FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data unter http://www.illbruck-raumakustik.de, March 2001
Value from the PTB table, not verified
illbruck Absorber Plano T melamine foam element
illbruck Absorber Plano T
PTB reference data
Original description
illbruck Absorber Plano T melamine foam element
Material properties
Manufacturer: illbruck GmbH
Wall distance: 16 in, 24 in, 28 in
Mounting: free-hanging
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 3 variants
NRC
0.75
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.45 | 0.80 | 0.85 | 0.85 | 0.75 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | |
|---|---|---|
| free-hanging, Reihenmittenabstand 16 in | NRC0.75 | |
| free-hanging, Reihenmittenabstand 24 in | NRC0.65 | |
| free-hanging, Reihenmittenabstand 28 in | NRC0.60 |
NRC: 0.75 (derived from ISO 354 lab data)
Weight / density: 9...13 kg/m^3
Dimensions: 1200 x 600 x 2 in
Application: Elemente with T-Nut zur Suspension with einer 0.9 in T-Schiene
Measured values as a table (3 measurements)
| Build-up | NRC | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9...13 kg/m^3 · free-hanging, Reihenmittenabstand 400 mm · Elemente with T-Nut zur Suspension with einer 24 mm T-Schiene · offenporige Melaminharz-Schaumoberfläche | 0.75 | 0.15 | 0.22 | 0.30 | 0.38 | 0.44 | 0.52 | 0.70 | 0.84 | 0.85 | 0.86 | 0.87 | 0.87 | 0.87 | 0.87 | 0.85 | 0.80 | 0.76 | 0.75 |
| 9...13 kg/m^3 · free-hanging, Reihenmittenabstand 600 mm · Elemente with T-Nut zur Suspension with einer 24 mm T-Schiene · offenporige Melaminharz-Schaumoberfläche | 0.65 | 0.10 | 0.15 | 0.20 | 0.25 | 0.36 | 0.42 | 0.53 | 0.69 | 0.72 | 0.75 | 0.78 | 0.79 | 0.80 | 0.80 | 0.78 | 0.75 | 0.73 | 0.70 |
| 9...13 kg/m^3 · free-hanging, Reihenmittenabstand 720 mm · Elemente with T-Nut zur Suspension with einer 24 mm T-Schiene · offenporige Melaminharz-Schaumoberfläche | 0.60 | 0.10 | 0.15 | 0.18 | 0.23 | 0.30 | 0.35 | 0.43 | 0.63 | 0.65 | 0.70 | 0.76 | 0.78 | 0.75 | 0.68 | 0.69 | 0.70 | 0.71 | 0.70 |
Measured values as a table (3 measurements)
Access frequency bands, variants and export. Create a permanent free account
Last updated:
