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 12/25 perforated gypsum board, spacing 50/200 mm
Rigiton 12/25
PTB reference data
Original description
Rigips Rigiton 12/25 perforated gypsum board, spacing 50/200 mm
Material properties
Manufacturer: Rigips GmbH
Wall distance: 2 in, 7.9 in
Perforation: 12/25
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.60
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.25 | 0.65 | 0.85 | 0.65 | 0.50 |
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| Compare | Value | |
|---|---|---|
| 50 | NRC0.60 | |
| 200 | NRC0.70 |
NRC: 0.60 (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, regelmäßig, Durchmesser 12 mm, Lochabstand 25 mm, Lochflächenanteil 18,1% | 0.60 | 0.08 | 0.27 | 0.66 | 0.87 | 0.64 | 0.48 |
| 200 · Lochung round, regelmäßig, Durchmesser 12 mm, Lochabstand 25 mm, Lochflächenanteil 18,1% | 0.70 | 0.40 | 0.77 | 0.90 | 0.58 | 0.56 | 0.38 |
Measured values as a table (2 measurements)
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