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ASTM
A674-22
Standard Practice for Polyethylene Encasement for Ductile Iron Pipe
2022
8
ASTM Vol.01.02 (2023)
This practice covers materials and installation procedures for polyethylene encasement to be applied to underground installations of ductile iron pipe. It may also be used for polyethylene encasement of fittings, valves, and other appurtenances to ductile iron pipe systems.
The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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