SSH EN ISO 21809-1:2011

Industritë e naftës dhe gazit natyror - Veshje të jashtme për tubacionet nëntokësore dhe nënujore që përdoren në sistemet e transportit të tubacioneve - Pjesa 1: Veshje polyolefin (3-shtresë PE dhe 3-shtresë PP) (ISO 21809-1:2011)

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) (ISO 21809-1:2011)

Scope

ISO 21809-1:2011 specifies requirements of 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.
Pipes coated in accordance with ISO 21809-1:2011 are considered suitable for further protection by means of cathodic protection.