GBPI N600T – Air Permeability Resistance Tester (Active Packaging Film)
- Specialized air permeability resistance tester for food deoxidizer sachets, desiccant pouches, and active packaging films
- Full testing compliance with GB/T 44587-2024, ISO 5636-5, and JIS P8117
- Measures standardized air transit duration across an extensive range of 6 to 12,000 s with 0.1 s resolution
- Adjustable differential testing pressure up to 100 kPa with high-resolution digital regulation (0.001 kPa)
- Standard circular test aperture of 6.42 cm2 with automated pneumatic clamping
- Critical quality control instrument to prevent deoxidizer packet oil staining and ensure controlled oxygen absorption kinetics
- Integrated color touchscreen controller with automatic statistical averaging, pressure curve display, and USB export
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The GBPI N600T is an advanced, automated air permeability resistance tester engineered to evaluate the gas transit duration, airflow resistance, and microporous permeability of active packaging films, food-grade deoxidizer sachets (oxygen scavengers), moisture desiccant pouches, and specialty breathable non-woven membranes. Built in strict conformity with premier national and international testing standards including GB/T 44587-2024 (packaging materials for food deoxidizers — test methods for air permeability) and ISO 5636-5, this computerized testing system delivers definitive quality control data for active packaging converters.
Food deoxidizers (oxygen absorber packets containing iron powder and activated carbon) rely on precisely calibrated microporous packaging films to scavenge residual oxygen from food packages while preventing the leakage of internal chemical contents or ingress of food oils. If the packaging film's air permeability is too low, the deoxidizer cannot absorb oxygen quickly enough to protect sensitive foodstuffs (such as pastries, nuts, and dried meats) from mold and oxidative rancidity; conversely, if the film is overly porous, powdered chemicals migrate outward or food fats soak inward, ruining the product. Operating as a differential pressure air permeability resistance tester, the GBPI N600T measures the exact time in seconds required for 100 mL of air to permeate the film under a calibrated differential pressure gradient.
High-Precision Differential Pressure & Wide Dynamic Range
The instrument features closed-loop electronic pressure regulation spanning 0 to 100 kPa with 0.001 kPa resolution, allowing technicians to program adjustable differential pressures (such as standard 0.05 MPa). High-sensitivity optical flow transducers record air transit times across a broad measurement spectrum of 6 to 12,000 seconds with 0.1-second precision.
Pneumatic Clamping & Airtight Sealing
Equipped with an automatic pneumatic clamping cylinder, the N600T seals specimens firmly over the standard 6.42 cm² circular aperture without manual operator force inconsistencies or edge air leaks.
With an intuitive color touchscreen interface, automated curve plotting, and direct USB data reporting, the N600T is an indispensable instrument for active packaging manufacturers, food processing plants, and food packaging inspection agencies.
GBPI N600T Air Permeability Resistance Tester – Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Test Principle | Differential Pressure Gas Permeation Timing (Transit duration per 100 mL air) |
| Applicable Standards | GB/T 44587-2024, ISO 5636-5, JIS P8117, ASTM D726 |
| Time Measurement Range | 6 ~ 12,000 s (High dynamic range for rapid and ultra-dense active barrier films) |
| Timing Measurement Resolution | 0.1 s (Electronic optical detection sensor) |
| Pressure Regulation Range | 0 ~ 100 kPa (Digital closed-loop PID pressure control) |
| Pressure Resolution & Accuracy | Resolution: 0.001 kPa; Accuracy: ±0.25% F.S. |
| Standard Differential Pressure | 0.05 MPa (Continuously adjustable to standard test specifications) |
| Effective Test Aperture Area | 6.42 cm² (Φ28.6 mm standard circular test head) |
| Specimen Dimensions | > 50 mm × 50 mm (Cut film pouches and continuous roll samples) |
| Specimen Clamping Mechanism | Pneumatic automatic cylinder clamping with airtight silicone sealing ring |
| Overall Dimensions | 450 mm (L) × 400 mm (W) × 300 mm (H) |
| Instrument Net Weight | Approximately 22 kg |
| Power Supply & Rating | 110 ~ 250 VAC, 50/60 Hz; Total Power: 100 W |
Key Features & Engineering Highlights
- Dedicated Active Packaging Standard: Engineered strictly to satisfy GB/T 44587-2024 for food deoxidizer sachet films.
- Broad Dynamic Timing Range: Measures gas transit times from 6 seconds up to 12,000 seconds per 100 mL with 0.1 s precision.
- High Differential Pressure Capacity: Operates at test pressures up to 100 kPa (standard 0.05 MPa) with 0.001 kPa resolution.
- Automated Pneumatic Sample Clamping: Eliminates manual clamping discrepancies and ensures airtight edge containment.
- Closed-Loop Micro-Pressure Stabilization: Fast-response electronic regulator prevents pressure drops during gas permeation.
- Intuitive Touchscreen Interface: Displays real-time test curves, automatic pass/fail threshold indication, and batch statistics.
- USB Data Export & Connectivity: Export test logs directly to USB flash drives for quality assurance audits and traceability.
Standard Package & Accessories
| Item Description | Quantity |
|---|---|
| GBPI N600T Air Permeability Resistance Tester Mainframe | 1 Unit |
| Standard Circular Test Aperture Fixture (6.42 cm²) | 1 Set |
| Precision Pneumatic Air Regulator & Gas Connection Tube | 1 Set |
| Pneumatic Foot Switch for Convenient Hands-Free Clamping | 1 Pc |
| Power Supply Cord & Safety Ground Lead | 1 Set |
| Operating Manual & Factory Calibration Certificate | 1 Set |
Target Industry Applications
Food Deoxidizer Packaging Films
Testing oxygen transmission kinetics and air resistance of multi-layer micro-perforated composite films used for food oxygen absorbers.
Desiccant & Silica Gel Sachets
Evaluating air permeability of Tyvek and non-woven breathable sachets used for pharmaceutical moisture desiccants.
Fresh Produce Breathable Films
Optimizing gas exchange rates in equilibrium modified atmosphere packaging (EMAP) films for fruits and fresh vegetables.
Specialty Porous Polymers & Foams
Assessing airflow resistance across open-cell polyurethane foams, microfiltration membranes, and acoustic venting barriers.