CSN EN IEC 62541-21

CSN EN IEC 62541-21 This part of IEC 62541 defines the life cycle of Devices and Composites and mechanisms to verify their authenticity, set up their security and maintain their configuration. The NodeIds of all Nodes described in this standard are only symbolic names. Annex A defines the NamespaceUri for all NodeIds and the actual NodeIds.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.