This standard covers materials and installation procedures for polyethylene encasement to be applied to underground installations of ductile-iron pipe. This standard may also be used for polyethylene encasement of fittings, valves, and other appurtenances to ductile-iron pipe systems. Appendix A contains notes on procedures for soil survey tests and observations and their interpretation to determine whether polyethylene encasement should be used.
AWWA C105/A21.5-05 History
AWWA C105/A21.5-18
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AWWA C105/A21.5-05
$70.00 $140.00
AWWA C105/A21.5-99
$70.00 $140.00
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