MDG-TSG-LP-012.320

Quality System:<br><br>Are copies of the Quality Manual, Procedures, Project Quality Plan and Audit Plan available?

Project Organisation:<br><br>Has a project Organisation been established?<br>Who is responsible for approving Weld and NDT procedures (Section 2 - 9 of P2)?<br>Are responsibilities defined within documented procedures? Are training requirements for approval personnel defined?

CDM Regulations:<br><br>Has a Risk Assessment been carried out and has a Method Statement for Pipeline Welding been issued for Construction?

Weld Procedure Approval:<br><br>Do procedures define welder approval requirements?<br>Have all weld qualification tests been completed?<br>Is there a register of approved weld procedures including weld repairs?<br><br>Is there a register of approved welders?<br>Are procedures approved by the correct authority?<br>Do procedures cover AGIs and pipeline?

NDT Procedure Approval:<br><br>Are there procedures for the approval of NDT personnel?<br>Is there a register of approved NDT procedures?<br>How are NDT procedures qualified?<br>Is there a register of approved NDT inspectors?<br>Are procedures approved by the correct authority?<br>What qualifications does radiographic interpreter have?

Site Stores:<br><br>Are materials verified/inspected upon receipt?<br>Are records of verification/inspection raised, do they identify the person responsible for this activity?<br>Are there any materials in store subject to control to prevent deterioration, e.g. shelf life material, materials to be stored above or below defined temps. If so how are they controlled?<br>Do documented procedures define material receipt, and storage requirements?

Receipt of Pipes/Bends:<br><br>Receipt of pipes/bends, refer to Tables 2 and 6 for grades.<br>Are pipes/bends subject to inspection on arrival at site?<br>Are inspection records raised and authorised?<br>Are pipe/bend receipt controls defined within documented procedures?

Pipe/Bend Mill Certification:<br><br>Are material certificates reviewed on receipt (para 4.1.f)?<br>Are certificates controlled to ensure traceability?<br>Are certificates traceable to pipe/cast numbers?<br>Do documented procedures define certification control?

Receipt and Control of Welding Consumables:<br><br>Are electrodes and gases verified/inspected on receipt. <br>Are electrodes used those approved by NGT(Transco), para 7.1.<br>Is electrode/gas certification subject to review?<br>Who is responsible for the receipt of electrodes and gases and for controlling their certification, is the responsibility defined in procedures?<br><br>Are individual batches of electrodes and gas cylinders identifiable and traceable to material certification?<br>Are electrodes handled to prevent damage, para 7.2?<br><br>Are low hydrogen electrodes controlled with respect to moisture content?<br>Are they vacuum packed or baked?<br>If baked what are the baking oven control requirements?<br>Are baking oven measuring instruments calibrated? <br>Are any quivers used controlled?<br>What happens to returned electrodes?<br>

Nonconforming Materials:<br> <br>Are nonconforming materials subject to identification and where practical segregation.<br>Are 'nonconformance reports' raised.<br>Are nonconformance’s reviewed by authorised personnel<br>Are appropriate disposition actions defined?<br>If there are any nonconforming materials on site are they controlled in accordance with defined requirements?<br>Do documented procedures define nonconforming material control requirements?<br>

Concessions:<br>Does the contractor have a concessions procedure?<br>Are there records of concessions raised, are they in accordance with the procedure requirements?

Pipeline and AGI welding, record the following:<br><br>Welders names <br>Welding procedures used <br>Pipe ends are prepared in accordance with the procedure?<br>Weld being undertaken, i.e. pass number<br>Interpass welding temperature<br>Serial numbers of welding equipment used<br>Batch number(s) of electrodes used <br>Batch/ gas bottle serial numbers used<br>Welding parameters, e.g. current, voltage <br>Pipe/bend numbers subject to welding<br>Pipe/bend position and section number<br>

Heat Treatment:<br><br>Is pre and post weld heat treatment in accordance with the welding procedures?<br>Is the temperature measured adequately?<br>Do records define the heat treatment undertaken?<br>

NDT at welding locations, record the following:<br>Visual welding inspectors .<br>Radiographic equipment serial numbers <br>Names of Radiographers<br>Ultrasonic equipment serial numbers <br>Names of Ultrasonic examiners<br>Permanent magnet/Yoke serial numbers.<br>Names of MPI inspectors <br>Serial numbers of holiday testing equipment<br>Names of personnel undertaking Holiday testing<br>Does equipment have valid calibration labels attached?<br>NDT procedures in use are approved and current issue.<br>

Weld Repair, para 44 of P2<br><br>Check that pipes subject to weld repair are positively identified to define their status.<br>For pipes requiring weld repair ensure that the extent of the repair requirements have been defined.<br>Are weld repair requirements defined within documented procedures?<br>What inspection/testing is carried out on weld repairs?<br>Are there records available to show the extent and approval of completed weld repairs ?<br>Welders used are qualified for the repair welding?<br>

From information obtained check the following:<br><br>Welders, Welding inspectors, Radiographers, UT/MPI Inspectors and Coating Inspectors are approved.<br>From information obtained check the following:<br><br>Welders, Welding inspectors, Radiographers, UT/MPI Inspectors and Coating Inspectors are approved.<br>

Radiography (para 38 of P2):<br><br>Have 3 (minimum) test radiographs and all radiographic procedures been approved by National Grid?<br>Do radiographs show a ‘Reference No.' and IQI?<br>Do radiograph records show density (range 2.5 to 3.5 in parent metal adjacent to weld), IQI, and the interpretation result?<br>Is the IQI wire size in accordance with Table 8 of BGES/P2 ,3 wires?<br><br>Are unused films stored adequately, P2 ?<br>Are completed radiographs stored in accordance with documented procedures?<br>Is the Densitometer calibrated?<br>Do documented procedures define radiographic control requirements?<br>How is Radiographic equipment calibrated/controlled?

Ultrasonic Calibration (see question 20):<br><br>Are ultrasonic test sets and blocks calibrated?<br>Are ultrasonic probes calibrated on a daily basis?<br>Are there calibration procedures covering ultrasonic equipment/calibration blocks and probes?

Magnetic Particle Inspection (see question 20):<br><br>Are the results of MPI recorded.<br>Are 'Yokes' checked using a calibrated test weight.<br>Do documented procedures define MPI control requirements?

From information obtained check the following:<br><br>Are calibration/maintenance records available for the welding sets used.<br>Are calibration certificates/records available for the NDT equipment used.<br>Are records maintained in accordance with procedures?

Records:<br><br>Do documented procedures define control requirements for site welding records?<br>Does PTS identify the position of welded pipe and all inspections carried out?<br>How are weld records stored and maintained?<br>How long are records retained?<br>