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Technical Information
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- Containment Testing for Occupied and Unoccupied Laboratory Chemical Hoods
- ASHRAE Symposium Paper CH1 1-99-9-1
A report on the result of an experiment in which hoods of different sizes with several sash positions are used and face velocities of occupied and unoccupied hoods are compared to see what effect human attendance has on containment ability of hoods.
- The Effect of Room Air Challenge on the Efficiency of Laboratory Fume Hood (RP-70)
- ASHRAE Transaction Volume 83.
A report on the result of an experiment where the air current is artificially disturbed to see how the turbulence in the air (room air challenge) affects containment ability of the test hood for varying face velocities.
- Some Observations on Aerodynamic Types of Laboratory Fume Hoods
- Ventilation '91 Conference Bengt Ljungqvist
A paper describing some methods to measure fume hoods' containment performance and their applications by giving examples of the cases where the methods are used to evaluate containment values of a same hoods for varying conditions and where they are used to compare the performances of some different types of hoods.
- The Low Constant Volume Cupboard: How Low Is Safe?
- International Labmate Robert K. Haugen, PhD.
A report on what is the lowest limit of the face velocity for constant airflow small-sized hoods enough to ensure the safety of users.
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