Bendtsen (mL/min) (mL/min (Bendtsen))
The Bendtsen tester measures the air flow, in mL/min, that leaks through 10 cm² of paper under 1.47 kPa (ISO 5636-3). It is common in Europe for printing and sack papers; unlike Gurley, a higher reading means a more open sheet.
Symbol: mL/min (Bendtsen) (ASCII: mL/min Bendtsen)
Quantity: air permeance (air flow per unit area per unit pressure difference)
SI relation: 1 mL/min (Bendtsen) = 0.01133786848073 µm/(Pa·s)
Derivation: Bendtsen reads mL/min through 10 cm² at 1.47 kPa: 1 mL/min ÷ (10 cm² × 1.47 kPa) = 0.011338 µm/(Pa·s).
Exact: no, measured or rounded value
Reference conditions. 10 cm² test area at 1.47 kPa (ISO 5636-3); assumes flow proportional to pressure difference.
Typical uses
- European paper mill quality control
- Printing and sack paper porosity
- Converting to Gurley for customers
Convert Bendtsen millilitres per minute to other units
| Conversion | 1 mL/min (Bendtsen) equals | Reverse |
|---|---|---|
| Bendtsen to micrometre per pascal second | 0.01133786848 µm/(Pa·s) | micrometre per pascal second to Bendtsen |
| Bendtsen to Gurley second | 11208.53984 s/100 mL | Gurley second to Bendtsen |
| Bendtsen to Frazier | 0.0002789829843 cfm/ft² @125 Pa | Frazier to Bendtsen |
| Bendtsen to millimetre per second at 100 Pa | 0.001133786848 mm/s @100 Pa | millimetre per second at 100 Pa to Bendtsen |
| Bendtsen to millimetre per second at 200 Pa | 0.002267573696 mm/s @200 Pa | millimetre per second at 200 Pa to Bendtsen |
Open the Gurley to Air Permeance Converter (Bendtsen, Frazier) to convert any value between all units.
Sources
- ISO 5636 Paper and board — Determination of air permeance (Part 3: Bendtsen method; Part 5: Gurley method), International Organization for Standardization , Part 3, Bendtsen method.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Bendtsen (mL/min) (mL/min (Bendtsen)). Retrieved October 29, 2026, from https://scientificconverters.com/units/bendtsen-milliliter-per-minute/
IEEE
Scientific Converters, "Bendtsen (mL/min) (mL/min (Bendtsen))," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/bendtsen-milliliter-per-minute/