This document specifies requirements for plant-applied external three-layer polyethylene and polypropylene based coatings for corrosion protection of welded and seamless steel pipes for pipeline transportation systems in the petroleum and natural gas industries in accordance with ISO 13623.
NOTE Pipes coated in accordance with this document are considered suitable for further protection by means of cathodic protection.
دستگاه تست پوشش بیرونی خطوط لوله مدفون یا غوطه ور مورد استفاده در سامانه های لوله گذاری – قسمت 4- پوشش پلی اتیلن (پلی اتیلن دو لایه )
استاندارد ملی 4-21584 که بر مبنای ISO 21809-4 است، برای پوشش پلی اتیلن دو لایه است.
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ISO 21809-1:2018
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)
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60.60 | |
ISO 21809-2:2014
Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 2: Single layer fusion-bonded epoxy coatings
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90.92 | |
ISO 21809-3:2016
Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 3: Field joint coatings
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90.92 | |
ISO 21809-3:2016/AMD 1:2020
Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 3: Field joint coatings — Amendment 1: Introduction of mesh-backed coating systems
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60.60 | |
ISO 21809-4:2009
Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 4: Polyethylene coatings (2-layer PE)
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90.93 | |
ISO 21809-5:2017
Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 5: External concrete coatings
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90.92 | |
ISO 21809-11:2019
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 rehabilitation
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فراتست عرضه کننده دستگاه های تست
0912-3750274
021-88705040