ISO 21809-3 External Coatings for Buried or Submerged Pipelines used in Pipeline Transportation Systems
ISO 21809-3 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.
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ISO 21809-3 Petroleum and Natural Gas Industries
External Coatings for Buried or Submerged Pipelines used in Pipeline Transportation Systems
Part 3: Field Joint Coatings
ISO 21809-3 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 -3 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 ISO standard does not address requirements for additional mechanical protection, for thermal insulation or for joint infills of concrete weight-coated pipes.
NOTE Field joints of pipes and fittings coated in accordance with this part of ISO 21809 are considered suitable for further protection by means of cathodic protection.
*** Before conducting ISO 21809-3 , it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.
***PARSROS offers several types of grips and fixtures which will enable you to perform a variety of tests
that are accurate and repeatable.
