NEN EN 286-1 : 1998 AMD 2 2005

Foreword
1. Scope
2. Normative references
3. Definitions, symbols and units
    3.1 Definitions
    3.2 General symbols and units
4. Classification and certification procedures
5. Materials
    5.1 Main pressurized parts
    5.2 Accessories contributing towards the strength of
         vessels
    5.3 Non-pressurized parts
    5.4 Welding consumables
6. Design
    6.1 General
    6.2 Weld joint design
    6.3 Determination of wall thicknesses
    6.4 Calculation method
    6.5 Experimental method
    6.6 Access and inspection openings
    6.7 Drainage openings
    6.8 Supports
7. Fabrication
    7.1 Manufacturing and testing equipment
    7.2 Forming of ends and shell
    7.3 Typical connections of main body
    7.4 Welding
8. Qualification of welders and welding operators
9. Qualification of welding procedures
    9.1 General
    9.2 Additional requirements for steel vessels
    9.3 Existing welding procedures
10. Testing
    10.1 Calibration
    10.2 Vessels designed by calculation method
    10.3 Vessels designed by experimental method
    10.4 Testing records
    10.5 Pressure test
11. Documentation to accompany the vessel
12. Marking
Annexes
A. (normative) Verification
B. (normative) Declaration of conformity-surveillance
C. (normative) Design and manufacturing schedules
D. (normative) Type examination
E. (normative) Content of the manufacturing record
F. (normative) Test of the protection against corrosion
G. (informative) Essential safety requirements

Applies to the design and manufacture of welded, simple unfired pressure vessels manufactured in series, with a single compartment, hereinafter referred to as vessels, the essential safety requirements of which are given in Annex G.