GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data online at www.rigips.de, as of March 07
Value from the PTB table, not verified
Rigips Rigiton 12/25 Q perforated gypsum board
Rigiton 12/25
PTB reference data
Original description
Rigips Rigiton 12/25 Q perforated gypsum board
Material properties
Manufacturer: Rigips GmbH
Wall distance: 2 in, 7.9 in
Hole size: 0.5 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 | 0.40 | 0.70 | 0.90 | 0.65 | 0.70 | 0.55 |
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| Compare | Value | |
|---|---|---|
| 200 | NRC0.75 | |
| 50 | NRC0.65 |
NRC: 0.75 (derived from ISO 354 lab data)
Measured values as a table (2 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 50 | 0.65 | 0.10 | 0.34 | 0.69 | 0.88 | 0.78 | 0.64 |
| 200 | 0.75 | 0.42 | 0.70 | 0.92 | 0.64 | 0.68 | 0.53 |
Measured values as a table (2 measurements)
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