AFMS that offer Validation and certification of Fume hoods in accordance with safety standards and guidelines provided by organizations like ANSI and ASHRAE, manufacturers requirements and local regulations. These standards and guidelines play a crucial role in ensuring the safety and compliance of fume hoods.
The validation of fume hoods is a critical process to ensure their proper functioning and to maintain a safe laboratory environment. Fume hoods are designed to protect laboratory personnel from exposure to harmful chemicals and fumes, and their validation involves assessing various aspects of their performance.
Here are some key steps and considerations that AFMS performs to ensure the safety and best functionality of fume hoods.
Key steps and considerations
Face Velocity Measurement:
Measure and verify the face velocity of the fume hood. Face velocity is the speed at which air is drawn into the hood. It is typically measured in m/s.
Smoke Visualization Test:
Perform a smoke visualization test to observe the airflow patterns inside the fume hood. Ensure that the smoke is effectively captured and directed into the exhaust system without any recirculation into the laboratory.
Alarm Systems and Safety Features:
Check the functionality of any alarm systems and safety features integrated into the fume hood. Ensure that alarms for low face velocity or other safety concerns are working correctly.
Sash Movement and Stability:
Verify the smooth operation and stability of the sash (the transparent front panel of the fume hood). Ensure that the sash can be properly positioned and securely held in place.
Airflow Monitor Calibration:
Calibrate airflow monitors regularly to ensure accurate readings. Airflow monitors help to continuously monitor and maintain the proper face velocity.
Housing and Interior Cleaning:
The interior of the FFU housing should be cleaned to remove any accumulated dust or particles. This helps maintain the cleanliness of the controlled environment and prevents contaminants from being introduced into the space.
Face Velocity Measurement:
Measure and verify the face velocity of the fume hood. Face velocity is the speed at which air is drawn into the hood. It is typically measured in m/s.
Smoke Visualization Test:
Perform a smoke visualization test to observe the airflow patterns inside the fume hood. Ensure that the smoke is effectively captured and directed into the exhaust system without any recirculation into the laboratory.
Alarm Systems and Safety Features:
Check the functionality of any alarm systems and safety features integrated into the fume hood. Ensure that alarms for low face velocity or other safety concerns are working correctly.
Sash Movement and Stability:
Verify the smooth operation and stability of the sash (the transparent front panel of the fume hood). Ensure that the sash can be properly positioned and securely held in place.
Airflow Monitor Calibration:
Calibrate airflow monitors regularly to ensure accurate readings. Airflow monitors help to continuously monitor and maintain the proper face velocity.
