Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktdatenblatt des Herstellers
Value from the PTB table, not verified
Herafon basic stone wool ceiling tile
Herafon basic
PTB reference data
Original description
Herafon basic stone wool ceiling tile
Material properties
Manufacturer: Deutsche Heraklith GmbH
Thickness: 1 in, 1.6 in
Wall distance: 12 in
Surface: finely structured visible surface made of glass veil
Application: ceiling
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.90
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 0.85 | 0.90 | 0.95 | 0.95 | 1.00 |
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| Compare | Value | |
|---|---|---|
| 1.6 in | NRC0.90 | |
| 1 in | NRC0.90 |
NRC: 0.90 (derived from ISO 354 lab data)
Weight / density: 70 kg / m³
Dimensions: 625 / 1250 x 25 in
Application: Deckenplatte for Abhängekonstruktion in sichtbaren T-Profilen
Distance: 12 in
Measured values as a table (2 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 25 mm · 70 kg / m³ · 300 mm · Deckenplatte for Abhängekonstruktion in sichtbaren T-Profilen · Platte white or schwarz | 0.90 | 0.45 | 0.80 | 0.85 | 0.90 | 0.95 | 1.00 |
| 40 mm · 70 kg / m³ · 300 mm · Deckenplatte for Abhängekonstruktion in sichtbaren T-Profilen · Platte white or schwarz | 0.90 | 0.55 | 0.85 | 0.90 | 0.95 | 0.95 | 1.00 |
Measured values as a table (2 measurements)
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