OtherHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: MINERALWOOL2, C: Ceilings, D: 50
Ceiling tiles, 50 mm thick, against ceiling
PTB reference data
Original description
Ceiling tiles, 50 mm thick, against ceiling
Material properties
Thickness: 50 mm
Mounting: mounted directly on ceiling
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.75
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.55 | 0.90 | 1.00 | 1.00 | 0.95 |
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Method (354): Measured