Asona SOUNDBLOX Type B Helmholtz Resonator
Helmholtz Resonator – SOUNDBLOX Type B
NRC 0.90
PTB reference data
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Stone & concreteHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data unter http://asonad.de, Feb. 2001
Value from the PTB table, not verified
Original description
Asona SOUNDBLOX Type B Helmholtz Resonator
Material properties
Manufacturer: Asona Deutschland GmbH
Fire class (EN 13501-1): F-180
Application: masonry
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.90
derived from ISO 354 lab data
Frequency values
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Value from the PTB table, not verified
NRC: 0.90 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz | 6300 Hz | 8000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measurement 1 | 0.90 | 0.48 | 0.75 | 0.80 | 1.00 | 1.15 | 1.15 | 1.00 | 0.85 | 0.78 | 0.85 | 0.95 | 0.90 | 0.75 | 0.65 | 0.65 | 0.72 | 0.75 | 0.70 | 0.58 | 0.60 |
Measured values as a table (1 measurement)
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