DIN EN ISO 21809-2-2008 石油和天然气工业.管道运输系统用掩埋于地下或淹没于水下的管道外部覆层.第2部分:熔接环氧涂层
Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 2: Fusion-bonded epoxy coatings (ISO 21809-2:2007); English version EN ISO 21809-2:2007