Acoustic IndexAcoustic Index

Absorber Linear Polar Lamella Absorber

Fural Soft Akustik Absorber Linear Polar

NRC 0.65–0.90

Ceiling
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Manufacturer

Fural Soft Akustik

Fural Soft Akustik is Fural's brand for sound absorbers: ceiling rafts, baffles, acoustic panels, wall absorbers, inserts for grid ceilings and the seamless acoustic plaster phonestop V, mostly made of melamine resin foam and PET. The products come from the former pinta acoustic, whose machines, test reports and many employees Fural took over.

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Documents

Acoustic datasheetTender textProduct informationTechnical leaflet

Description

Absorber Linear Polar is a PET (100% polyester) lamella absorber for ceilings with concrete core activation, with vertical absorber elements bonded into aluminium carrier profiles, either butt-jointed in continuous runs or with joints. The profiles are fixed in rows to the soffit, and as the elements cover only part of the ceiling area, they have little effect on the cooling performance of the slab; length, height and row spacing can be chosen to suit. Typical applications are offices and meeting rooms, educational buildings, and exhibition and assembly venues.

Technical data

Material: PET (100% polyester), single-material; extruded aluminium carrier profile, 157 in
Fire class (EN 13501-1): B-s1,d0 (EN 13501-1), applies to the uncoated white version
Certifications: Oeko-Tex Standard 100, Class 1
Colours: White; colour coating of visible faces and edges in RAL or NCS on request; carrier profile natural anodised (E6EV1), white (RAL 9016) or coated in a special colour

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 6 variants

NRC
0.90

Frequency values

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CompareValue
3.9 in lamella height, 2 in thickness3.9 in axis spacingNRC0.90
7.9 in lamella height, 2 in thickness7.9 in axis spacingNRC0.85
12 in lamella height, 2 in thickness12 in axis spacingNRC0.75
3.9 in lamella height, 2 in thickness5.9 in axis spacingNRC0.70
12 in lamella height, 2 in thickness16 in axis spacingNRC0.70
3.9 in lamella height, 2 in thickness7.9 in axis spacingNRC0.65

Test report: 1702-002-17

NRC: 0.90 (derived from ISO 354 lab data)

Institute: SG Bauakustik

Measurement date: 07/05/2017

Dimensions: 49 in long

Distance: 0 in suspension height

Terms of use
Measured values as a table (6 measurements)
Absorber Linear Polar Lamella Absorber: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upNRC100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
3.9 in lamella height, 2 in thickness · 3.9 in axis spacing · 0 in suspension height0.900.100.230.210.530.750.860.950.930.930.940.970.910.920.970.940.981.051.03
3.9 in lamella height, 2 in thickness · 5.9 in axis spacing · 0 in suspension height0.700.100.200.250.390.490.520.730.780.850.820.760.660.740.860.960.930.910.90
3.9 in lamella height, 2 in thickness · 7.9 in axis spacing · 0 in suspension height0.650.100.210.230.320.450.500.620.650.730.730.740.710.700.740.770.780.760.79
7.9 in lamella height, 2 in thickness · 7.9 in axis spacing · 0 in suspension height0.850.180.330.460.700.880.820.830.760.780.800.810.840.890.930.950.970.980.97
12 in lamella height, 2 in thickness · 12 in axis spacing · 0 in suspension height0.750.210.330.560.680.700.640.550.520.730.760.820.890.890.940.910.940.980.99
12 in lamella height, 2 in thickness · 16 in axis spacing · 0 in suspension height0.700.180.350.430.590.620.630.500.550.630.660.770.780.760.770.800.810.840.89
Measured values as a table (6 measurements)

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