GBPI W403-G Water Vapor Transmission Rate (WVTR) Tester
| Brand | GBPI |
|---|---|
| Model | W403-G |
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Price Range | USD 1–9,999 |
| Testing Range | 0.001–100 g/m²·24h (films & sheets) |
| Test Accuracy | 0.001 g/m²·24h |
| Temperature Control Range | 15–45°C (optional up to 60°C) |
| Temp. Stability | ±0.1°C |
| Humidity Control Range | 0%RH (dry), 30–90%RH, 100%RH |
| Humidity Stability | ±1%RH |
| Test Area | 50.24 cm² (down to 0.785 cm² with optional fixtures) |
| Specimen Size | Φ100 mm |
| Max. Specimen Thickness | ≤2 mm |
| Sample Capacity | 1–3 specimens per test cycle |
| Carrier Gas | ≥99.999% N₂ (user-supplied) |
| Gas Pressure | ≥0.1 MPa |
| Gas Flow Rate | 5–120 mL/min |
| Gas Inlet | 1/8″ metal tube |
| Dimensions | 61 × 55 × 40 cm |
| Weight | 80 kg |
| Power | 750 W |
| Supply | AC 220 V, 50 Hz |
| Compliance | GB/T 26253-2010, YBB 00092003-2015, BS EN ISO 15106-2:2005, ASTM F1249-2013, JIS K7129-2008 |
Overview
The GBPI W403-G Water Vapor Transmission Rate (WVTR) Tester is a gravimetric-coupled, dual-stream humidity-controlled instrument engineered for precise, reproducible measurement of water vapor permeation through packaging materials and functional barriers. It operates on the principle of dynamic relative humidity gradient generation across a specimen—using separate dry and humid gas streams—to establish a controlled water vapor partial pressure differential. The transmitted vapor is quantified via high-stability infrared detection, enabling trace-level mass flux determination in real time. Designed for regulatory-grade testing environments, the system meets stringent requirements for pharmaceutical primary packaging (e.g., blister lidding, pouches), medical device barrier films, solar backsheet laminates, OLED encapsulation layers, and high-barrier flexible electronics substrates. Its architecture supports both static and dynamic equilibrium methodologies per international standards, ensuring data traceability and metrological integrity.
Key Features
- Triple-Independent Test Chambers: Three fully isolated sensor modules enable concurrent, asynchronous testing of up to three specimens—including heterogeneous materials—with independent start/stop, parameter control, and report generation.
- High-Resolution Gravimetric Detection: Integrated infrared moisture sensors calibrated against NIM-certified national standard reference materials (GBW(E)130543/4), delivering measurement resolution down to 0.001 g/m²·24h and inter-test repeatability <5% RSD.
- Precision Environmental Control: Electromagnetic step-programmable temperature regulation (±0.1°C stability) combined with dual-gas humidity blending (±1%RH accuracy across 0–100%RH range) ensures thermodynamic consistency across long-duration tests (up to 168 h).
- Modular Fixture System: Standard 50.24 cm² test area (Φ100 mm) expandable to container testing (bottles, trays, sachets) via certified adapter kits; minimum configurable area: 0.785 cm² for micro-scale barrier evaluation.
- Embedded ARM-Based Control Architecture: Standalone operation without external PC dependency; 7-inch color capacitive touchscreen interface with real-time visualization of temperature, RH, vapor concentration, and cumulative transmission curves.
- GMP-Compliant Software Suite: Audit-trail-enabled platform compliant with FDA 21 CFR Part 11 and EU Annex 11 requirements—supporting role-based access control (administrator, operator, reviewer), electronic signatures, method versioning, and immutable event logging.
Sample Compatibility & Compliance
The W403-G accommodates rigid and flexible planar specimens up to 2 mm thickness—including polymer films (PET, PE, PP), metallized laminates, Al foil composites, siliconized papers, ceramic-coated substrates, and hydrophilic/hydrophobic medical adhesives. Non-planar formats (e.g., blister cavities, thermoformed cups, stand-up pouches) are supported using validated custom fixtures. All hardware and firmware comply with ISO/IEC 17025 calibration traceability frameworks. Test protocols align with pharmacopeial methods (USP , Ph. Eur. 5.3), packaging standards (ASTM F1249, ISO 15106-2), and Chinese regulatory guidelines (YBB 00092003-2015, GB/T 26253). Each unit ships with NIM-issued Certificate of Calibration and documented uncertainty budgets per ISO/IEC 17025 Clause 6.5.
Software & Data Management
GBPI’s proprietary WinWVTR software provides full lifecycle data governance—from method creation and instrument configuration to raw data archiving and statistical analysis. All test parameters, environmental logs, sensor diagnostics, and result outputs are stored in an encrypted local SQLite database with automatic daily backup. Reports export natively to PDF, XLSX, and DOCX formats; metadata fields include operator ID, calibration certificate numbers, environmental deviation flags, and pass/fail status against user-defined specification limits. Electronic audit trails record every action—including parameter edits, report revisions, and user logins—with timestamps, IP addresses (if networked), and hash-verified integrity checks. Data exports retain embedded digital signatures for regulatory submission readiness.
Applications
- Pharmaceutical packaging validation per ICH Q5C and WHO TRS 961 Annex 5 for moisture-sensitive biologics and lyophilized products.
- Barrier performance qualification of PVDC-, EVOH-, and SiOx-coated films used in food vacuum packaging and retort applications.
- Accelerated aging correlation studies linking WVTR values to shelf-life predictions under defined T/RH stress conditions.
- QC release testing of medical transdermal patches, wound dressings, and sterile barrier systems per ISO 11607-1.
- R&D screening of novel nanocomposite films, MOF-integrated membranes, and atomic-layer-deposited encapsulation layers.
- Regulatory dossier preparation for FDA 510(k), CE marking, and NMPA registration requiring GLP-compliant permeation data.
FAQ
Does the W403-G support container testing (e.g., bottles or pouches)?
Yes—via optional calibrated fixtures conforming to ASTM F2622 and ISO 15106-3. Container-specific diffusion path corrections and surface-area normalization algorithms are embedded in the software.
Is nitrogen gas supply included with the instrument?
No—users must provide ≥99.999% pure N₂ at ≥0.1 MPa pressure. GBPI supplies compatible gas regulators and stainless-steel tubing kits as accessories.
Can test methods be password-protected and version-controlled?
Yes—WinWVTR enforces method locking, revision history tracking, and forced re-validation prompts upon parameter changes.
What calibration standards are required for routine verification?
NIM-certified national standard reference materials (GBW(E)130543/4) are recommended quarterly; factory-installed temperature/humidity probes are traceable to NIM primary standards.
Is remote monitoring or integration with LIMS possible?
The system supports OPC UA protocol and CSV/JSON API endpoints for secure bidirectional data exchange with enterprise laboratory information management systems.
