How should an asset tag be linked to the equipment actually tested?

Why can the asset tag alone be insufficient?

A project tag identifies a position or function in the project records. The equipment occupying that position can change. Keep that project identity separate from the manufacturer identity and serial or other approved equipment identifier recorded during testing.

WBDG describes commissioning test data, submittal reviews and issue logs as linked documentation. Its submittal discussion includes substitutions and deviations. The worksheet below is our original method for making equipment identity visible within that evidence chain; it is not a WBDG requirement to use a universal serial-number format.

Sources: Whole Building Design Guide: Commissioning documents and test data reports

What belongs in an equipment-to-test identity record?

Build a row for each tested equipment configuration. Use the identifiers actually available in approved equipment records. If a device has no serial number, record the approved alternative identity and its source instead of inventing a serial.

What happens when the same tag is retained after replacement?

Illustrative example. A fictional generator position GEN-DEMO is tested with equipment identifier UNIT-A. A later approved substitution places UNIT-B at GEN-DEMO. The original test record remains a result for UNIT-A. The final equipment schedule now identifies UNIT-B, and the identity worksheet records the change and an open technical disposition.

Do not edit the old result to replace UNIT-A with UNIT-B. That would conceal what was tested. The commissioning owner must determine the affected evidence and any required work under the approved project process. A documentation team cannot decide that a replacement automatically passes or that every historical result automatically becomes unusable.

Keep the change approval separate from the test disposition. Approval to substitute equipment answers a procurement or design question; it does not by itself answer which commissioning results apply to the changed configuration.

How should the handover pack be checked?

Start from the final as-installed equipment schedule and follow each tag to the current equipment identity, applicable results and unresolved dispositions. Then perform the reverse check from each result to its actual equipment. This exposes results that are present in a folder but cannot be associated with the installed asset.

Preserve superseded identities and results with their status. Record unknown identity explicitly and request the supporting record from the responsible owner. Do not infer a serial from a neighbouring unit or treat a purchase order as proof of what was tested.

This is a documentation review, not a commissioning procedure or permission to operate equipment. Engineering sign-off is performed only by the registered engineer on the job. The commissioning owner controls acceptance under the approved plan.