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Homepage>BS ISO 21809-4:2009 Petroleum and natural gas industries. External coatings for buried or submerged pipelines used in pipeline transportation systems Polyethylene coatings (2-layer PE)

BS ISO 21809-4:2009

Petroleum and natural gas industries. External coatings for buried or submerged pipelines used in pipeline transportation systems Polyethylene coatings (2-layer PE)

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Označení normy:	BS ISO 21809-4:2009
Počet stran:	42
Vydáno:	2010-01-31
ISBN:	978 0 580 57561 7
Status:	Standard

DESCRIPTION

BS ISO 21809-4:2009

This standard BS ISO 21809-4:2009 Petroleum and natural gas industries. External coatings for buried or submerged pipelines used in pipeline transportation systems is classified in these ICS categories:

23.040.10 Iron and steel pipes
75.200 Petroleum products and natural gas handling equipment
25.220.60 Organic coatings

This part of ISO 21809 specifies the requirements for qualification, application, inspection, testing, handling and storage of materials for plant application of two-layer polyethylene coatings (2-layer PE) applied externally for the corrosion protection of bare steel pipe for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623.

NOTE Pipes coated in accordance with this part of ISO 21809 are considered suitable for additional protection by means of cathodic protection.

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