Standard Methods of Characterizing Performance of Fan Filter Units, Version 3.x

This publication is an update of the draft standard laboratory method previously developed and published to evaluate fan-filter (FFU) operation.

This updated document includes the newly refined standard laboratory method, with the addition of test procedures, modeling methods, and a reporting form to characterize the functionality, operation, and control of individual fan filter units. The standard methods benefit from a review of open literature on relevant industrial and international standards, recommended practices, publications, and guidelines. This new document builds upon past work, and integrates new knowledge gained from experiments that were designed and conducted at Lawrence Berkeley National Laboratory (LBNL).