Convert Frazier (cfm/ft²) to Bendtsen (mL/min)
1 Frazier (cfm/ft² at 125 Pa) (cfm/ft² @125 Pa) = 3584.448 Bendtsen millilitres per minute (mL/min (Bendtsen)). 1 mL/min (Bendtsen) = 0.0002789829843 cfm/ft² @125 Pa. Example: 15 cfm/ft² @125 Pa = 15 × 3584.448 = 53766.72 mL/min (Bendtsen).
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1 cfm/ft² @125 Pa = 3584.448 mL/min (Bendtsen)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk Frazier to Bendtsen converter to paste a column from Excel.
How to Convert Frazier (cfm/ft²) to Bendtsen (mL/min)
- 1 cfm/ft² @125 Pa = 3584.448 mL/min (Bendtsen)
- 1 mL/min (Bendtsen) = 0.0002789829843 cfm/ft² @125 Pa
- Example: convert 15 cfm/ft² @125 Pa to mL/min (Bendtsen): 15 cfm/ft² @125 Pa = 15 × 3584.448 mL/min (Bendtsen) = 53766.72 mL/min (Bendtsen)
Reference conditions. cfm/ft² @125 Pa: Measured at 125 Pa (0.5 inH₂O) as in ASTM D737; assumes flow proportional to pressure difference. mL/min (Bendtsen): 10 cm² test area at 1.47 kPa (ISO 5636-3); assumes flow proportional to pressure difference.
Formula
mL/min (Bendtsen) = cfm/ft² @125 Pa × 3584.448
Derivation from SI units:
- 1 cfm/ft² = 0.00508 m/s; at 125 Pa that is 0.00508 ÷ 125 = 4.064 × 10⁻⁵ m/(Pa·s) = 40.64 µm/(Pa·s).
- Bendtsen reads mL/min through 10 cm² at 1.47 kPa: 1 mL/min ÷ (10 cm² × 1.47 kPa) = 0.011338 µm/(Pa·s).
- 1 cfm/ft² @125 Pa = 40.64 µm/(Pa·s) ÷ 0.01133786848073 µm/(Pa·s) per mL/min (Bendtsen) = 3584.448 mL/min (Bendtsen)
One unit is a measured value, so the factor is approximate. Frazier (cfm/ft²) definition: Frazier (cfm/ft² at 125 Pa); Bendtsen (mL/min) definition: Bendtsen millilitre per minute.
Worked examples
- A reading of 5 cfm/ft² @125 Pa converts to 17922.24 mL/min (Bendtsen).
5 cfm/ft² @125 Pa × 3584.448 = 17922.24 mL/min (Bendtsen) - A value of 50 cfm/ft² @125 Pa is 179222.4 mL/min (Bendtsen).
50 cfm/ft² @125 Pa × 3584.448 = 179222.4 mL/min (Bendtsen)
Frazier (cfm/ft²) to Bendtsen (mL/min) conversion table
| Frazier (cfm/ft²) (cfm/ft² @125 Pa) | Bendtsen (mL/min) (mL/min (Bendtsen)) |
|---|---|
| 0.5 cfm/ft² @125 Pa | 1792.224 mL/min (Bendtsen) |
| 1 cfm/ft² @125 Pa | 3584.448 mL/min (Bendtsen) |
| 2 cfm/ft² @125 Pa | 7168.896 mL/min (Bendtsen) |
| 5 cfm/ft² @125 Pa | 17922.24 mL/min (Bendtsen) |
| 10 cfm/ft² @125 Pa | 35844.48 mL/min (Bendtsen) |
| 20 cfm/ft² @125 Pa | 71688.96 mL/min (Bendtsen) |
| 50 cfm/ft² @125 Pa | 179222.4 mL/min (Bendtsen) |
| 100 cfm/ft² @125 Pa | 358444.8 mL/min (Bendtsen) |
| 200 cfm/ft² @125 Pa | 716889.6 mL/min (Bendtsen) |
| 500 cfm/ft² @125 Pa | 1792224 mL/min (Bendtsen) |
Where it's used
Frazier (cfm/ft²) are used for woven and nonwoven filter media, while Bendtsen millilitres per minute appear in european paper mill quality control. Both measure air permeance (air flow per unit area per unit pressure difference), so the conversion is a fixed factor.
Frazier (cfm/ft²) to other air permeance units
| Conversion | 1 cfm/ft² @125 Pa equals |
|---|---|
| Frazier to Bendtsen | 3584.448 mL/min (Bendtsen) |
| Frazier to micrometre per pascal second | 40.64 µm/(Pa·s) |
| Frazier to Gurley second | 3.126991894 s/100 mL |
| Frazier to millimetre per second at 100 Pa | 4.064 mm/s @100 Pa |
| Frazier to millimetre per second at 200 Pa | 8.128 mm/s @200 Pa |
Frequently asked questions
How many Bendtsen millilitres per minute are in 1 Frazier (cfm/ft² at 125 Pa)?
1 cfm/ft² @125 Pa = 3584.448 mL/min (Bendtsen).
How do I convert Frazier (cfm/ft² at 125 Pa) to Bendtsen millilitres per minute?
Multiply the value in cfm/ft² @125 Pa by 3584.448. For example, 15 cfm/ft² @125 Pa × 3584.448 = 53766.72 mL/min (Bendtsen).
Is the cfm/ft² @125 Pa to mL/min (Bendtsen) conversion exact?
Not exactly. The Frazier (cfm/ft² at 125 Pa) is a measured value (Measured at 125 Pa (0.5 inH₂O) as in ASTM D737; assumes flow proportional to pressure difference.). The Bendtsen millilitre per minute is a measured value (10 cm² test area at 1.47 kPa (ISO 5636-3); assumes flow proportional to pressure difference.). Results are good to about 5 significant figures.
Sources
- ASTM D737 Standard Test Method for Air Permeability of Textile Fabrics, ASTM International .
- 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). Convert Frazier (cfm/ft²) to Bendtsen (mL/min). Retrieved October 29, 2026, from https://scientificconverters.com/air-permeance/frazier-to-bendtsen/
IEEE
Scientific Converters, "Convert Frazier (cfm/ft²) to Bendtsen (mL/min)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/air-permeance/frazier-to-bendtsen/