EN ISO 9809-2:2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Inspection and testing
6 Materials
7 Design
8 Construction and workmanship
9 Type approval procedure
10 Batch tests
11 Tests/examinations on every cylinder
12 Certification
13 Marking
Annex A (normative) - Description and evaluation of
        manufacturing imperfections and conditions for
        rejection of seamless steel gas cylinders at time
        of final visual inspection by the manufacturer
Annex B (normative) - Ultrasonic examination
Annex C (informative) - Type approval certificate
Annex D (informative) - Acceptance certificate
Bibliography
Annex NA (normative) - Specific European requirements

ISO 9809-2:2010 specifies minimum requirements for the material, design, construction and workmanship, manufacturing processes, examination and testing at manufacture of refillable quenched and tempered seamless steel gas cylinders of water capacities from 0,5 l up to and including 150 l for compressed, liquefied and dissolved gases. ISO 9809-2:2010 is applicable to cylinders with a maximum tensile strength Rma of greater than or equal to 1 100 MPa. It is not applicable to cylinders with Rma, max of greater than 1 300 MPa for diameters greater than 140 mm and guaranteed wall thicknesses greater than or equal to 12 mm and Rma, max greater than or equal to 1 400 MPa for diameters of less than or equal to 140 mm and guaranteed wall thicknesses greater than or equal to 6 mm, because beyond these limits, additional requirements can apply.If desired, cylinders of water capacity less than 0,5 l and between 150 l and 500 l can be manufactured and certified to be in compliance with ISO 9809-2:2010.