DVS 2203-1 Beiblatt 3-2003 Testing of welded joints of thermoplastics sheet and pipes - Requirements - Technological bend test; Bend angle/ram displacement
DVS 2203-1 Beiblatt 4-2008 Testing of welded joints between panels and pipes made of thermoplastics - Requirements on shear and peeling tests for sleeve welding with an incorporated electric heating element (HM) and heated tool sleeve welding (HD) on pipes and fittings
DVS 2203-1-2003 Testing of welded joints of thermoplastics sheet and pipes - Test methods - Requirements