ISO 22778:2006规定了铁、钢和其他基材上物理气相沉积产生的高纯度镉涂层的要求。它提供了确定是否满足要求的测试方法，以及指定镉和铬酸盐转化涂层和其他补充处理的方法。

ISO 22778:2006 specifies requirements for high-purity cadmium coatings produced by physical vapour deposition on iron, steel, and other substrates. It provides test methods to determine that the requirements have been met, and a method for designating the cadmium and chromate conversion coatings and other supplementary treatments.