BS EN 15001-1-2009 天然气基础设施.工业设施大于0-5巴,工业和非工业设施大于5巴工作压力的天然气装置管道.设计的详细功能要求和材料
Gas infrastructure - Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations - Detailed functional requirements for design, materials, co