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Legislation/Applicable standard

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ReferenceTitle
LVS EN ISO 17637:2011 LNon-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003)
LVS EN ISO 21809-1:2011Petroleum 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)
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