Standard Specification for
Composite Ribbed Steel Pipe, Precoated and Polyethylene
Lined for Gravity Flow Sanitary Sewers, Storm Sewers, and
Other Special Applications1

This standard is issued under the fixed designation A 978/A 978M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

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