Lightweight chipboard with porous hard foil and paper backing, 19 mm

PTB reference data

Original description

Material properties

Thickness: 19 mm

Wall distance: 50 mm

Surface weight: 6.1 kg/m²

Backing: paper backing on rear

Surface: painted porous hard foil on front

Flow resistance: 246 Rayl

Mounting: on 24/48 mm cross-battening

ISO 354 – reverberation chamber

α_w

0.60

α_p nach ISO 11654

f (Hz)	125	250	500	1k	2k	4k
α_p	0.20	0.40	0.60	0.75	0.60	0.55

Create a permanent free account — Access frequency bands, variants and export.

Free. No password required.

Value from the PTB table, not verified

Measured values as a table (1 measurement)

Lightweight chipboard with porous hard foil and paper backing, 19 mm: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	α_w	100 Hz	125 Hz	160 Hz	200 Hz	250 Hz	315 Hz	400 Hz	500 Hz	630 Hz	800 Hz	1000 Hz	1250 Hz	1600 Hz	2000 Hz	2500 Hz	3150 Hz	4000 Hz	5000 Hz	6300 Hz
19 mm · 6,1 kg/m^2 · 50 mm · Montiert on Kreuzlattung 24/48 mm, horizontaler Abstand 800 mm, vertikaler Abstand 625 mm, Air cavity 50 mm, Ränder der Prüffläche seitl. geschlossen · vorderseitig poröse Hartfolie lackiert	0.60	0.10	0.14	0.33	0.38	0.39	0.42	0.50	0.58	0.68	0.72	0.78	0.70	0.67	0.58	0.48	0.48	0.60	0.60	0.62

Measured values as a table (1 measurement)

Access frequency bands, variants and export. Create a permanent free account

Last updated: 02/09/2026