NBN EN 12266-1:2003

This standard specifies mandatory requirements for tests, test procedures and acceptance criteria for production testing of industrial valves.
The specified tests may also be used as type tests or acceptance tests.
When specified as a normative reference in a valve product or performance standard, this standard has to be considered in conjunction with the specific requirements of that valve product or performance standard. Where requirements in a product or performance standard differ from those given in this standard, the requirements of the product or performance standard apply.