WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 213
Value from the PTB table, not verified
M+G slotted panel made of plywood/fiberboard
M + G slotted panel
PTB reference data
Original description
M+G slotted panel made of plywood/fiberboard
Material properties
Manufacturer: Meyer + Gerber
Thickness: 3 - 0.2 in
Backing: fiber absorber
Surface: color-sprayed or paintable, veneer of choice
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.85
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.70 | 0.90 | 0.95 | 0.90 | 0.75 |
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Value from the PTB table, not verified
NRC: 0.85 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 - 6 mm · Der Schallschluckgrad ist von der Art and Stärke des hinterlegten Absorptionsmaterials sowie der freien Schlitzfläche abhängig | 0.85 | 0.25 | 0.34 | 0.45 | 0.60 | 0.71 | 0.80 | 0.85 | 0.92 | 0.93 | 0.95 | 0.96 | 0.95 | 0.92 | 0.90 | 0.85 | 0.79 | 0.73 | 0.70 |
Measured values as a table (1 measurement)
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