ISO 4539:1980 铬电镀层.电解腐蚀试验（EC试验）

标准编号：ISO 4539:1980

中文名称：铬电镀层.电解腐蚀试验（EC试验）

英文名称：Electrodeposited chromium coatings — Electrolytic corrosion testing (EC test)

发布日期：1980-10

标准范围

规定了一种快速、准确的方法，用于评估户外用钢或锌基压铸件上电镀层的耐腐蚀特性。未说明特定产品的暴露期，也未说明对结果的解释。提供试验条件，通过铬覆盖层中的不连续性电解溶解底层镍涂层，电解2分钟产生的腐蚀程度与使用1年的腐蚀程度大致相同。

Specifies a rapid and accurate method for evaluating the corrosion resistance characteristics of electrodeposits on steel or zinc-base die casting designed for outdoor service. Does not describe exposure periods to be used for a specific product, nor the interpretaiton to be given to the results. Test conditions are provided to electrolytically dissolve the underlying coatings of nickel through discontinuities in the chromium overlay at such a rate that electrolysis for 2 min produces about the same extent of corrosion as does 1 year of service.

标准预览图