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RP-671 — Define a Fractional Efficiency Test Method That Is Compatible With Particulate Removal Air Cleaners Used in General Ventilation

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Report / Survey by ASHRAE, 1993

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Description

The Research Triangle Institute (RTI) has developed a new fractional filtration efficiency laboratory test method for air cleaners used in general ventilation. The method provides a reliable and accurate means of measuring air cleaner fractional efficiencies over the particle diameter size range of 0.3 to 10 µm.

The need for a fractional efficiency test comes from several sources: (1) the growing concern with indoor air quality (IAQ); (2) the fact that filtration efficiency is often highly particlesize dependent for particles <10 µm diameter; (3) limitations of the current ASHRAE efficiency test (52.1-92 and its predecessor 52-76) which, by design, cannot differentiate between particle size; and (4) that respirable particles are generally classified as those <10-µm diameter.

Implementation of the new method will provide several benefits to the air cleaner community.

Product Details

Published:
1993
Number of Pages:
236
File Size:
1 file , 4.9 MB
Product Code(s):
D-RP-671