GypsumBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data online at www.rigips.de, as of April 01
Value from the PTB table, not verified
Rigips Rigiton Big Quattro 49 Gypsum Board
Rigiton Big Quattro 49
PTB reference data
Original description
Rigips Rigiton Big Quattro 49 Gypsum Board
Material properties
Manufacturer: Rigips GmbH
Thickness: 0.5 in
Wall distance: 2 in, 7.9 in
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.75
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.70 | 0.85 | 0.70 | 0.70 | 0.60 |
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| Compare | Value | |
|---|---|---|
| 200 | NRC0.75 | |
| 50 | NRC0.65 |
NRC: 0.75 (derived from ISO 354 lab data)
Weight / density: 7,5 kg/m^2
Dimensions: 91 in x 43 in
Application: Lochdurchlaufende Verlegung durch Fugenverklebung
Measured values as a table (2 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 12,5 mm · 7,5 kg/m^2 · 50 · Lochdurchlaufende Verlegung durch Fugenverklebung · Lochung quadratisch, 12 mm x 12 mm, Lochabstand 25 mm, Lochflächenanteil in der gelochten Fläche 22,1%, regelmäßig | 0.65 | 0.15 | 0.35 | 0.65 | 0.85 | 0.75 | 0.60 |
| 12,5 mm · 7,5 kg/m^2 · 200 · Lochdurchlaufende Verlegung durch Fugenverklebung · Lochung quadratisch, regelmäßig, 12/25 | 0.75 | 0.35 | 0.70 | 0.85 | 0.70 | 0.70 | 0.60 |
Measured values as a table (2 measurements)
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