1. BS EN ISO 25457:2008. Petroleum, petrochemical and natural gas industries - Flare details for general refinery and petrochemical service (ISO 254572008)

2. BS EN ISO 25980:2014. Health and safety in welding and allied processes - Transparent welding curtains, strips and screens for arc welding processes

3. BS EN ISO 26304:2011. Welding consumables - Solid wire electrodes, tubular cored electrodes and electrode-flux combinations for submerged arc welding of high strength steels - Classification (ISO 263042011)

4. BS EN ISO 27509:2012. Petroleum and natural gas industries - Compact flanged connections with IX seal ring

5. BS EN ISO 27627:2014. Petroleum and natural gas industries - Aluminium alloy drill pipe thread connection gauging (ISO 276272014)

6. BS EN ISO 28300:2008. Petroleum, petrochemical and natural gas industries - Venting of atmospheric and lowpressure storage tanks

7. BS EN ISO 28460:2010. Petroleum and natural gas industries - Installation and equipment for liquefied natural gas - Ship-to-shore interface and port operations (ISO 284602010)

8. BS EN ISO 28781:2010. Petroleum and natural gas industries - Drilling and production equipment - Subsurface barrier valves and related equipment (ISO 287812010)

9. BS EN ISO 28803:2012. Ergonomics of the physical environment - Application of international standards to people with special requirements (ISO 288032012)

10. BS EN ISO 50001:2011. Energy management systems - Requirements with guidance for use