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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 5 of 37
PTB · FabricNRC0.60–0.85
Création Baumann OLEG curtain fabric
PTB · FabricNRC0.55–0.85
Création Baumann PHANTOM curtain fabric
PTB · FabricNRC0.40–0.60
Création Baumann SCOTT curtain fabric
PTB · FabricNRC0.35–0.55
Création Baumann SENDAL UN curtain fabric
PTB · FabricNRC0.70–0.95
Création Baumann SIBELIUS curtain fabric
PTB · FabricNRC0.05–0.10
Création Baumann SINFONIA CS IV curtain fabric
PTB · FabricNRC0.25–0.55
Création Baumann SPECTRA vertical blind curtain
PTB · FabricNRC0.55–0.80
Création Baumann ULTRA 98 curtain fabric
PTB · FabricNRC0.45–0.75
Création Baumann USUS curtain fabric
PTB · FabricNRC0.55–0.85
Création Baumann VELLING curtain fabric
PTB · FabricNRC0.30–0.40
Création Baumann ARREZZO 99 curtain fabric
PTB · FabricNRC0.30–0.50
Création Baumann BASIC PLUS II LA/TI curtain fabric
PTB · FabricNRC0.60–0.90
Création Baumann BOHEME curtain fabric
PTB · FabricNRC0.70–0.95
Création Baumann CAVALLO curtain fabric
PTB · FabricNRC0.40–0.70
Création Baumann DIMMER curtain fabric
PTB · FabricNRC0.55–0.85
Création Baumann INDIANA II curtain fabric
PTB · FabricNRC0.55–0.80
Création Baumann LERIDA III curtain fabric
PTB · FabricNRC0.65–0.95
Création Baumann NATASCHA curtain fabric
PTB · FabricNRC0.55–0.80
Création Baumann PONTE curtain fabric
PTB · FabricNRC0.45–0.65
Création Baumann RIALTO curtain fabric
PTB · FabricNRC0.45–0.65
Création Baumann curtain fabric SENDAL DO
PTB · FabricNRC0.65–0.95
Création Baumann SERGEJ curtain fabric
PTB · FabricNRC0.65–0.90
Création Baumann Ultima III curtain fabric
PTB · FabricNRC0.60–0.80
Création Baumann UMBRIA II curtain fabric
PTB · FabricNRC0.45–0.65
Création Baumann curtain fabric UNIVERSAL III
PTB · WoodNRC0.55
Danzer Deweton acoustic panel Type A (Helmholtz resonator)
PTB · WoodNRC0.45
Danzer Deweton acoustic panel Type A (Helmholtz resonator) (series 2)
PTB · WoodNRC0.70
Danzer Deweton acoustic panel Type A (Helmholtz resonator) (series 3)
PTB · WoodNRC0.35–0.50
Deweton acoustic panel Type D (Helmholtz resonator), 4 mm slots
PTB · Reference surfaceNRC0.65
Davidson thickness=20 mm (Gal. Ferr.)
PTB · Reference surfaceNRC0.35
Davidson (impedance tube)
PTB · Reference surfaceNRC0.10
ceiling
PTB · WoodNRC0.40
Ceilings, 50 mm "Soundboard" (pressed wood curls with air gaps) on 25 mm studs
PTB · Reference surfaceNRC0.05
ceil. thi.=24 prestres. plates thi.=4 + brick bl. B type thi.=12
PTB · Reference surfaceNRC0.05
Ceiling thickness 28.5, prestressed plates thickness 4 + brick block B type thickness 16
PTB · Reference surfaceNRC0.05
Ceiling thickness = 24, prestressed plates thickness = 4 + polystyrene blocks thickness = 16
PTB · Mineral woolNRC0.50
Ceilings, 16 mm pressed mineral fiber board (fissured) 210 mm from ceiling
PTB · Reference surfaceNRC0.05
Ceiling thickness 25.5 cm, prestressed rafters and brick block Type A
PTB · Reference surfaceNRC0.05
ceiling thickness=21.5 prestressed rafters and brick block A type
PTB · Reference surfaceNRC0.05
Ceiling, thickness 25.5, prestressed rafters and brick block Type B
PTB · Reference surfaceNRC0.05
Ceiling thickness 22 mm, prestressed rafters and brick blocks Type B
PTB · Reference surfaceNRC0.05
Ceiling with sluggish framework, thickness=22 brick blocks, Type B
PTB · Reference surfaceNRC0.05
Ceiling with sluggish framework, thickness 25.5 mm, brick block Type B
PTB · OtherNRC0.65
Ceilings, 25 mm thick, against ceiling
PTB · Reference surfaceNRC0.05
Ceiling thickness=25.5 joisted floor and brick blocks Type A
PTB · Reference surfaceNRC0.05
Ceiling, thickness 21.5 cm, joisted floor and brick blocks Type A
PTB · Reference surfaceNRC0.05
Ceiling: 28.5 mm thick, 4 mm prestressed plates + 20 mm polystyrene blocks
PTB · OtherNRC0.85