings other than those mentioned earlier.1.3 This standard does not specify the type of test specimen, the exposure period for a particular coating or product, or the interpretation of results. Such details are given in the appropriate coating or product specifications.