GBPI W413 2.0U Water Vapor Transmission Rate (WVTR) Tester
| Brand | GBPI |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | W413 2.0U |
| Test Principle | Infrared Moisture Detection |
| Standards Compliance | GB/T 26253-2010, YBB 00092003-2015, ASTM F1249-2013, ISO 15106-2:2005, JIS K7129-2008 |
| Measurement Range | 0.002–500 g/(m²·24h) |
| Resolution | 0.001 g/(m²·24h) |
| Temperature Control Range | 15–45 °C |
| Temperature Accuracy | ±0.1 °C |
| Humidity Control Range | 0–100 %RH (dual-stream dry/wet gas method) |
| Humidity Accuracy | ±1 %RH |
| Test Area | 50.24 cm² |
| Specimen Diameter | Φ100 mm |
| Max Specimen Thickness | ≤3 mm |
| Sample Capacity | 3 positions |
| Carrier Gas | ≥99.999% N₂ |
| Gas Pressure | ≥0.1 MPa |
| Gas Flow Rate | 5–100 mL/min |
| Pneumatic Clamping Pressure | ≥0.3 MPa |
| Power | 750 W, AC 220 V / 50 Hz |
Overview
The GBPI W413 2.0U Water Vapor Transmission Rate (WVTR) Tester is an infrared-based gravimetric measurement system engineered for high-precision determination of water vapor permeation through barrier materials. It operates on the principle of dynamic infrared moisture detection—where a calibrated infrared sensor quantifies water vapor concentration in a carrier gas stream after it has traversed a conditioned test specimen under controlled temperature and humidity gradients. This method delivers trace-level sensitivity without requiring desiccant or gravimetric weighing, eliminating operator-induced variability and enabling continuous, real-time monitoring of transmission kinetics. Designed in strict accordance with GB/T 26253-2010 and internationally harmonized standards—including ASTM F1249, ISO 15106-2, and JIS K7129—the instrument serves as a primary reference tool for barrier performance validation across regulated and industrial sectors.
Key Features
- Infrared Sensor Architecture: High-stability, factory-calibrated IR moisture sensor with auto-range compensation and over-range protection circuitry ensures long-term signal integrity and minimizes drift during extended operation.
- Integrated Dual-Stream Humidity Control: Independent dry-gas and saturated-wet-gas mixing system enables precise, stable RH setpoints from 0 %RH to 100 %RH at ±1 %RH accuracy—critical for evaluating ultra-high-barrier films such as aluminum foil laminates and SiOx-coated substrates.
- Electromagnetic Programmed Temperature Control: Solid-state thermal regulation eliminates external chiller/heater dependencies; achieves ±0.1 °C stability across 15–45 °C operating range without mechanical refrigerants or oil baths.
- Modular Pneumatic Clamping System: Automated, pressure-regulated sample fixture (≥0.3 MPa) ensures uniform sealing force across Φ100 mm specimens up to 3 mm thick—reducing edge leakage and improving inter-laboratory reproducibility.
- Embedded Touch Interface & Standalone Operation: 7-inch color capacitive touchscreen with local data logging, real-time multi-parameter curve visualization (temperature, RH, WVTR, flow rate, voltage), and offline report generation—no external PC required.
- GMP-Compliant Software Framework: Role-based user authentication, electronic signatures, full audit trail (including parameter changes, test initiation/termination, calibration events), and 21 CFR Part 11–ready data export (PDF, CSV, XML).
Sample Compatibility & Compliance
The W413 2.0U accommodates rigid and flexible planar specimens—including polymer films (PET, PE, PP), metallized and oxide-coated barriers, pharmaceutical blister lidding, medical transdermal patches, photovoltaic backsheet laminates, and display cover films. Its 50.24 cm² effective test area and triple-sample configuration support comparative studies and statistical validation per ISO 5725. Regulatory alignment extends beyond physical testing standards: software architecture conforms to Annex 11 (EU GMP) and FDA’s Computerized Systems Validation (CSV) guidance, supporting inspection readiness for pharmaceutical packaging qualification (e.g., USP , YBB 00092003). All instrumentation is traceable to national standard reference materials (GBW(E)130543/4), certified by the State Administration for Market Regulation (SAMR), ensuring metrological equivalence across global supply chains.
Software & Data Management
GBPI’s proprietary WinWVTR v3.2 software provides full lifecycle test management—from method definition and environmental profile scripting to automated pass/fail evaluation against user-defined limits. Raw sensor outputs are timestamped and stored in an embedded SQLite database with SHA-256 hash integrity verification. Export modules generate PDF reports containing test metadata, calibration history, environmental logs, raw curves, and statistical summaries (mean, SD, RSD). Audit trails record every action—including login/logout, parameter edits, result approvals, and firmware updates—with immutable timestamps and operator IDs. Data backups are configurable via USB or network share, and optional integration with LIMS via HL7 or RESTful API is available upon request.
Applications
- Pharmaceutical packaging: Quantifying moisture ingress into blister packs, sachets, and cold-chain secondary containers to ensure drug stability per ICH Q1A(R2).
- Food packaging R&D: Benchmarking shelf-life extension performance of multilayer coextrusions and bio-based barrier coatings.
- Flexible electronics: Validating encapsulation integrity of OLED lighting panels and foldable display substrates under accelerated aging conditions.
- Medical device packaging: Supporting ISO 11607-1 validation for sterile barrier systems used in Class II/III devices.
- Renewable energy: Measuring water vapor permeance of PV backsheet materials per IEC 62788-2-1 to predict delamination risk in field-deployed modules.
FAQ
What carrier gas is required, and why must it be ≥99.999% pure nitrogen?
High-purity nitrogen eliminates interfering volatile organic compounds and residual moisture that would compromise IR sensor baseline stability and introduce systematic bias—especially critical at sub-0.01 g/(m²·24h) measurement levels.
Can the W413 2.0U test non-planar packages like bottles or pouches?
Yes—using optional custom fixtures (e.g., cup-style holders or vacuum-sealed chamber adapters), the system supports package-level WVTR testing per ASTM F1249 Annex A2, provided internal volume and surface area are accurately defined.
How is calibration traceability maintained?
Each unit ships with dual-point calibration using NIST-traceable humidity generators and GBW(E)130543/4 certified reference materials. Certificate of Calibration includes uncertainty budget per ISO/IEC 17025 requirements.
Is remote monitoring supported?
The embedded Ethernet interface enables secure remote access via TLS-encrypted web dashboard for real-time status viewing, alarm notifications, and limited parameter adjustment—subject to role-based permissions.
What maintenance intervals are recommended?
IR sensor zero-check every 30 days; full system verification (temperature/humidity uniformity, flow calibration, seal integrity) every 6 months; pneumatic filter replacement every 12 months—documented in the included Maintenance Logbook compliant with ISO 9001 clause 7.1.5.
