update:

EN ISO 3807:2013 Gas cylinders - Acetylene cylinders - Basic requirements and type testing (ISO 3807:2013, Corrected version 2014-11-01) - added missing standard
EN ISO 7866:2012/AC:2014 Gas cylinders - Refillable seamless aluminium alloy gas cylinders - Design, construction and testing - Technical Corrigendum 1 (ISO 7866:2012/Cor 1:2014) - added missing AC
EN ISO 11118:2015 Gas cylinders - Non-refillable metallic gas cylinders - Specification and test methods (ISO 11118:2015) - added missing standard
EN ISO 11623:2015 Gas cylinders - Composite construction - Periodic inspection and testing (ISO 11623:2015) - added missing standard
EN 16509:2014 Transportable gas cylinders - Non-refillable, small transportable, steel cylinders of capacities up to and including 120 ml containing compressed or liquefied gases (compact cylinders) - Design, construction, filling and testing - added missing standard
EN ISO 25760:2015 Gas cylinders - Operational procedures for the safe removal of valves from gas cylinders (ISO 25760:2009) - added missing standard

[link Point to another website Only the registered members can access]

or

[link Point to another website Only the registered members can access]