Mineral woolHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 78
Value from the PTB table, not verified
Armstrong Ceramaguard Travertin mineral fiber acoustic panel
Ceramaguard Travertin
PTB reference data
Original description
Armstrong Ceramaguard Travertin mineral fiber acoustic panel
Material properties
Manufacturer: Armstrong Cork International GmbH
Thickness: 15 mm
Dimensions: 610 mm × 1220 mm
Surface: three-layer acrylate-based coating
Application: ceiling
Mounting: suspended metal grid
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.55
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.35 | 0.45 | 0.65 | 0.80 | 0.85 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 mm | 0.55 | 0.34 | 0.34 | 0.35 | 0.35 | 0.38 | 0.42 | 0.46 | 0.53 | 0.60 | 0.66 | 0.70 | 0.75 | 0.81 | 0.82 | 0.83 | 0.85 |
Measured values as a table (1 measurement)
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