OtherHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: RAMSETE
Wall 25 cm rif173 + 5 cm bonded
PTB reference data
Original description
Wall 25 cm rif173 + 5 cm bonded
Material properties
Thickness: 25 cm, 5 cm
Application: wall
Mounting: bonded
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.71
Frequency values
αp nach ISO 11654
| f (Hz) | 63 | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|---|
| αp | 0.00 | 0.25 | 0.60 | 0.85 | 0.85 | 0.85 |
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Method (354): Measured