標準號：SIS SS-ISO 4540-1983
中文標準名稱：金屬涂層．基體陰*涂層．進行腐蝕試驗的電鍍試樣數值
英文標準名稱：Meta I lic coatings - Coatings cathodic to the substrate - Rating of electroplated test specimens subjected to corrosion tests
發布日期：1983/6/25 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1 This International Standard specifies a method of evaluating the condition of electroplated test specimens that have been exposed to corrosive environments for test purposes.It is based on experience of the method with standard TO cm x 15 cm test panels, exposed on r?cks at outdoor test sites in natural atmospheres. It has also been used for rating similar panels that have been subjected to accelerated tests, such as those specified in ISO 3768, Meta/lic coatings — Neutral salt spray test (NSS test), ISO 3769, Meta/lic coatings - Acetic acid salt spray test (ASS test), ISO 3770, Meta/lic coatings — Copper-accelerated acetic acid salt spray test (CASS test) and ISO 4541, Metallic and other non-organic coatings — Corrodkote corrosion test (CORR test). Any modifications needed to adapt the method to rating actual pro-duction parts are not considered in this International Standard.2 This method is applicable only to decorative and protec-tive coatings that are cathodic to the substrate, for example nickel plus chromium or copper plus nickel plus chromium on steel or zinc die castings. It is not intended for use with anodic sacrificial coatings such as zinc and cadmium on steel.