标准编号：ISO 21809-1:2011
中文名称：石油和天然气工业 管道输送系统中使用的地下或水下管道的外部涂层 第1部分：聚烯烃涂层（3层聚乙烯和3层聚丙烯）
英文名称：Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)
发布日期：2011-07
标准范围
This part of ISO 21809 specifies requirements of plant-applied external three-layer polyethylene- andpolypropylene-based coatings for corrosion protection of welded and seamless steel pipes for pipelinetransportation systems in the petroleum and natural gas industries in accordance with ISO 13623.NOTE Pipes coated in accordance with this part of ISO 21809 are considered suitable for further protection bymeans of cathodic protection.
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