Specifications include, but are not limited to: 1.Material Specifications. All PVC pipe 12-inch and larger shall be rigid polyvinyl chloride (PVC) extruded from Type 1, Grade 1 or 2 PVC resin with a hydrostatic design stress of 2,000 psi for water at 73.4F, designated as PVC 1120 or PVC 1220 conforming to ASTM Standard D1784. Pipe included shall be either 24-inch, 21-inch, 18-inch, 15-inch or 12-inch diameter PIP PVC, Class 80 with a Standard Dimension Ratio (diameter over thickness) of not more than 51. 2.Pipe Dimensions. All PVC pipe unless noted shall conform to Plastic Irrigation Pipe (PIP) dimensions per SCS 430-DD, PVC 1120. 3.Pipe Joints. All pipe shall be furnished with integral bell gasket joints, conforming to ASTM Standard D3139, “Specifications for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals”. The recommended lubricant for joining the pipe joints shall be furnished.