Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 174
Value from the PTB table, not verified
Isola mineral fiber sound-absorbing panel
Isola sound-absorbing panel
PTB reference data
Original description
Isola mineral fiber sound-absorbing panel
Material properties
Manufacturer: Isola-Mineralwolle-Werke
Thickness: 1.2 in
Wall distance: 2 in
Up to fire class: non-combustible
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.90
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.75 | 0.95 | 1.00 | 0.90 | 0.80 |
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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 mm · 180 kg / m³ · 50 mm · wahlweise einseitig rieselfest with fleece beschichtet | 0.90 | 0.33 | 0.48 | 0.49 | 0.70 | 0.74 | 0.85 | 0.93 | 0.98 | 0.98 | 0.99 | 0.97 | 0.99 | 0.92 | 0.81 | 0.90 | 0.85 | 0.83 | 0.76 | 1.03 |
Measured values as a table (1 measurement)
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