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 Gyptone Line4 slotted gypsum cassette
Gyptone Line4, RGK Line4
PTB reference data
Original description
Rigips Gyptone Line4 slotted gypsum cassette
Material properties
Manufacturer: Rigips GmbH
Thickness: 0.5 in
Wall distance: 1.8 in
Backing: acoustic non-woven
Surface: slotted
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 | 0.30 | 0.65 | 0.90 | 0.85 | 0.65 | 0.60 |
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| Compare | Value |
|---|---|
| NRC0.75 | |
| NRC0.60 |
NRC: 0.75 (derived from ISO 354 lab data)
Weight / density: 8 kg/m^2
Dimensions: 25 in x25 in
Application: Einlege- and verdeckte Montage, for Arbeiten im Zwischenraum demontierbar
Distance: 45
Measured values as a table (2 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 13 mm · 8 kg/m^2 · 45 · Einlege- and verdeckte Montage, for Arbeiten im Zwischenraum demontierbar · Platte white acrylbeschichtet, geschlitzte Lochung, 16 quadratische Felder each Platte, acoustic fleece rückseitig aufkaschiert | 0.60 | 0.15 | 0.30 | 0.65 | 0.80 | 0.55 | 0.40 |
| 13 mm · 8 kg/m^2 · 45 · Einlege- and verdeckte Montage, for Arbeiten im Zwischenraum demontierbar · Platte white acrylbeschichtet, geschlitzte Lochung, 16 quadratische Felder each Platte, acoustic fleece rückseitig aufkaschiert | 0.75 | 0.30 | 0.65 | 0.90 | 0.85 | 0.65 | 0.60 |
Measured values as a table (2 measurements)
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