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<p>This document specifies an alternating airflow method for the determination of the airflow resistance<sup>[5], [6]</sup> of porous materials for acoustical applications.</p>
<p>Determination of the airflow resistance based on static flow is described in ISO 9053‑1.</p>
Reģistrācijas numurs (WIID)
76744
Darbības sfēra
<p>This document specifies an alternating airflow method for the determination of the airflow resistance<sup>[5], [6]</sup> of porous materials for acoustical applications.</p>
<p>Determination of the airflow resistance based on static flow is described in ISO 9053‑1.</p>
