GBPI N530L Gas Permeability Tester for Food Packaging
| Brand | GBPI |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GBPI N530L |
| Price | ¥368,000 |
| Test Principle | Differential Pressure Method |
| Standards Compliance | GB/T 1038, ISO 2556, ISO 15105-1, ASTM D1434, JIS K7126-1, YBB 00082003 |
| Measurement Range | 0.05–50,000 cm³/(m²·24 h·0.1 MPa) (expandable to 600,000 cm³/(m²·24 h·0.1 MPa)) |
| Resolution | 0.0001 cm³/(m²·24 h·0.1 MPa) |
| Temperature Control Range | 15–60 °C |
| Temperature Stability | ±0.2 °C |
| Vacuum Level | <20 Pa |
| Vacuum Resolution | 0.01 Pa |
| Test Pressure | 0.1 MPa |
| Test Gases | O₂, CO₂, N₂, air, He |
| Test Area | 50.24 cm² |
| Specimen Size | Ø110 mm |
| Max Specimen Thickness | ≤2 mm |
| Specimen Capacity | 3 independent chambers |
| Dimensions | 690 × 620 × 390 mm |
| Weight | 55 kg |
| Power | 750 W |
| Supply | AC 220 V, 50 Hz |
Overview
The GBPI N530L Gas Permeability Tester is a precision differential pressure–based instrument engineered for quantitative determination of gas transmission rates (GTR) through packaging materials and finished packages. It operates on the fundamental principle of Fick’s first law of diffusion under a controlled pressure gradient: a test specimen is sealed between two isolated chambers; the upstream chamber is pressurized with the test gas (e.g., O₂, CO₂, or N₂) at 0.1 MPa, while the downstream chamber is maintained under high vacuum (<20 Pa). The resulting transmembrane pressure differential drives gas permeation, and the accumulation rate of gas in the downstream chamber—monitored continuously by a high-resolution pressure sensor (0.01 Pa)—is used to calculate gas permeability, permeance, and transmission rate in standardized units (cm³/(m²·24 h·0.1 MPa)). This method conforms rigorously to internationally recognized standards including ISO 2556, ASTM D1434, and GB/T 1038, ensuring data comparability across global laboratories and regulatory submissions.
Key Features
- Triple independent test chambers: Enables simultaneous, parallel testing of up to three specimens—identical or dissimilar—with fully decoupled pressure control, real-time individual monitoring, and independent data logging. Eliminates sequential bottlenecks and improves throughput without compromising measurement integrity.
- Patented auto-pressure-differential maintenance system: Dynamically adjusts upstream gas supply to sustain a user-defined constant pressure gradient across the specimen—critical for minimizing transient drift and enhancing repeatability, especially for ultra-low-permeability barrier films.
- High-fidelity environmental control: Dual-direction semiconductor thermoelectric cooling/heating ensures stable temperature regulation from 15 °C to 60 °C with ±0.2 °C uniformity across all chambers, meeting stringent requirements for accelerated aging studies and comparative thermal dependence analysis.
- Ultra-high vacuum capability: Equipped with an original imported vacuum pump achieving ultimate vacuum <0.1 Pa, enabling accurate quantification of gases with low solubility and diffusivity (e.g., He, N₂) and reducing background interference in low-flux measurements.
- Modular gas configuration support: Compatible with O₂, CO₂, N₂, air, and He via standardized 1/8″ and 1/4″ fittings. Optional gas purification modules (e.g., oxygen scrubbers, moisture traps) can be integrated for pharmacopeial-grade testing per USP <671> and EP 2.9.18.
Sample Compatibility & Compliance
The N530L accommodates flat sheet materials—including monolayer and multilayer polymer films (PET, PE, PP, BOPP, CPP, PLA, PBAT), metallized foils, paperboard, coated papers, rubber sheets, and pharmaceutical hard PVC/PP blisters—as well as rigid and flexible packaged goods (e.g., PET bottles, aluminum cans, stand-up pouches, thermoformed trays, laminated tubes) using optional fixture kits. All sample handling complies with GLP and GMP Annex 11 requirements: hardware interlocks prevent erroneous chamber opening during pressurization; leak-tight sealing is verified automatically prior to each run; and material contact surfaces are constructed from 316 stainless steel and fluoropolymer-sealed elastomers to ensure chemical inertness and cleanability. Instrument validation documentation supports IQ/OQ/PQ protocols aligned with FDA 21 CFR Part 11 and EU Annex 11.
Software & Data Management
The embedded Windows-based control software features role-based access control (administrator, analyst, reviewer), full electronic audit trail (time-stamped entries for parameter changes, calibration events, user logins, and report generation), and configurable electronic signatures compliant with 21 CFR Part 11 Subpart C. Test sequences are programmable with conditional logic (e.g., “hold temperature for 30 min before initiating gas flow”), and raw pressure vs. time datasets are stored in vendor-neutral CSV and XML formats. Reporting templates adhere to ISO/IEC 17025 clause 7.8: reports include uncertainty budgets derived from sensor calibration certificates (traceable to NIM, China), environmental logs, and pass/fail flags against user-defined specification limits. Data export supports LIMS integration via OPC UA and HL7 interfaces.
Applications
- Quantitative shelf-life modeling of food packaging via O₂ transmission rate (OTR) and CO₂ transmission rate (CTR) under ambient and accelerated conditions.
- Verification of barrier performance for sterile medical device packaging per ISO 11607-1 and AAMI TIR17.
- Regulatory submission support for pharmaceutical primary packaging (e.g., blister foil, cold-forming foil) per ICH Q5C and USP <671>.
- Development and QC of sustainable packaging: biodegradable films (PLA, PHA), nanocomposite barriers, and SiOx/AlOx coated substrates.
- Root-cause analysis of package failure modes—e.g., seal integrity loss, coating delamination, or moisture-induced permeability shifts—using comparative multi-gas testing.
FAQ
What calibration standards are supplied with the N530L?
GBPI provides certified reference materials traceable to the National Institute of Metrology (NIM), China, including GBW(E)130541 and GBW(E)130542—certified gas permeability standards for polyethylene and ethylene-vinyl alcohol copolymer films. Calibration is performed pre-shipment and documented in the Certificate of Conformance.
Can the instrument be validated for regulated pharmaceutical use?
Yes. The system includes full IQ/OQ documentation templates, 21 CFR Part 11–compliant software architecture, and audit-trail-enabled operation. Optional qualification services include installation at client site with third-party witnessed PQ under ISO/IEC 17025-accredited procedures.
Is testing of irregularly shaped packages supported?
Yes. With optional custom fixtures (e.g., bottle cradles, pouch clamps, cup adapters), the N530L measures gas transmission through complete sealed packages—not just flat films—enabling real-world performance assessment per ASTM F2622 and ISO 15105-2.
What maintenance intervals are recommended?
Vacuum pump oil replacement every 3,000 operating hours; O-ring inspection and lubrication quarterly; pressure sensor recalibration annually or after any impact event. GBPI offers remote diagnostics and on-site service contracts with SLA-backed response times.
