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| Brand | Gurley |
|---|---|
| Origin | USA |
| Model | 4110N |
| Measuring Principle | Gravity-driven piston displacement (Gurley-type) |
| Test Area Options | 1.0, 0.25, or 0.1 in² |
| Standard Piston Weight | 20 oz (567 g) |
| Applied Pressure | 4.88 in H₂O (124 Pa) |
| Volume Displaced | 25–300 mL (incremental: 25 mL first, then 50 mL steps) |
| Measurement Range (Gurley Seconds) | 2.0–2000 s (for 100 mL air at 1.0 in²) |
| Optional Low-Permeability Configuration | 5 oz piston + 0.1 in² orifice |
| Optional High-Permeability Configuration | 5 oz piston + 1.0 in² orifice |
| Cylinder Diameter | 3 in (76.2 mm) |
| Net Weight | 12–17 lbs (5.4–7.7 kg) |
| Compliance | ASTM D737, ISO 9237, TAPPI T460, GB/T 5453 |
| Brand | Gurley |
|---|---|
| Origin | USA |
| Model | 4340 |
| Pressure Requirement | ≥40.5 psi |
| Units Supported | Gurley, Sheffield, Bendtsen, Bekk |
| Compliance | ASTM D726, TAPPI T460, ISO 5636-5, ISO 8791-2 |
| Measurement Principle | Constant-pressure air flow through porous sheet materials |
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | GDP-C |
| Pricing | Available Upon Request |
| Brand | Gurley |
|---|---|
| Origin | USA |
| Model | 4320 |
| Cylinder Weight | 20 oz |
| Test Area Options | 1.0, 0.25, or 0.1 in² |
| Applied Pressure | 4.88 in H₂O (1.2 kPa) |
| Air Volume Measured | 100 cm³ |
| Flow Time Range | 2.0–2000 s |
| Equivalent Gurley Seconds | 0.00156–25 s⁻¹ (calculated per ASTM D737) |
| Net Weight | 12–17 lbs |
| Compliance | ASTM D737, ISO 9237, TAPPI T460, GB/T 5453 |
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