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<p>This document specifies the aerosol production, the test equipment and the test methods used for measuring fractional efficiency and air flow resistance of air filters for general ventilation.</p>
<p>It is intended to be used in conjunction with ISO 16890‑1, ISO 16890‑3 and ISO 16890‑4.</p>
<p>The test method described in this document is applicable for air flow rates between 0,25 m<sup>3</sup>/s (900 m<sup>3</sup>/h, 530 ft<sup>3</sup>/min) and 1,5 m<sup>3</sup>/s (5 400 m<sup>3</sup>/h, 3 178 ft<sup>3</sup>/min), referring to a test rig with a nominal face area of 610 mm × 610 mm (24.0 inches × 24.0 inches).</p>
<p>This document refers to particulate air filter elements for general ventilation having an <em>e</em>PM<sub>1</sub> efficiency less than or equal to 99 % and an <em>e</em>PM<sub>10</sub> efficiency greater than 20 % when tested as per the procedures defined within the ISO 16890 series.</p>
<p>NOTE The lower limit for this test procedure is set at a minimum <em>e</em>PM<sub>10</sub> efficiency of 20 % since it is very difficult for a test filter element below this level to meet the statistical validity requirements of this procedure.</p>
<p>This document is not applicable to filter elements used in portable room-air cleaners.</p>
Reģistrācijas numurs (WIID)
79591
Darbības sfēra
<p>This document specifies the aerosol production, the test equipment and the test methods used for measuring fractional efficiency and air flow resistance of air filters for general ventilation.</p>
<p>It is intended to be used in conjunction with ISO 16890‑1, ISO 16890‑3 and ISO 16890‑4.</p>
<p>The test method described in this document is applicable for air flow rates between 0,25 m<sup>3</sup>/s (900 m<sup>3</sup>/h, 530 ft<sup>3</sup>/min) and 1,5 m<sup>3</sup>/s (5 400 m<sup>3</sup>/h, 3 178 ft<sup>3</sup>/min), referring to a test rig with a nominal face area of 610 mm × 610 mm (24.0 inches × 24.0 inches).</p>
<p>This document refers to particulate air filter elements for general ventilation having an <em>e</em>PM<sub>1</sub> efficiency less than or equal to 99 % and an <em>e</em>PM<sub>10</sub> efficiency greater than 20 % when tested as per the procedures defined within the ISO 16890 series.</p>
<p>NOTE The lower limit for this test procedure is set at a minimum <em>e</em>PM<sub>10</sub> efficiency of 20 % since it is very difficult for a test filter element below this level to meet the statistical validity requirements of this procedure.</p>
<p>This document is not applicable to filter elements used in portable room-air cleaners.</p>
