FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data unter http://www.illbruck-raumakustik.de
Value from the PTB table, not verified
illbruck WHITELINE ceiling system made of melamine foam
WHITELINE
PTB reference data
Original description
illbruck WHITELINE ceiling system made of melamine foam
Material properties
Manufacturer: illbruck GmbH
Thickness: 0.4 in
Wall distance: 12 in, 3.9 in
Up to fire class: B1 according to DIN 4102 (not easily flammable)
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.65
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.50 | 0.55 | 0.70 | 0.75 | 0.80 |
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| Compare | Value | |
|---|---|---|
| 12 in | NRC0.65 | |
| 3.9 in | NRC0.50 |
NRC: 0.65 (derived from ISO 354 lab data)
Weight / density: 9,5 kg / m³
Dimensions: 625 x 25 in, 1250 x 25 in
Measured values as a table (2 measurements)
| Build-up | NRC | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 mm thickness der Dämmstoffschicht · 9,5 kg / m³ · 300 mm · glatt, white | 0.65 | 0.13 | 0.29 | 0.45 | 0.55 | 0.55 | 0.54 | 0.54 | 0.57 | 0.62 | 0.71 | 0.73 | 0.74 | 0.75 | 0.79 | 0.81 | 0.83 |
| 10 mm thickness der Dämmstoffschicht · 9,5 kg / m³ · 100 mm · glatt, white | 0.50 | 0.15 | 0.16 | 0.18 | 0.21 | 0.26 | 0.39 | 0.49 | 0.60 | 0.66 | 0.72 | 0.66 | 0.63 | 0.62 | 0.63 | 0.66 | 0.72 |
Measured values as a table (2 measurements)
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