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CLF
Laminar crossflow-cabinet
Clean Air Techniek B.V.
UM-CLF-XX-EN05.doc
53
Appendix IV Measuring method air velocities
Requirements
The measurement of air velocities in the cabinet is performed according to manufacturer
specifications as described in chapter 9 on page 45.
Air velocities crossflow
•
Switch on the cabinet;
•
Measure the airspeeds in a rectangular grid with a distance between each measurement point
of no greater than 300 x 300 mm. The rectangular grid must be 150 mm away from each
side that encloses the filter.
•
Measure with an anemometer in a verticall plane at 150 mm from the HEPA filter
•
This measurement must be done for at least one minute on each position.