NF A49-721-1:2012
Petroleum and natural gas industries - External coatings for buried and submerged pipelines used in pipeline transportation systems - Part 1 : polyolefin coatings (3-layer PE and 3-layer PP).

Standard No.

NF A49-721-1:2012

Release Date

2012

Published By

Association Francaise de Normalisation

Latest

NF A49-721-1:2012

Replace

NF A49-710:1988 NF A49-711:1992

NF A49-721-1:2012 history

• 2012 NF A49-721-1:2012 Petroleum and natural gas industries - External coatings for buried and submerged pipelines used in pipeline transportation systems - Part 1 : polyolefin coatings (3-layer PE and 3-layer PP).
• 1992 NF A49-711:1992 Steel tubes. External coating with three polypropylene layers coating. Application by extrusion.
• 1988 NF A49-710:1988 Steel tubes. External coating with three polyethylene based coating. Application through extrusion.