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Sound Absorption Coefficients
15
Flashcards
0/15
Open cell polyurethane foam, 25 mm thick
0.80
Carpet, medium pile, on concrete
0.30
Heavy velvet curtains, 500 g/m²
0.70
Acoustic ceiling tiles, 15 mm thick
0.50
Plastered brick wall
0.03
Felt material, 10 mm thick
0.60
Acoustic panel, mineral wool, 50 mm thick
0.95
6mm Glass window
0.18
Perforated metal panel, with backing
0.60
Brick wall, unpainted
0.03
Marble floor
0.01
Plywood panel, 12 mm thick
0.20
Concrete block, painted
0.10
Solid wood door, 40 mm thick
0.14
Fiberglass insulation, 100 mm thick
0.99
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