2021EN ISO 15245-1:2021 Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 1: Specification (ISO 15245-1:2021)
2013EN ISO 15245-1:2001/A1:2013 Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 1: Specification (ISO 15245-1:2001/Amd 1:2013)
2001EN ISO 15245-1:2001 Gas cylinders Parallel threads for connection of valves to gas cylinders Part 1: specification ISO 15245-1: 2001