ASTM 2178 and 2357 Explained
ASTM 2178 and 2357 Explained
ASTM 2178 and 2357 Explained
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Step by step review 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 Materials• Minimum of 5 samples to be tested;• At six differential pressures ranging from25 Pa to 300 Pa (0,52 psf to 6,25 psf);• The air permeance rate of the material at thereference pressure difference (DP) of 75 Pais determined by curve fitting of the test data(30 data points).
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