GBPI W413 2.0 Infrared-Based Water Vapor Transmission Rate (WVTR) Analyzer
| Brand | GBPI |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | W413 2.0M |
| Price Range | USD 42,000 – 70,000 |
| Measurement Principle | Infrared Detection of Water Vapor |
| Standards Compliance | GB/T 26253-2010, ASTM F1249-2013, ISO 15106-2:2005, JIS K7129-2008, YBB 00092003-2015 |
| Test Range | 0.002–500 g/(m²·24h) |
| Resolution | 0.001 g/(m²·24h) |
| Temperature Control Range | 15–45 °C |
| Temp. Accuracy | ±0.1 °C |
| Humidity Control Range | 0–100 %RH (dual-stream dry/wet gas method) |
| RH Accuracy | ±1 %RH |
| Permeation Area | 50.24 cm² |
| Specimen Diameter | Φ100 mm |
| Max. Specimen Thickness | ≤3 mm |
| Sample Capacity | 3 positions |
| Carrier Gas | 99.999% N₂ (user-supplied) |
| Gas Pressure | ≥0.1 MPa |
| Flow Rate | 5–100 mL/min |
| Pneumatic Clamping Pressure | ≥0.3 MPa |
| Power | 750 W, AC 220 V / 50 Hz |
Overview
The GBPI W413 2.0 Infrared-Based Water Vapor Transmission Rate (WVTR) Analyzer is a precision metrology instrument engineered for quantitative determination of water vapor permeation through barrier materials under controlled temperature and humidity conditions. It operates on the principle of non-dispersive infrared (NDIR) spectroscopy, where water vapor molecules in the carrier gas stream are selectively detected via their characteristic absorption band near 2.7 µm. This optical detection method eliminates reliance on gravimetric or coulometric techniques, delivering high reproducibility, long-term sensor stability, and immunity to environmental drift. Designed in strict alignment with international standard test methods—including ASTM F1249 (for plastic films and sheets), ISO 15106-2 (infrared sensor method), and GB/T 26253 (Chinese national standard for plastic film WVTR)—the W413 2.0 serves as a reference-grade platform for R&D laboratories, QC departments, and regulatory-compliant packaging validation facilities across pharmaceuticals, medical device packaging, flexible electronics, and food packaging industries.
Key Features
- Infrared moisture sensor calibrated using GBW(E)130543/4 certified reference materials—traceable to China’s National Institute of Metrology and compliant with JJG 812-2016 verification procedures.
- Integrated electromagnetic programmable temperature control system enabling precise ramping, soaking, and stabilization within ±0.1 °C across 15–45 °C range—no external chiller or heater required.
- Dual-gas stream humidity generation (dry + saturated wet gas blending) achieving stable, programmable RH from 0% to 100% with ±1%RH accuracy—validated per ISO 15106-2 Annex B.
- Modular pneumatic clamping mechanism with ≥0.3 MPa actuation pressure ensures uniform sealing force across Φ100 mm specimens up to 3 mm thickness, minimizing edge leakage and interfacial resistance artifacts.
- Onboard 7-inch capacitive touchscreen HMI with embedded real-time plotting: simultaneous visualization of temperature, RH, WVTR, carrier gas flow, and supply voltage—with configurable curve visibility and historical overlay.
- Fully automated test sequence including auto-zero, baseline stabilization, permeation measurement, endpoint detection, and shutdown—executed via single-touch initiation.
- Comprehensive audit trail architecture compliant with Annex 11 (EU GMP) and FDA 21 CFR Part 11 requirements: immutable timestamped logs for user login, parameter modification, result export, report approval, and electronic signature events.
Sample Compatibility & Compliance
The W413 2.0 supports diverse substrate geometries and material classes requiring rigorous barrier characterization. Its 50.24 cm² test area accommodates flat films—including biaxially oriented polypropylene (BOPP), ethylene-vinyl alcohol (EVOH) coextrusions, metallized PET, aluminum foil laminates—and rigid substrates such as blister cavity foils, thermoformed trays, and molded polymer containers (e.g., HDPE bottles, PP cups). Extended applicability includes solar backsheet multilayers (e.g., ETFE/EVA/PET stacks), OLED encapsulation films, transdermal drug delivery patches, and sterile barrier systems validated per ISO 11607-1. All measurements adhere to GLP-aligned documentation practices, with raw sensor output, calibration history, environmental chamber logs, and operator metadata retained in an encrypted local SQLite database.
Software & Data Management
GBPI’s proprietary WinWVTR v3.x software provides full instrument control, method configuration, and data governance without dependency on third-party OS services. It implements role-based access control (RBAC) with three-tier permission levels (Operator, Supervisor, Administrator), each enforcing distinct functional boundaries. All analytical outputs—including time-resolved permeation curves, statistical summaries (mean, SD, RSD), and pass/fail compliance flags against specification limits—are exportable in PDF (with digital signature embedding), CSV, and XML formats. Database queries support temporal filtering, batch ID search, and cross-parameter correlation analysis (e.g., WVTR vs. RH at fixed T). System validation documentation—including IQ/OQ protocols, cybersecurity risk assessment (per IEC 62443-3-3), and electronic record retention policy—is supplied with each unit.
Applications
- Pharmaceutical packaging: Quantification of moisture ingress into blister packs, sachets, and cold-form foil structures per USP <671> and YBB 00092003-2015.
- Food packaging development: Accelerated shelf-life modeling of snack bags, coffee pouches, and retort pouches under variable RH/T stress conditions.
- Medical device sterilization barrier validation: Verification of Tyvek® and SMS nonwovens per ISO 11607-2 Annex D.
- Flexible electronics encapsulation: WVTR screening of thin-film barriers for OLED lighting panels and wearable biosensors.
- Regulatory submission support: Generation of auditable test reports meeting EMA CHMP/Q5C and ICH Q5A(R2) comparability requirements.
FAQ
What calibration standards are used to ensure traceability?
The instrument is factory-calibrated using GBW(E)130543/4 certified water vapor permeation reference standards issued by China’s National Institute of Metrology, with uncertainty <±1.2% k=2. Calibration certificates include gravimetric verification data and NIST-traceable humidity generator validation reports.
Is nitrogen purity critical for accurate measurement?
Yes. Carrier gas must be ≥99.999% pure nitrogen (oxygen content <1 ppm) to prevent oxidation-induced sensor drift and false-positive signals. GBPI recommends integration with a dedicated nitrogen purifier module (optional accessory) when ambient gas supply purity is unverified.
Can the system validate container-level WVTR per ASTM F1307?
No—the W413 2.0 is configured exclusively for flat-sheet testing per ASTM F1249 and ISO 15106-2. Container testing requires a separate gravimetric cup method system (e.g., GBPI C400 series) compliant with ASTM F1307 and ISO 15106-1.
How is data integrity maintained during power interruption?
All active measurements write to non-volatile flash memory at 1-second intervals. Upon restart, the system resumes acquisition from the last confirmed data point and appends continuity metadata to the audit log—no data loss occurs below 20 ms outage duration.
