Plaster & sprayHighly 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 with acoustic plaster
Rigiton 12/25
PTB reference data
Original description
Rigips Rigiton 12/25 Q perforated gypsum board with acoustic plaster
Material properties
Manufacturer: Rigips GmbH
Wall distance: 1.6 in, 3.9 in, 16 in
Backing: 1.6 in mineral wool
Surface: Scherff acoustic plaster
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 3 variants
NRC
0.80
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.90 | 0.75 | 0.90 | 0.70 | 0.60 |
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| Compare | Value | |
|---|---|---|
| 400 | NRC0.80 | |
| 100 | NRC0.85 | |
| 40 | NRC0.80 |
NRC: 0.80 (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 |
|---|---|---|---|---|---|---|---|
| 40 | 0.80 | 0.29 | 0.66 | 1.00 | 0.96 | 0.62 | 0.53 |
| 100 | 0.85 | 0.39 | 0.79 | 1.00 | 0.85 | 0.71 | 0.55 |
| 400 | 0.80 | 0.59 | 0.88 | 0.77 | 0.91 | 0.72 | 0.59 |
Measured values as a table (3 measurements)
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