TextileHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: RAMSETE
tight velvet curtains (C)
PTB reference data
Original description
tight velvet curtains (C)
Material properties
Application: curtain
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.28
Frequency values
αp nach ISO 11654
| f (Hz) | 63 | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|---|
| αp | 0.00 | 0.05 | 0.10 | 0.35 | 0.45 | 0.40 |
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Method (354): Measured