Porosity-Bendtsen module measures the air flow through paper and reports the result in Bendtsen porosity (ml/min).
Measuring range
| Porosity-B [ml/min] | 5–3000 |
| Meas. head diameter | 35.7 mm (1.41”) |
| Measuring pressure | 14.68 mbar (1.468 kPa, 0.213 psi) |
Measurement according to standards ISO 5636-5, TAPPI T460, JIS P 8117. Related standards: ASTM D726, APPITA AS 1301-420, CPPA D.14, BS 5926.