The applied standards or other technical specifications (such as national technical standards and specifications) must be indicated in a precise, complete and clearly defined way in the EU-Declaration of Conformity; this implies that the version and/or date of the relevant standard is specified.
It is not requested to give the complete list of the standards used in combination with the governing document.
If a harmonised standard partially applied
The different parts (design, manufacture, inspection, …) of a harmonised standard, a code or a specification for pressure equipment form a consistent set of documents which should be followed.
Nevertheless, the partial use of a harmonised standard, a code or a specification is not forbidden.
In these conditions, the essential requirements covered by the part(s) of harmonised standards, codes or specifications used shall be identified. The essential requirements not covered by the part(s) of harmonised standards, codes or specifications shall be subject to an analysis to judge the validity of the adopted solutions.
Then, if several different parts of harmonised standards, codes or specifications are used, it shall be verified that there are no incompatibility or inconsistency between these parts, particularly for the application data (permissible stress, safety coefficient, extent of the inspection, …).
Language of Declaration of Conformity
The EU declaration of conformity must be translated into the language or languages required by the Member State in which the product is placed or made available on the market. If a translation of the EU declaration of conformity has been produced by another economic operator and is not signed by the manufacturer, a copy of the original EU declaration of conformity signed by the manufacturer must also be provided together with the translated version.