1062 ITU‐T's Technical Reports and Specifications Work area FG‐SSC delivera‐ble(s) relat‐ed to this work area SDO working on this area Document number released by this SDO Corresponding document title Standardiza‐tion gap in this area Future needs and sugges‐tions to SG5 ISO 21809‐3:2008 Petroleum and natural gas industries – External coatings for buried or submerged pipe‐lines used in pipeline trans‐portation systems – Part 3: Field joint coatings ISO/DIS 21809‐3 Petroleum and natural gas industries – External coatings for buried or submerged pipe‐lines used in pipeline trans‐portation systems – Part 3: Field joint coatings, including Amd.1 (2011) ISO 21809‐4:2009 Petroleum and natural gas industries – External coatings for buried or submerged pipe‐lines used in pipeline trans‐portation systems – Part 4: Polyethylene coatings (2‐layer PE) ISO/NP 21809‐5 Petroleum and natural gas industries – External coatings for buried or submerged pipe‐lines used in pipeline trans‐portation systems – Part 5: External concrete coatings ISO 21809‐5:2010 Petroleum and natural gas industries – External coatings for buried or submerged pipe‐lines used in pipeline trans‐portation systems – Part 5: External concrete coatings ISO/NP 21809‐6 Petroleum and natural gas industries – External coatings for buried or submerged pipe‐lines used in pipeline trans‐portation systems – Part 6: Multilayer fusion‐bonded epoxy coatings (FBE) ISO/AWI 21809‐11 Petroleum and natural gas industries – External coatings for buried or submerged pipe‐lines used in pipeline trans‐portation systems – Part 11: Coating repairs on rehabilitation