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ASHRAE 52.2-2007. 2010 Round Robin 2011 Round Robin.

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Presentation on theme: "ASHRAE 52.2-2007. 2010 Round Robin 2011 Round Robin."— Presentation transcript:

1 ASHRAE

2 2010 Round Robin

3 2011 Round Robin

4 Issues under Review by Task Groups Current MERV boundaries Humidity Range OPC particle counter specifications Air density calculation Shedding IPA vapor conditioning Test variability

5 Reported Values Channel E1E2E3 Reporting Value Particle Size Range.3 to 11 to 33 to 10 Filter 1 37%65%84%MERV 8 Filter 2 36%65%85%MERV 11

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13 Issues under Review by Task Groups Current MERV boundaries Humidity Range OPC particle counter specifications Air density calculation Shedding IPA vapor conditioning Test variability

14 Fig. 8 ASHRAE 1287 RP

15 0% to 85% RH

16 Other Potential Issues Test dust Specifications for particle generator Radioactive versus corona discharge in neutralization of airstream Initial resistance calibration


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