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Delta LinearAlterné 12​/​20​/​66

Knauf

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Delta LinearAlterné 12​/​20​/​66

Nominal12/20/66
Materialplâtre
Perforation codeLinearAlterné 12/20/66
Perforation rate percent19.6
Absorption coefficients hzLM 60 - 200mm: 125Hz=0.60, 250Hz=0.85, 500Hz=0.85, 1000Hz=0.85, 2000Hz=0.70, 4000Hz=0.70, αw=0.80 (L) | Sans LM - 200mm: 0.45, 0.75, 0.85, 0.75, 0.55, 0.60, αw=0.65 (L) | LM 70 - 300mm: 0.60, 0.80, 0.85, 0.85, 0.70, 0.70, αw=0.80

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