This Part of this European Standard specifies requirements for the design of unfired pressure vessels covered by
EN 13445-1:2009 and constructed of steels in accordance with EN 13445-2:2009.
EN 13445-5:2009, Annex C specifies requirements for the design of access and inspection openings, closing
mechanisms and special locking elements.
NOTE This Part applies to design of vessels before putting into service. It may be used for in service calculation or analysis
subject to appropriate adjustment.