NF A49-721-2:2009 Petroleum and natural gas industries - External coatings for buried and submerged pipelines used in pipeline transportation systems - Part 2 : fusion-bonded epoxy coatings.
2009NF A49-721-2:2009 Petroleum and natural gas industries - External coatings for buried and submerged pipelines used in pipeline transportation systems - Part 2 : fusion-bonded epoxy coatings.