TYPE PSM Gravity Sewer product line, Vinylplex, Inc. 4” - 15” PSM Sewer pipe; SDR 35 and SDR 26 Vinylplex, Inc. is proud to inform you that this product line is manufactured and/or tested to the following: ASTM D 3034, Type PSM PVC Sewer Pipe PVC Material ASTM D 1784 Cell Class 12364 or 12454* Standard laying length: 14' Rieber type gaskets (push on joint): Conform to ASTM F 477, Elastomeric Seals for Joining Plastic Pipe Vinylplex, Inc. takes great care to manufacture its products to every aspect of referenced industry standards in order to ensure the highest of quality for your piping applications.