ISO 2081:2018规定了对铁或钢进行补充处理的镀锌层的要求。它包括买方提供给电镀机的信息，以及电镀前后的热处理要求。 ISO 2081:2018不适用于应用的锌涂层 -以非装配形式进行薄板、带材或线材， -关闭螺旋弹簧，或 -用于保护或装饰以外的目的。 ISO 2081:2018未规定镀锌前母材表面状况的要求。然而，基体金属表面的缺陷会对涂层的外观和性能产生不利影响。 适用于螺纹部件的涂层厚度可能受到尺寸要求的限制，包括等级或配合。

ISO 2081:2018 specifies requirements for electroplated coatings of zinc with supplementary treatments on iron or steel. It includes information to be supplied by the purchaser to the electroplater, and the requirements for heat treatment before and after electroplating. ISO 2081:2018 is not applicable to zinc coatings applied - to sheet, strip or wire in the non-fabricated form, - to close-coiled springs, or - for purposes other than protective or decorative. ISO 2081:2018 does not specify requirements for the surface condition of the basis metal prior to electroplating with zinc. However, defects in the surface of the basis metal can adversely affect the appearance and performance of the coating. The coating thickness that can be applied to threaded components can be limited by dimensional requirements, including class or fit.