Gurley
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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 | 4171 |
| Power Supply | 110/220 V, 50/60 Hz |
| Display | Digital (LCD) |
| Output Units | mg, sin θ (1.0–7.0), or mN·m (via conversion formula) |
| Sample Capacity | Flat specimens — L 25.4–114.3 mm, W 1.27–50.8 mm, T ≤ 6.35 mm |
| Angular Adjustment | 0°–180° in 15° increments |
| Interface | RS-232 (4171-ET variant) |
| Compliance | ASTM D747, ISO 2493, TAPPI T823, GB/T 22895 |
| Brand | Gurley |
|---|---|
| Origin | USA |
| Model | 4171 |
| Compliance | ASTM D743, TAPPI T820, ISO 2431 |
| Display | Digital (LCD) |
| Operation Mode | Semi-automatic |
| Interface | RS-232 (4171-ET variant) |
| Sample Clamping | Dual-mode — flat specimen clamp (max. thickness 6.35 mm, width 1.27–50.8 mm, length 25.4–114.3 mm) and tubular specimen holder (0°–180° rotational, 15° increments) |
| Force Range | Adjustable via 60 configurable combinations of specimen length, pendulum mass, and mass position |
| Readout Units | Scale units (1.0–7.0), mg-force, or convertible to mN·m (via standardized conversion formula) |
| Data Handling | 100-point memory, auto-averaging, programmable upper/lower limits with audible alert |
| Calibration | Built-in self-check function |
| Enclosure | Rugged carrying case included |
| Optional Accessories | Moisture electrodes (2E, 12E, 15E, 19E, 43E, 55E, 830, H3) |
| 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 |
| 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 |