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Interpretation IC 52.2-2007-1 – June 26, 2010 (Refers to the requirements presented in ANSI/ASHRAE Standard 52.2-2007, Sections 8.1.1 and 8.1.2, regarding the determination of airflow rates for testing filters.)
Interpretation IC 52.2-2007-2 – April 15, 2013 (Refers to the requirements presented in ANSI/ASHRAE Standard 52.2-2007, Section 4.6.1, regarding particle counters.)