AWWA C105/A21.5 Polyethylene Encasement for Ductile-Iron Pipe Systems
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AWWA C105/A21.5 Document Information:
Title
Polyethylene Encasement for Ductile-Iron Pipe Systems
American Water Works Association
Publication Date:
Dec 1, 2005
Scope:
This standard describes materials and installation procedures for polyethylene encasement to be applied to underground installations of ductile-iron pipe. This standard also may be used for polyethylene encasement of fittings, valves, and other appurtenances to ductile-iron pipe systems.
Purpose
The purpose of this standard is to provide the minimum requirements for polyethylene sheet and tubes to be used for external corrosion protection of buried ductile-iron pipe, fittings, and appurtenances.
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