As «Simple Pressure Vessel» is considered any welded vessel subjected to an internal gauge pressure greater than 0,5 bar which intended use is to contain air or nitrogen, not intended to be combusted. Swiss Approval is Notified Body 2221, for the Directive 2014/29/EU – [OLD 2009/105/EC] – having inspected and approved a wide range of welded vessels, on behalf of more than 300 different constructors worldwide.
| Field of inspection | Type of inspection | Normative Regulations/ Standards/ In house procedure Directive 2014/29/ΕU |
| Simple Pressure Vessels | Directive 2014/29/ΕU M.D. 46248/1008/2016 (G.G. 1339/B/2016) | |
| -EU-Type Examination | Annex II, point 1, Module B | |
| -Conformity to type based on internal production control plus supervised vessel testing | Annex II, point 2, Module C1 | |
| -Conformity to type based on internal production control plus supervised vessel checks at random intervals | Annex II, point 3, Module C2 | |
| -Conformity to type based on internal production control | Annex II, point 4, Module C | |
| ΕΝ286-1 |