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
Rigiton perforated panel 12-20/66 with acoustic plaster and mineral wool
Rigiton perforated panel 12-20/66 with Scherff acoustic plaster
PTB reference data
Original description
Rigiton perforated panel 12-20/66 with acoustic plaster and mineral wool
Material properties
Manufacturer: Rigips GmbH
Thickness: 0.5 in
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
0.75
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.75 | 0.90 | 0.80 | 0.55 | 0.55 |
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| Compare | Value | |
|---|---|---|
| 40 | NRC0.75 | |
| 100 | NRC0.80 | |
| 400 | NRC0.80 |
NRC: 0.75 (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 | 0.75 | 0.36 | 0.77 | 0.91 | 0.78 | 0.54 | 0.57 |
| 12,5 mm · 10 kg/m^2 · 100 · Verlegung durch Fugenverklebung · runde Lochung 12-20/66 with ungelochtem Randbereich, Lochflächenanteil 19,6% in der gelochten Fläche | 0.80 | 0.46 | 0.91 | 0.97 | 0.71 | 0.57 | 0.58 |
| 400 | 0.80 | 0.57 | 0.91 | 0.97 | 0.71 | 0.57 | 0.58 |
Measured values as a table (3 measurements)
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