GypsumBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data im Internet
Value from the PTB table, not verified
illbruck Rigiton perforated panel with acoustic non-woven
Rigiton perforated panel with acoustic non-woven 8/18
PTB reference data
Original description
illbruck Rigiton perforated panel with acoustic non-woven
Material properties
Manufacturer: illbruck GmbH
Thickness: 0.5 in
Wall distance: 2 in, 7.9 in
Hole size: 0.3 in
Backing: acoustic non-woven
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 3 variants
NRC
0.60
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.30 | 0.65 | 0.85 | 0.60 | 0.45 |
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| Compare | Value | |
|---|---|---|
| 50 | NRC0.60 | |
| 50 | NRC0.60 | |
| 200 | NRC0.70 |
NRC: 0.60 (derived from ISO 354 lab data)
Measured values as a table (3 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 12,5 mm · 10 kg/m^2 · 50 · Lochdurchlaufende Verlegung durch Fugenverklebung · Lochung round, regelmäßig, Durchmesser 8 mm, Lochabstand 18 mm, Lochflächenanteil15,5% | 0.60 | 0.13 | 0.28 | 0.64 | 0.89 | 0.55 | 0.31 |
| 50 | 0.60 | 0.16 | 0.30 | 0.67 | 0.86 | 0.59 | 0.46 |
| 12,5 mm · 10 kg/m^2 · 200 · Lochdurchlaufende Verlegung durch Fugenverklebung · Lochung round, regelmäßig, Durchmesser 8 mm, Lochabstand 18 mm, Lochflächenanteil15,5% | 0.70 | 0.44 | 0.78 | 0.96 | 0.55 | 0.51 | 0.35 |
Measured values as a table (3 measurements)
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