TWI offers certification aligned to the British and European standard for approval testing of plastics welders (BS EN 13067)
and also Entry Level certification, via the internationally recognised Certification Scheme for Welding and Inspection
Personnel (CSWIP)
Certification is available in the following categories:
Hot gas welding
Round nozzle welding of PVC
Speed nozzle welding of PVC
Speed nozzle welding of PP
Speed nozzle welding of PE
Speed nozzle welding of PVDF
Speed nozzle welding of ECTFE, FEP or PFA
Extrusion welding
PP
PE
Butt fusion welding
PP pipe (diameters < 315mm)
PP pipe (diameters > 315mm)
PE pipe (diameters < 315mm)
PE pipe (diameters > 315mm)
PVDF pipe
Socket fusion welding|
PP pipe
PE pipe
PVDF pipe
Electrofusion welding
PE pipe (diameters < 225mm)
PE pipe (diameters > 180mm)
PE pipe (saddle, all diameters)
Geomembrane welding
Machine electric heated wedge welding of PE lining membrane