1. Grewell , D.A. ; Benatar , J.A. ; Park , B. Plastics and Composites Welding Handbook, Hanser Publishers, Munich , 2003 .
2. Benkreira , H. ; Day , A.J. ; Shillitoe , S. Butt fusion joining of polyethylene pipes: A theoretical approach. Proc. Int. Conf. on Advances in Joining Plastics and Composites, 10–12 June 1991 .
3. ASTM D 2657–97. 1997. Standard practice for heat fusion joining of polyolefin pipe and fittings. American Society for Testing and Materials. Philadelphia, PA , 1997 .
4. Nonhof , C.J. Optimization of hot plate welding for series and mass production, TNO Plastics and Rubber Research Institute Delft, The Netherlands ; 1996 .