Problem & answerC-01
ATP Swab Result CAUTION or FAIL
Likely causes
- Residue left on the surface
- Inadequate cleaning or rinsing
- Swab taken from a wet surface
- Contaminated swab or poor technique
How to fix it
- 1Do not release the equipment.
- 2Re-clean the surface.
- 3Re-swab and record the RLU result and surface ID.
- 4If it fails again, follow the out-of-specification procedure and investigate.
- 5Obtain QA approval before release.
It is fixed when
ATP result PASS against the site limit.
Stop it coming back
- Follow the validated cleaning method and swab technique.
Did this solve the problem?