1.1 This specification covers requirements for poly(vinyl chloride) (PVC) closed profile sewer pipe and fittings with integral bell and elastomeric seal joints or plain end pipe with couplings in sizes (18 to 60 in.) based on a controlled inside diamet This specification covers the requirements for poly(vinyl chloride) closed profile gravity sewer pipe and fittings with integral bell and elastomeric seal joints or plain end pipe with couplings based on a controlled inside diameter intended for non-pr