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PTB – Physikalisch-Technische Bundesanstalt
Reference data from the PTB database for sound absorption coefficients. These data provide a planning baseline and come from standardised measurements.
1,746 products
Page 19 of 37
PTB · Fabricαw0.25
Linen texture fabric, stretched smooth
PTB · Stone & concreteαw0.80
Liakustik Liapor sound absorber blocks for track construction
PTB · Woodαw0.35
Lignoform Perfoplatte 16/16 blind hole 12/3 (ball-impact resistant)
PTB · Woodαw0.70
Lignoform perforated MDF panel for gym walls
PTB · Woodαw0.65
Lignoform perforated gym panel, ball-impact resistant
PTB · Woodαw0.45–0.50
Lignoform Quadrillo Micro-Perfo wood panel
PTB · Woodαw0.65
Lignoform Quadrillo door elements with soft fiber core
PTB · Woodαw0.60–0.65
Lignoform Quadrillo-Compact acoustic panel
PTB · Woodαw0.65–0.75
Lignoform Quadrillo-Compact audio acoustic panel
PTB · Woodαw0.60
Lignoform Quadrillo ceiling tile with acoustic non-woven, spacing 150 mm
PTB · Woodαw0.60
Lignoform Quadrillo ceiling tile with acoustic non-woven, spacing 350 mm
PTB · Woodαw0.55–0.80
Lignoform Quadrillo-Sandwich acoustic panel
PTB · Woodαw0.60–0.70
Lignoform Quadrillo-Solo wood panel with acoustic non-woven
PTB · Plastic & filmαw0.05
Linoleum (Meyer, Kirchenakustik)
PTB · Reference surfaceαw0.15
linoleum (RAMSETE)
PTB · Reference surfaceαw0.05
Floors, linoleum on concrete
PTB · Reference surfaceαw—
Linoleum or vinyl stuck to concrete
PTB · Reference surfaceαw0.05
linoleum floor (m)
PTB · Reference surfaceαw0.05
Floors, linoleum directly on concrete
PTB · Stone & concreteαw1.00
Perforated brick with mineral fiber mat backing
PTB · Stone & concreteαw0.20
Perforated brick, 40% perforation ratio
PTB · Stone & concreteαw0.20
Perforated brick, 250 x 125 x 50 mm, glazed, 17% perforation ratio
PTB · Stone & concreteαw0.35
Perforated brick, glazed, with mineral fiber backing
PTB · Reference surfaceαw0.20
Ventilation grille (approx. per sq. m.)
PTB · Reference surfaceαw0.35
ventilation openings
PTB · Reference surfaceαw0.15
Ventilation pipes
PTB · Metalαw1.00
Luxalon 130 B perforated aluminum panel with mineral wool
PTB · Metalαw0.30
Luxalon 180 B aluminum panel with mineral wool backing
PTB · Metalαw1.00
Luxalon 180 B perforated aluminum panel with mineral fiber
PTB · Metalαw0.75
Luxalon 225 C perforated aluminum panels with acoustic non-woven
PTB · Metalαw1.00
Luxalon 80 B perforated aluminum panel with mineral fiber
PTB · Metalαw0.60
Luxalon 80 B aluminum panel with mineral fiber absorber
PTB · Metalαw0.70
Luxalon 80 B perforated aluminum sheet panels
PTB · Metalαw0.85
Luxalon CLIP-IN perforated metal cassette with mineral wool
PTB · Metalαw1.00
Luxalon LAY-IN/LAY-ON perforated metal cassette with mineral wool
PTB · Metalαw0.85
Luxalon LAY-IN/LAY-ON perforated metal cassette with mineral wool (series 2)
PTB · Woodαw0.90
M+G slotted panel made of plywood/fiberboard
PTB · Gypsumαw0.90
Maibach M 200 TS fiber absorber in gypsum board cassette
PTB · Woodαw0.65
MAkustik acoustic panel Type 13/3 MA04 slotted
PTB · Woodαw0.85
MAkustik acoustic panel Type 6/2 slotted
PTB · Woodαw0.80
MAkustik acoustic panel Type 6/2 MA04 slotted
PTB · Woodαw0.70
MAkustik Type 8/16 acoustic panel with mineral wool
PTB · Woodαw0.75
MAkustik acoustic panel Type 9/2, slotted
PTB · Woodαw0.45
MAkustik MA01 acoustic panel, 6 mm perforation, 11% open area, spacing 0 mm
PTB · Woodαw0.50
MAkustik MA01 acoustic panel, 6 mm perforation, 11% open area, spacing 320 mm
PTB · Woodαw0.70
MAkustik MA01 acoustic panel Type 8/16, spacing 170 mm
PTB · Woodαw0.75
MAkustik MA01 acoustic panel Type 8/16, spacing 320 mm
PTB · Woodαw0.50