1.1 This standard specifies the apparatus, reagents and the procedure to be used and prescribes the conditions for conducting the acetic acid salt spray ( ASS ) test for assessment of the quality, by way of corrosion resistance, of metallic coatings applied in accordance with the requirements of the respective coating or product specifications.
1.2 The detailed requirements of this method have no significance other than to ensure that comparable results are obtained by different laboratories, testing the same coating or product. This method of testing is especially useful for testing decorative coatings of copper + nickel + chromium or nickel + chromium; it has also been found suitable for testing anodic coatings of thickness between 3 to 5 micrometres on aluminium.
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 products specifications.
IS 6910-1985 history
1985IS 6910-1985 Method for testing the corrosion resistance of electroplated and anodized aluminum coatings using the acetic acid salt spray test