WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Value from the PTB table, not verified
Hanging panels of 1 inch Tectum, spaced 24 inches face to face (series 3)
PTB reference data
Original description
Hanging panels of 1 inch Tectum, spaced 24 inches face to face (series 3)
Material properties
Manufacturer: Tectum
Thickness: 1 inch
Wall distance: 24 inches face to face
Mounting: Hanging panels
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.40
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.20 | 0.30 | 0.50 | 0.65 | 0.90 |
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Value from the PTB table, not verified
NRC: 0.40 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 1 inch · 1.6 lb/ft² | 0.40 | 0.12 | 0.20 | 0.29 | 0.49 | 0.65 | 0.91 |
Measured values as a table (1 measurement)
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