GB/T 12332-1992 "Nickel platings for metal cladding engineering" standard specifies the technical requirements for nickel plating on ferrous metals and non-ferrous metals, mainly for engineering applications and protection of decorative nickel platings. The standard is equivalent to ISO 4526-1984 and is suitable for applications with a thickness of nickel platings above 30 µm. It does not apply to nickel platings for primary decorative purposes. The standard includes requirements for nickel layer surface Appearance, thickness, Hardness, bond strength, porosity, etc., and provides detailed provisions for Eletroplating pretreatment, test methods and heat treatment. Ensure that platings mass meets the expected standards to meet the durability and performance requirements of engineering applications.