1. BS EN ISO 21329:2004. Petroleum and natural gas industries - Pipeline transportation systems - Test procedures for mechanical connectors

2. BS EN ISO 21457:2010. Petroleum, petrochemical and natural gas industries - Materials selection and corrosion control for oil and gas production systems (ISO 214572010)

3. BS EN ISO 21809-1:2011. Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems Part 1: Polyolefin coatings (3- ayer PE and 3- layer PP)

4. BS EN ISO 21809-2:2014. Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems Part 2: Single layer fusion- bonded epoxy coatings

5. BS EN ISO 21809-3:2016. Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems Part 3: Field joint coatings

6. BS EN ISO 21809-5:2010. Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems Part 5: External concrete coatings (ISO 21809-52010)

7. BS EN ISO 21952:2012. Welding consumables - Wire electrodes, wires, rods and deposits for gas shielded arc welding of creep-resisting steels - Classification (ISO 219522012)

8. BS EN ISO 22854:2016. Liquid petroleum products - Determination of hydrocarbon types and oxygenates in automotive-motor gasoline and in ethanol (E85) automotive full -multidimensional gas chromatography method (ISO 228542016)

9. BS EN ISO 22975-3:2014. Solar energy - Collector components and materials Part 3: absorber surface durability

10. BS EN ISO 23251:2007 + A1:2008. Petroleum, petrochemical and natural gas industries - Pressure-relieving and depressuring systems