Differential pressure |
Primary or secondary containment |
Replacement of CL-3 fans, duct, air valves |
Air flow |
Communication system |
Replacement or repair of control wiring |
Air flow turnover |
Access security systems and limitations |
Changes in building control sequences |
High-efficiency particulate air filter certified (photometric control filters in the extraction) |
Respirators, space suits |
Structural changes |
Environmental parameters (noise, temperature, humidity, lighting) |
Sensors, alarms |
Frequent failures of HVAC system/inoperable HVAC alarms |
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Supply exhaust interlocking system failure/reversals of airflow under normal conditions |
Autoclaves and other pressure vessels |
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Standby power and UPS systems |
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Operation of interlocking doors |
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Operation of decontamination systems (e.g., autoclaves, fumigation chambers, liquid effluent) |
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Liquid effluent treatment systems |
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Battery driven emergency lights |
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