This Standard establishes material, dimensions, mechanical, and physical (including marking) requirements for socket-type, seam-welded, stainless steel pipe, fittings, joints, and drains for use in plumbing sanitary and storm, drain, waste, and vent (DWV), and vacuum systems. It includes minimum requirements for workmanship, dimensions, weld strength, pressure testing,and marking that incorporates a push-fit joining methodNOTE: Material suitability for specific chemical applications shall be determined by a qualified engineer or ascertained from the manufacturer