The EN ISO 26945-2011 standard specifies the technical requirements and test methods for tin-cobalt alloy electrodeposition Coatings in metals and Miscellaneous inorganic coatings. The standard applies to the process of forming tin-cobalt alloy coatings on metal surfaces by electrodeposition methods, covering the composition, performance requirements, test methods and surface mass of the coatings. Tin-cobalt alloy coatings are widely used in the fields of electronics, electrical and anti-corrosion due to their excellent corrosion resistance and good Mechanical Properties. The standard provides clear guidance for the production and quality control of tin-cobalt alloy coatings, ensuring the Reliability and durability of the coatings in various applications.