A vacuum-bag leak check evaluates a process setup under its defined procedure. It does not directly measure the void content, mechanical properties or acceptance of the cured laminate. Keep the setup record and finished-part evidence separate.
State what was checked
Identify the tool or setup, procedure and the stage at which the observation was made. The relevant process documentation should define its method and criteria. A screenshot of a vacuum gauge without that context is too limited to explain the setup history.
Keep the later process history
A check made before processing describes that moment. The actual run and its records are further information. If the agreed order requires process traceability, specify which records are supplied and how they relate to the part or batch. Do not turn a proposed setup check into a claim that the complete processing cycle was performed correctly.
Ask the finished-part question separately
An appearance concern, dimensional issue or internal inspection requirement needs its relevant assessment. A setup leak check can be part of controlled manufacturing, but should not be relabelled as a direct laminate test. Equally, an acceptable finished-part observation should not be used to reconstruct missing process records. Agree both evidence scopes before production when they matter to release.
Further reading: Gurit: prepreg processing guide.