Duties before welding

• Verify that the material is
  in accordance with drawing / WPS
  identified and traced to a test certificate
  in suitable condition (free from damage and contamination)

• WPS is approved and available to welders (and inspectors).

• Welding equipment is in suitable condition and calibrated as appropriate.

• Weld preparations are in accordance with WPS (and/or drawings).

• Identification of welders qualification for each WPS to be used and all welder qualification certificates are valid.

• Welding consumables to be used are
  as specified by the WPS
  stored/controlled as specified by the QC procedure.

• Joint fit-ups are in accordance with WPS / drawings

• Tack welds are acceptable per standards, code or WPS.

• Weld faces are free from defects, contamination, and damage.

• The minimum temperature for Preheat (if required) is in accordance with WPS.

Duties during welding

• Ensure weather conditions are suitable / comply with Code (conditions will not affect welding) when on-site / field welding.

• Welding process must be in accordance with WPS.

• Preheat (if required) minimum temperature is being maintained in accordance with WPS.

• Inter-pass temperature maximum temperature is in accordance with WPS.

• Welding consumables are in accordance with WPS and being controlled as the procedure.

• Welding parameters e.g. Current, volts, travel speed are in accordance with WPS.

• Root run is visually acceptable to Code before filling the joint (for single sided welds).

• Gouging / grinding only allowed by an approved method and to good workmanship standard.

• Inter-run cleaning must be at good workmanship standard.

• The welder is on the approval register /qualified for the WPS being used.

Duties after welding

• Each weld is marked with the welder’s identification and is identified in accordance with drawing/weld map.

• Ensure welds appearance is suitable for all NDT (profile, cleanness, etc) and visually inspect welds and sentence in accordance with Code.

• Check to ensure the dimensions are in accordance with drawing/Code.

• Ensure any modifications are included on as-built drawings.

• Ensure all NDT is complete and reports are available for records.

• Monitor repair work in accordance with the procedure.

• Monitor PWHT  process (if required)  for compliance with the procedure (check chart record).

• Ensure test equipment for Pressure/load test  (if required) is calibrated. Monitor test to ensure compliance with procedure/Code and ensure reports/records are available.

• Ensure all reports/records are completed and collated as required.