1. BS EN ISO 20843:2011. Petroleum and related products - Determination of pH of fire-resistant fluids within categories HFAE, HFAS and HFC

2. BS EN ISO 20844:2004. Petroleum and related products - Determination of the shear stability of polymer-containing oils using a diesel injector nozzle

3. BS EN ISO 20846:2011 BS 2000-490:2011. Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fluorescence method (ISO 208462011)

4. BS EN ISO 20847:2004 BS 2000-496:2004. Methods of test for petroleum and its products - BS 2000-496 Petroleum products - Determination of sulfur content of automotive fuels - Energy-dispersive X-ray

5. BS EN ISO 20884:2011 BS 2000-497:2011. Petroleum products - Determination of sulfur content of automotive fuels - Wavelength-dispersive X-ray fluorescence spectrometry (ISO 208842011)

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

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

8. 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)

9. 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

10. 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