DIN CEN ISO/TR 13881-2011 石油和天然气工业.产品,加工和服务的分类和合格评定(ISO/TR 13881-2000).英文版本CEN ISO/TR 13881-2011
Petroleum and natural gas industries - Classification and conformity assessment of products, processes and services (ISO/TR 13881:2000); English version CEN ISO/TR 13881:2011