11.07.2015 Views

ASTM 2178 and 2357 Explained

ASTM 2178 and 2357 Explained

ASTM 2178 and 2357 Explained

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Scope of the st<strong>and</strong>ards<strong>ASTM</strong> E<strong>2178</strong>-11 St<strong>and</strong>ard Test method forAir Permeance of Building Materialsa) Determine the air permeance of buildingmaterials at various pressure differentials withthe intent of determining an assigned airpermeance rate of the material at the referencepressure difference (DP) of 75 Pa.

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