A pressure vessel can be perfectly made and still be rejected at handover if nobody can prove which material it was built from or who welded it. Quality documentation is that proof. It is also one of the most common reasons handover drags on after the plant is running. Quality documentation for project handover covers the records QA/QC must produce, how they link together and how to build them during construction rather than after it.
The wider handover package, including vendor manuals, as-builts and operating documentation, is covered in managing handover documentation at project completion. The focus here is the quality records within it.
What is quality documentation?
Quality documentation is the set of records that proves materials, workmanship, inspection and testing met the project’s specifications and codes. It is usually compiled into quality dossiers organized by system, test pack, equipment item or area.
Why quality records delay handover
Owners accept facilities on evidence. When records are missing or inconsistent, acceptance waits, even if the plant is running well, and final payments and warranty start dates can wait with it.
Key quality records
| Record | What it proves | Typical source |
|---|---|---|
| Material certificates | Materials meet the specified grade and properties | Mills and suppliers |
| Material traceability records | Each item can be linked to its certificate | QC and stores |
| Welding procedure and welder qualifications | Welds were made by qualified welders to qualified procedures | Welding engineer and QC |
| Weld maps and weld logs | Every weld is identified, with welder, date and inspection status | QC |
| NDT reports | Welds were examined to the required extent and accepted | NDT contractor |
| Heat treatment charts | Heat treatment followed the procedure | Heat treatment contractor |
| Pressure test certificates | Systems were tested and accepted | QC and client |
| Inspection reports and ITP sign-offs | Each inspection step was completed | QC and client inspectors |
| Calibration certificates | Test equipment was in calibration when used | QC |
| Non-conformance reports and closures | Defects were corrected and accepted | QC |
| Coating records | Surface preparation and coating met specification | Coating inspectors |
The traceability chain
The most valuable thing quality documentation does is link records together. For piping, that chain runs from the material certificate and heat number, to the pipe or fitting, to the spool and weld numbers, to the welder and procedure, to the NDT and heat treatment results, to the test pack and pressure test. A break anywhere in that chain means part of the system cannot be proven. Weld maps and weld logs are what hold the chain together, which is why they need to be kept current from the first weld.
Building dossiers progressively
- Agree the dossier structure early, using the owner’s index and the same system and test pack boundaries as completions.
- File records as work is inspected, not at the end.
- Check completeness by test pack before each pressure test, so missing records are found while they can still be recovered.
- Review dossiers internally before submission, checking the traceability chain rather than just counting documents.
- Submit in stages for owner review, so comments arrive while the team is still on site.
Records completeness is also one of the criteria for system completion, as described in mechanical completion milestones for plant erection.
Completeness checks that work
- Every weld on the weld map appears in the weld log
- Every weld requiring NDT has an accepted report
- Every welder in the log held a valid qualification on the weld date
- Every material in the system traces to a certificate
- Every test was performed with equipment in calibration
Simple cross-checks like these find gaps that a page-by-page review misses.
Electronic quality records
Many projects now manage quality records in databases linked to completions systems. The data, such as weld numbers, welder IDs and NDT results, can then be checked automatically for gaps. Paper scans alone do not allow this.
The ITP steps that generate these records are described in inspection and test plans for industrial construction, and shop-side traceability in fabrication quality controls that prevent field delays. Apex Core Engineering provides QA/QC document controllers and completions staff through its project support services, as part of its wider QA/QC services.
Frequently asked questions
What is a quality dossier?
A compiled set of quality records for a system, equipment item or area, proving that materials, workmanship, inspection and testing met requirements.
What is a weld log?
A record of every weld with its number, location, welder, procedure, date and inspection and NDT status.
Why are quality records often late at handover?
Because they are compiled at the end rather than as work is inspected, and gaps found late are hard to fill once teams have demobilized.
Get support with quality documentation from Apex Core Engineering.