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AASHTO M 278-02 (R2011)
- Standard Specification for Class PS46 Poly(Vinyl Chloride) (PVC) Pipe
- standard by American Association of State and Highway Transportation Officials,
- Publisher: AASHTO
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This specification covers the requirements and methods of test for smooth-wall perforated and unperforated poly(vinyl chloride) (PVC) plastic pipe, couplings and fittings for use in subsurface drainage and surface drainage (culverts) of transportation facilities, where soil support is given to its flexible walls in all applications.