标准编号：ISO 21809-3:2016
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3部分：安装接头涂层
英文名称：Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 3: Field joint coatings
发布日期：2016-03
标准范围
This part of ISO 21809 specifies requirements for field joint coating of seamless or welded steel pipes for buried and submerged sections of pipeline transportation systems used in the petroleum, petrochemical and natural gas industries as defined in ISO 13623. This part of ISO 21809 specifies the qualification, application and testing of the corrosion protection coatings applied to steel surfaces left bare after the joining of pipes and fittings (components) by welding.This part of ISO 21809 defines and codifies in Table 1 the different types of field joint coatings for pipelines.This part of ISO 21809 does not address requirements for additional mechanical protection, for thermal insulation or for joint infills of concrete weight-coated pipes.
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