Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data im Internet
Value from the PTB table, not verified
RAS Raumakustik SAG-MA 1 broadband absorber
SAG-MA 1
PTB reference data
Original description
RAS Raumakustik SAG-MA 1 broadband absorber
Material properties
Manufacturer: RAS Raumakustik GmbH
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.85
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.50 | 0.85 | 0.95 | 0.95 | 0.85 | 0.70 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 80 Hz | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|---|
| Measurement 1 | 0.85 | 0.05 | 0.50 | 0.85 | 0.95 | 0.95 | 0.85 | 0.70 |
Measured values as a table (1 measurement)
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