Clean Bench Testing

Clean Bench Testing and Maintenance

TSS offers comprehensive testing, certification and maintenance of unidirectional flow devices (also known as laminar flow units or clean benches). Our skilled technicians are authorized to perform warranty repairs for all major equipment manufacturers. All testing is performed in accordance with established TSS SOPs, which are updated to remain compliant with federal and international safety guidelines, current good manufacturing practices [cGMPs], and our own ISO 9001 certified quality system.

Clean Bench Testing

Clean bench testing is performed in accordance with IEST and manufacturers' specifications.

Primary tests include:

  • HEPA filter integrity testing – documents leakage or defects and demonstrates that no contamination will enter the work area through the supply filter
  • Airflow velocity profile – documents the air in the work area is unidirectional and performing as designed, preventing cross contamination
  • Light testing – ensures fluorescent lighting levels are sufficient to prevent operator fatigue and UV lighting operates adequately

Optional tests include:

  • Non-viable particle counting – performed in accordance with ISO 14644-1 or EC Annex 1 and reports the amount of particulate, if any, within the work zone
  • Vibration testing – ensures product is not subject to damage due to vibration
  • Sound testing – verifies hood operation/usage will not contribute to worker fatigue

Make TSS your first call for all your controlled environment needs. Contact us at 800-877-7742, or directly at our nearest regional office, to discuss your specific needs and to schedule service.