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WALL PANEL SOUND ABSORPTION

WALL PANEL SOUND ABSORPTION
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WALL PANEL SOUND ABSORPTION

Product catalog summary
Overview: This document details the measurement of sound absorption in a reverberation room according to ISO 354:2003, conducted by the Laboratory for Acoustics. The principal is Aktav Acoustics, and the tests involve Parmephon wall panels of different thicknesses.
Specifications:
  • Panel Type 1: Parmephon wallpanel 20 mm
  • Material: Glasswool
  • Panel Size: 1200 x 600 mm
  • Total Thickness: 20 mm
  • Finish Front: Glasstissue + fabric
  • Finish Back: Glass tissue
  • Finish Edges: Plastered
  • Total Mass: 2.4 kg/m2
  • Panel Type 2: Parmephon wallpanel 40 mm
  • Total Thickness: 40 mm
  • Finish Edges: Plastered with a groove
  • Total Mass: 6.5 kg/m2
Testing Conditions:
  • Volume of Reverberation Room: 214 m3
  • Surface Area Sample: 10.8 m2
  • Height of Construction: 0.060 m for 20 mm panel, 0.080 m for 40 mm panel
  • Measured At: Laboratory conditions
  • Bandwidth: 1/3 octave
  • Signal: Broad-band noise
Results:
  • 20 mm Panel:
    • Sound Absorption Coefficient (ISO 11654): 0.75 (MH)
    • Noise Reduction Coefficient (NRC, ASTM C423): 0.85
  • 40 mm Panel:
    • Sound Absorption Coefficient (ISO 11654): 1.00
    • Noise Reduction Coefficient (NRC, ASTM C423): 0.95
Frequency Response:
  • 20 mm Panel: Frequencies tested at 125, 250, 500, 1k, 2k, 4k Hz with varying absorption coefficients.
  • 40 mm Panel: Similar frequency range with higher absorption coefficients.
Conclusion: The 40 mm panel demonstrates superior sound absorption properties compared to the 20 mm panel, as indicated by higher sound absorption coefficients and NRC values.
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Catalog excerpts

WALL PANEL SOUND ABSORPTION-1

pEUTZ MEASUREMENT OF SOUND ABSORPTION IN A REVERBERATION ROOM ACCORDING TO ISO 354:2003 principal: Aktav Acoustics m TESTING RvA L 3341 Absorb versie 4.3.1, mode 7 file: a 1597 E#:800-835 F#:947-982 A#:983 Ti = 16,2 °C T2= 16,1 °C p, = 102,3 kPa p2 = 102,2 kPa h, = 50,1 % h2 = 48,6 % type: Parmephon® wallpanel 20 mm manufacturer: Aktav Acoustics material: glasswool finish front: glasstissue + fabric finish back glass tissue finish edges plastered volume reverberation room: 214 m surface area sample: 10,8 m2 heigth of the construction: 0,060 m measured at: laboratory conditions signal: broad-band noise bandwidth: 1/3 octave a* (ISO 11654) = 0,75(MH) NRC (ASTM - C423) = 0,85 adhesive tape test specimen - fl'oor of the reverberation room publication is permitted for the entire page only

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WALL PANEL SOUND ABSORPTION-2

MEASUREMENT OF SOUND ABSORPTION IN A REVERBERATION ROOM ACCORDING TO ISO 354:2003 principal: Aktav Acoustics ®L JESTING RvA 1 3341 Absorb versie 4.3.1, mode 7 file: al597 E#:800-835 F#:873-908 A#:909 T, = 16,2 °C T2= 15,9 °C p, = 102,3 kPa p2 = 102,3 kPa h, = 50,1 % h2= 53,0 % type: manufacturer: material: panel sizes: total thickness: finish front: finish back finish edges total mass: Parmephon® wallpanel 40 mm Aktav Acoustics glasswool 1200 x 600 mm 40 mm glasstissue + fabric glass tissue plastered with a groove 6,5 kg/m2 volume reverberation room: 214 m3 surface area sample: 10,8 m2 heigth...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.