EN ISO 11621:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Abbreviations
4 General requirements
5 Actions for change of service
Annex A (informative) Procedures for cleaning
                       gas cylinders
Annex ZA (normative) Normative references to
                       international publications
                       with their corresponding European
                       publications

This International Standard applies to seamless steel, aluminium alloy and welded steel refillable cylinders of all sizes, including large cylinders (water capacity greater than 150 I).It provides general requirements and procedures to be considered whenever a cylinder is being transferred from one gas service to another for permanent and liquefied gases.It does not apply to cylinders for dissolved acetylene, radioactive gases or gases listed in group G of table I.