Riboflavin Coverage Test
CIP systems are used in the pharmaceutical industry to clean one or more vessels in the manufacturing process.
2020-12-01
Key Takeaways:
- The riboflavin coverage test is a visual method to assess spray device effectiveness in clean-in-place (CIP) systems by detecting fluorescent residues under UV light.
- The test involves coating the vessel with a riboflavin solution, rinsing and inspecting under UV light, with any remaining fluorescence indicating inadequate spray coverage.
- Inadequate coverage can be corrected by repositioning or adding spray devices, and the test should be repeated until 100% coverage is achieved.
- Riboflavin is ideal for this application due to its strong fluorescence and safety profile, making it a reliable indicator for cleaning validation.
- This test supports equipment design verification and cleaning validation, ensuring that all internal surfaces receive adequate cleaning action during CIP cycles.



