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 perforated gypsum board 12-20-35
Rigiton 12-20-35
PTB reference data
Original description
Rigips Rigiton perforated gypsum board 12-20-35
Material properties
Manufacturer: Rigips GmbH
Wall distance: 2 in, 7.9 in
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.45
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.45 | 0.65 | 0.45 | 0.20 | 0.15 |
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| Compare | Value | |
|---|---|---|
| 50 | NRC0.45 | |
| 200 | NRC0.45 |
NRC: 0.45 (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 · Lochung round, unregelmäßig verteilt, Durchmesser 12 mm, 20 mm and 35 mm, Lochflächenanteil ca. 5,2% | 0.45 | 0.13 | 0.46 | 0.67 | 0.43 | 0.19 | 0.17 |
| 200 · Lochung round, unregelmäßig verteilt, Durchmesser 12 mm, 20 mm and 35 mm, Lochflächenanteil ca. 5,2% | 0.45 | 0.43 | 0.62 | 0.60 | 0.35 | 0.18 | 0.11 |
Measured values as a table (2 measurements)
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