Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktdatenblatt des Herstellers
Value from the PTB table, not verified
Deutsche Heraklith Herafon plan stone wool ceiling tile
Herafon plan
PTB reference data
Original description
Deutsche Heraklith Herafon plan stone wool ceiling tile
Material properties
Manufacturer: Deutsche Heraklith GmbH
Thickness: 1 in
Wall distance: 9.8 in, 12 in
Surface: finely structured glass veil facing
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.95
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.90 | 0.90 | 1.00 | 1.00 | 1.00 |
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| Compare | Value | |
|---|---|---|
| 9.8 in | NRC0.95 | |
| 12 in | NRC0.95 |
NRC: 0.95 (derived from ISO 354 lab data)
Weight / density: 100 kg / m³
Dimensions: 600 / 625 / 1200 / 1250 x 600 / 625
Application: Deckenplatte for Abhängekonstruktion in sichtbaren T-Profilen
Measured values as a table (2 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 25 mm · 100 kg / m³ · 250 mm · Deckenplatte for Abhängekonstruktion in sichtbaren T-Profilen · Vliesbeschichtung (white) | 0.95 | 0.61 | 0.91 | 0.91 | 1.00 | 1.00 | 1.10 |
| 25 mm · 100 kg / m³ · 300 mm · Deckenplatte for Abhängekonstruktion in sichtbaren T-Profilen · Vliesbeschichtung (white) | 0.95 | 0.64 | 0.98 | 0.89 | 0.97 | 1.03 | 1.13 |
Measured values as a table (2 measurements)
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