ashrae 52.2-2007
DESCRIPTION
ASHRAE 52.2-2007. 2010 Round Robin. 2011 Round Robin. Issues under Review by Task Groups. Current MERV boundaries Humidity Range OPC particle counter specifications Air density calculation Shedding IPA vapor conditioning Test variability. Reported Values. - PowerPoint PPT PresentationTRANSCRIPT
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ASHRAE 52.2-2007
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2010 Round Robin
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2011 Round Robin
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Issues under Review by Task Groups
• Current MERV boundaries• Humidity Range• OPC particle counter specifications• Air density calculation• Shedding• IPA vapor conditioning• Test variability
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Reported Values
Channel E1 E2 E3 Reporting Value
Particle Size Range .3 to 1 1 to 3 3 to 10
Filter 1 37% 65% 84% MERV 8
Filter 2 36% 65% 85% MERV 11
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Issues under Review by Task Groups
• Current MERV boundaries• Humidity Range• OPC particle counter specifications• Air density calculation• Shedding• IPA vapor conditioning• Test variability
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Fig. 8 ASHRAE 1287 RP
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KCL @ 0% to 85% RH
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Other Potential Issues
• Test dust• Specifications for particle generator• Radioactive versus corona discharge in
neutralization of airstream• Initial resistance calibration