Quick answer
Specify the equipment and interfaces to be verified, approved test-document references, responsible personnel, witnesses, required records and acceptance authority before commissioning begins. Define the handover package and how unresolved findings will be closed. Separate equipment delivery, calibration, system testing and operational acceptance so a supplier's delivery note or a powered panel is not mistaken for a completed project.
Write an acceptance schedule, not just 'commissioning included'
Turn the contract wording into a list of deliverables and decisions. Identify the approved detector schedule, drawing revisions and cause-and-effect document that define the intended system. Ask the responsible engineer to approve the test plan and criteria before work starts, rather than deciding what counts as a pass after results arrive.
The UTAI commissioning guide explains the wider technical sequence. This article focuses on the procurement schedule: who supplies evidence, who witnesses it and who may accept the completed work.
Connect each deliverable to an acceptance decision
Populate this editorial matrix with named parties and approved document references before work starts. Each row needs a preparer, reviewer and evidence-based closure. Suggested roles are not a claim about services included in a UTAI quotation.
| Deliverable | Preparer | Reviewer to name | Acceptance evidence |
|---|---|---|---|
| Delivered equipment reconciliation | Supplier | Receiving and technical reviewers | Actual serials and variants match accepted schedule, or substitution is resolved |
| Installation completion record | Installing contractor | Project engineer | Reviewed record addresses the agreed drawing revision and deviations |
| Point-to-controller test package | Commissioning party | Designated technical witness | Identified point results meet approved criteria; failures are closed |
| Cross-system interface record | Controls integrator and system owner | Witnesses for both sides | Agreed boundary is demonstrated, not merely an outgoing signal reported |
| Final acceptance submission | Package coordinator | Authorized project acceptance owner | Required evidence reviewed; exact accepted scope and remaining restrictions recorded |
Describe test evidence without inventing procedures
Ask the approved plan to distinguish gas-response evidence, calibration where required, channel identification and the specified alarm or fault functions. Each record should identify the equipment, method reference, expected result, observed result and responsible person. Checks that were not performed should be visible, not absorbed into a general pass statement.
HSE's gas-detection guidance separately considers detector performance, linked protective devices and alarm response. This supports keeping those evidence categories distinct. It does not supply a commissioning procedure or Malaysian approval for this project.
Testing must be performed by competent personnel under the approved site arrangements. The purchase specification should identify who coordinates affected systems and safe work controls; it should not instruct contractors to improvise fault injection or bypass safety functions.
Define a handover package the facility can use
Request a final document index connecting detector tags, serial numbers, controller channels and drawing references. Include the applicable manuals, accepted configuration record, completed test reports and calibration records within the agreed scope. Require the format and language needed by the receiving facility team.
For Malaysian EPC or M&E work, clarify whether separate subcontractor reports must be assembled into one package. Name the person responsible for resolving inconsistent tags or document revisions. Also agree the maintenance contact, operating-response briefing and location where controlled records will be retained.
Close findings before declaring the agreed scope complete
Keep an outstanding-item register with the finding, affected equipment, responsible party, required evidence and target date. A failed or omitted check is not a pass. Any staged handover should identify its exact accepted scope and remaining restrictions, with disposition by the authorized project team.
Separate receipt of equipment from acceptance of the installed system and authorization for operation. Record the actual acceptance decision and date; do not invent reviewer signatures. For enquiries, keep the UTAI quotation page as the commercial route and state these deliverables explicitly rather than assuming local installation or calibration services are included.