GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: PLASTER9, C: Ceilings, D: Perf.
Ceilings, perf. 27 mm gypsum board (16%), d = 4.5 mm 300 mm from ceiling
PTB reference data
Original description
Ceilings, perf. 27 mm gypsum board (16%), d = 4.5 mm 300 mm from ceiling
Material properties
Thickness: 27 mm
Wall distance: 300 mm
Perforation: 16%
Hole size: 4.5 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.69
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.55 | 0.60 | 0.90 | 0.85 | 0.75 |
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Method (354): Measured