Flow resistance

The AcoustiFlow^® flow resistance meter can be used to determine the length-related flow resistance r [Pa s/m²] or the specific flow resistance Rs [Pa s/m].

The measuring device is a cylindrical sample holder in which the flow resistance is tested by means of static air flow.

Possible materials:

Insulation inserts
Fabrics and carpets
Perforated sheets and plate materials

Technical data

Sample diameter

Approx. 100 mm

Number of specimens

Min. 3 pcs.

Relevant standards and guidelines

Determination of flow resistance - Static air flow method

DIN EN ISO 9053-1:2018

Possible tests

r → linear flow resistance

R_s → flow resistivity