标准编号：ISO 21809-11:2019
中文名称：石油和天然气工业 管道运输系统用埋地或埋地管道的外部涂层 第11部分：现场应用、涂层修理和修复用涂层
英文名称：Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 11: Coatings for in-field application, coating repairs and reh
发布日期：2019-04
标准范围
This document specifies the criteria and requirements for the in-field application of coatings, coating
repair and coating rehabilitation on buried pipelines.
This document specifies:
— coating assessment (new and existing);
— removal of degraded coatings;
— surface preparation;
— on site or in situ application of external coatings.
It is applicable to petroleum or natural gas pipelines, with or without a cathodic protection system.
The pipelines could be operational during the removal, preparation and application process.
This document states qualification/testing for field contractors and site applied coatings to all of the
pipeline components, including bends, tees, fittings, valves and interfaces between different coatings in
soil-to-air pipeline sections.
Technical and performance characteristics of the repair and rehabilitation coating materials are
referenced to ISO 21809-3.
The coating of field joints is outside the scope of this document. Field joint coatings are dealt with in
ISO 21809-3.
This document excludes the application of coatings when the pipeline is immersed (submerged).
立即下载标准文件