พลาสติก
เอกสารมาตรฐาน
สหรัฐอเมริกา
AASHTO
M 304-11 (2019)
Poly(Vinyl Chloride) (PVC) Profile Wall Drain Pipe and Fittings Based on Controlled Inside Diameter
2011 (2019)
9
HM42-2022 part 1
This specification covers poly(vinyl chloride) (PVC) profile wall perforated and nonperforated pipe and fittings, 100 to 1200 mm (4 to 48 in.) nominal inside diameter, for use in nonpressure storm drains, culverts, underdrains, and other subsurface drainage systems providing either soiltight or watertight joints.