With the emergence of the various European directives, including the PED (Pressure Equipment Directive) and the CPR (Construction Products Regulation), a quality system is more and more important, placing greater responsibility on the manufacturers.

One of the most important standards is the EN ISO 3834-series, describing the requirements for a quality system for fusion welding of metallic materials.
ISO 9001 considers welding as a "special" process. This standard refers to many other standards, who deal with the different aspects of welding, such as for example: qualification of welders, welding procedures, materials, ...


The Belgian Welding Institute (BWI) assists

  • manufacturers in implementing these standards
  • clients in composing specifications