Start with the requirement, not the test name
A useful quality plan begins with the failure mode the specification is trying to prevent. Appearance, adhesion, corrosion resistance, cure, dielectric performance and weathering are different requirements and should not be treated as interchangeable.
- Define the exact test method and revision when required
- State the acceptance limit
- Define sampling frequency or lot size
- Identify whether results must be recorded, certified or witnessed
Common coating checks
- Visual appearance, colour, gloss and coverage
- Dry-film thickness
- Cure or solvent-resistance verification
- Adhesion testing
- Accelerated corrosion or humidity exposure
- UV/weathering tests when specified
Match documentation to project risk
The RFQ should define whether the project needs routine process records, lot-specific inspection results, certificates, photographs, third-party laboratory reports or customer witness points.