Recommended sources include American Society for Testing Materials F2620 Standard Practice for Heat Fusion Joining of Polyethylene Pipe and Fittings, American Water Works Association M55 PE Pipe Design and Installation, Plastic Pipe Institute PE Handbooks TR-33 Generic Butt Fusion Joining Procedure and TR-41 Generic Saddle Fusion Joining Procedure, McElroy Catalogs and Training Videos, or you may contact an Industrial Sales Representative to assist you in locating the information of interest.