Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 75
Value from the PTB table, not verified
Armstrong Celtic perforated mineral fiber acoustic panel, 15 mm
Celtic perforated
PTB reference data
Original description
Armstrong Celtic perforated mineral fiber acoustic panel, 15 mm
Material properties
Manufacturer: Armstrong Cork International GmbH
Thickness: 15 mm
Wall distance: 500 mm
Dimensions: 300 × 300 mm, 600 × 600 mm, 625 × 625 mm
Surface weight: 4.7 kg/m²
Surface: three-layer PVAC-based paint coating
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.65
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.40 | 0.65 | 0.70 | 0.60 | 0.55 |
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| Compare | Value |
|---|---|
| αw0.65 | |
| αw0.25 |
Weight / density: 4,7 kg / m²
Dimensions: 300 x 300, 600 x 600, 625 x 625, 600 x 1200 and 625 x 1250 mm
Distance: 500 mm
Measured values as a table (2 measurements)
| Build-up | αw | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 mm · 4,7 kg / m² · 500 mm | 0.65 | 0.30 | 0.37 | 0.35 | 0.37 | 0.40 | 0.42 | 0.58 | 0.65 | 0.72 | 0.73 | 0.72 | 0.70 | 0.65 | 0.60 | 0.57 | 0.55 | 0.53 | 0.53 | 0.53 |
| 15 mm · 4,7 kg / m² · 500 mm | 0.25 | 0.25 | 0.30 | 0.23 | 0.23 | 0.20 | 0.20 | 0.20 | 0.18 | 0.18 | 0.18 | 0.20 | 0.20 | 0.25 | 0.28 | 0.30 | 0.30 | 0.27 | 0.25 | 0.25 |
Measured values as a table (2 measurements)
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