EN 13445 - Unfired Pressure Vessels is a standard that provides rules for the design, fabrication, and inspection of pressure vessel

Pressure vessel

A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.The pressure differential is dangerous and many fatal accidents have occurred in the history of their development and operation. Consequently, their design,...

s

EN 13445 consists of 7 parts:

• EN 13445-1 : Unfired pressure vessels - Part 1: General
• EN 13445-2 : Unfired pressure vessels - Part 2: Materials
• EN 13445-3 : Unfired pressure vessels - Part 3: Design
• EN 13445-4 : Unfired pressure vessels - Part 4: Fabrication
• EN 13445-5 : Unfired pressure vessels - Part 5: Inspection and testing
• EN 13445-6 : Unfired pressure vessels - Part 6: Requirements for the design and fabrication of pressure vessels and pressure parts constructed from spheroidal graphite cast iron
• EN 13445-8 : Unfired pressure vessels - Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloys

Parts 7 and 9 do exist but they are merely technical reports.

It was introduced in 2002 as a replacement for national pressure vessel design and construction codes and standards in the European Union and is harmonized with the Pressure Equipment Directive

Pressure Equipment Directive

The Pressure Equipment Directive 97/23/EC of the EU sets out the standards for the design and fabrication of pressure equipment generally over one litre in volume and having a maximum pressure more than 0.5 bar gauge...

(97/23/EC or "PED").