3624-050

1 PURPOSE AND SCOPE The purpose of this standard is to establish requirements for dimensions, characteristics and test methods relating to PVC plastic rigid perforated pipe and fittings used for underground gravity disposal of wastewaters. It applies to rigid pipe and fittings (see note) with smooth interior wall, generally equipped with sockets for solvent cement assembly. This standard is specifically applicable to rigid pipe and fittings used for treating septic tank wastewaters by soil percolation. NOTE - Pipe and fittings may be smooth or corrugated, single or smooth walls, coextruded, but they shall have a smooth inner wall.