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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 17 of 37
PTB · GypsumNRC0.45–0.50
Knauf D 127 acoustic design panel, scattered perforation Plus
PTB · GypsumNRC0.60–0.65
Knauf D 127 acoustic design panel, ball-impact resistant
PTB · GypsumNRC0.60–0.70
Knauf acoustic design panel D 127, ball-impact resistant (series 2)
PTB · GypsumNRC0.55–0.60
Knauf Akustikdesignplatte D 127, perforated
PTB · GypsumNRC0.75–0.85
Knauf D 127 acoustic design panel, perforated drywall, 12/25Q, 23%
PTB · GypsumNRC0.75–0.80
Knauf D 127 acoustic panel, perforated gypsum board, 12/20/66 R
PTB · GypsumNRC0.55–0.60
Knauf Akustikdesignplatte D 127, perforated gypsum board (series 2)
PTB · GypsumNRC0.65
Knauf acoustic design panel D 127, perforated gypsum board (series 3)
PTB · GypsumNRC0.50–0.60
Knauf Acoustic Design Panel D 127, perforated drywall (series 4)
PTB · GypsumNRC0.50–0.55
Knauf D 127 acoustic design panel, perforated drywall, 6/18 R, 8.7% open area (series 5)
PTB · GypsumNRC0.50–0.55
Knauf D 127 acoustic design panel, perforated drywall, 8/15/20 R, 9.9% (series 6)
PTB · GypsumNRC0.70–0.75
Knauf D 127 acoustic design panel, perforated gypsum board with mineral fiber
PTB · GypsumNRC0.55–0.60
Knauf D 127 acoustic design panel, perforated drywall, impact-resistant
PTB · Plaster & sprayNRC0.35–0.40
Knauf P 142 acoustic plaster, gypsum-bound
PTB · GypsumNRC0.75–0.80
Knauf D 127 acoustic design panel 8/18Q
PTB · GypsumNRC0.60
Knauf D 127 acoustic design panel, block-pattern round holes 8/18R, Design B5
PTB · GypsumNRC0.60
Knauf D 127 acoustic design panel, perforated gypsum board
PTB · GypsumNRC0.75–0.80
Knauf D 127 acoustic design panel, perforated gypsum board (series 2)
PTB · GypsumNRC0.60–0.65
Knauf D 127 acoustic design panel, perforated gypsum board (series 3)
PTB · GypsumNRC0.50–0.60
Knauf D 127 acoustic panel, perforated drywall 8/18 Q, 19.8% open area
PTB · GypsumNRC0.70
Knauf D 127 perforated gypsum board with mineral fiber
PTB · GypsumNRC0.60
Knauf D 127 perforated gypsum board with mineral fiber (series 2)
PTB · GypsumNRC0.60–0.65
Knauf D 127 perforated drywall panel, ball-impact resistant
PTB · GypsumNRC0.65–0.70
Knauf D 127 slotline B4 slotted gypsum board acoustic panel
PTB · GypsumNRC0.55–0.60
Knauf D 127 slotline B4 slotted gypsum board
PTB · GypsumNRC0.55
Knauf D 127 slotline B5 acoustic design panel
PTB · GypsumNRC0.65
Knauf D 127 slotline B5 slotted gypsum board
PTB · GypsumNRC0.75
Knauf D 127 slotline B6 slotted gypsum board with mineral fiber
PTB · GypsumNRC0.55–0.60
Knauf D127 slotline B6 slotted gypsum board
PTB · Mineral woolNRC0.55–0.90
Fiberglass acoustical blanket, max width: 96 inch, max length: 125 ft
PTB · Mineral woolNRC0.70–0.85
Knauf Fiber Glass duct wrap Type KN
PTB · Mineral woolNRC0.80–1.15
Fiberglass blanket, max width: 72 inch, max length: 150 inch
PTB · Mineral woolNRC0.75
Air duct board, one side faced with foil-scrim-Kraft vapor retarder
PTB · Mineral woolNRC0.45–0.90
Duct liner, matte facing
PTB · Mineral woolNRC0.55–0.95
Fiberglass insulation board, unfaced
PTB · Mineral woolNRC0.65–0.95
Rigid plenum liner
PTB · Mineral woolNRC0.60
Knauf Mineralfaserplatte KMF mineral fiber panel
PTB · GypsumNRC0.65–0.70
Knauf Perlgips-Kassette perforated 4520 07-08, 8/12 mm holes, 10.5%
PTB · GypsumNRC0.60
Knauf Perlgips cassette, perforated 6/18 with mineral fiber
PTB · GypsumNRC0.65–0.75
Knauf Perlgips perforated gypsum tile with mineral fiber, 8 mm holes
PTB · GypsumNRC0.45–0.55
Knauf Perlgips perforated board 6/18 (straight-drilled perforation)
PTB · GypsumNRC0.55–0.60
Knauf Perlgips perforated panel 6/18 with mineral fiber mat
PTB · GypsumNRC0.70
Knauf Perlgips perforated gypsum board, straight-drilled 10/23
PTB · GypsumNRC0.65–0.70
Knauf Perlgips perforated board, staggered perforation 8/12/36
PTB · GypsumNRC0.70
Knauf Perlgips perforated drywall, straight-drilled perforation 15/30
PTB · GypsumNRC0.65–0.70
Knauf Perlgips perforated panel, Helmholtz absorber
PTB · GypsumNRC0.70
Knauf Perlgips perforated gypsum board, staggered perforation 12/20/46
PTB · GypsumNRC0.40–0.45