This European Standard specifies supplementary requirements for tests, test procedures and acceptance criteria of industrial valves made of metallic materials. The specified tests may be used as type tests, production tests or acceptance tests. The application of these tests is specified in the appropriate product or performance standards. When specified as a normative reference in a valve product or performance standard, this European Standard shall be considered in conjunction with given specific requirements of the valve product or performance standard. Where requirements in a product or performance standard differ from those given in this European Standard, the requirements of the product or performance standard apply. NOTE For testing of industrial valves of thermoplastic materials, ISO 9393-1 and ISO 9393-2 apply.