EN 12007-2:2012 燃气基础设施.最大工作压力达到和超过16 bar的管线.聚乙烯专门功能要求(MOP小于等于10 bar)
Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 2: Specific functional requirements for polyethylene (MOP up to and including 10 bar)