标准摘要
[中文适用范围]： 本国际标准规定了电气、电子和其他工程应用的电镀银和银合金涂层的要求，包括测试方法。 工程应用被定义为涂层主要用于非装饰目的的应用。 虽然本国际标准没有规定电镀时基础材料的状况、光洁度或表面粗糙度，但电镀银和银合金涂层的外观和适用性取决于基础材料的状况。 买方必须指定基础材料的表面光洁度和粗糙度，以符合产品要求。 本国际标准不适用于螺纹上的涂层或非制造中的片材、带材或线材上的涂层。 形式 [外文原描述]： ISO 4521:2008 specifies requirements for electroplated silver and silver alloy coatings for electrical, electronic and other engineering applications, including test methods. Engineering applications are defined as those in which the coating essentially serves a non-decorative purpose. Although ISO 4521:2008 does not specify the condition, finish or surface roughness of the basis material prior to electroplating, the appearance and serviceability of electroplated silver and silver alloy coatings depends on the condition of the basis material. It is essential that the purchaser specifies the surface finish and roughness of the basis material in order to conform to the product requirements. ISO 4521:2008 does not apply to coatings on screw threads or to coatings on sheet, strip or wire in the non-fabricated form.
英文名称Metallic and other inorganic coatings — Electrodeposited silver and silver alloy coatings for engineering purposes — Specification and test methods