WVTR tester W301 2.0

compatibilitymoisturesensor

Product Introduction
This instrument uses the gravimetric weight-loss method and is developed in accordance with standards such as GB/T 1037 and ASTM E96. It is designed for WVTR testing of films, sheets, paper and finished packaging used in food, pharmaceutical, medical device, chemical, photovoltaic and electronics industries, providing a wide-range solution for high, medium and low barrier materials.

Test Principle
Distilled water is added to a clean, dry moisture cup which is sealed with the pretreated sample film and placed in the test chamber. By controlling temperature and humidity, the water evaporates and vapor passes through the specimen; the weight loss of the cup over time is recorded to calculate key barrier parameters.

Compliant Test Standards

• Chinese Pharmacopoeia 2025 Edition — 4010 Water Vapor Transmission Test Method for Pharmaceutical Packaging Materials
• GB/T 1037, GB/T 16928
• ASTM E96/E96M, ASTM D1653
• ISO 2528, DIN 53122-1, JIS Z0208, YBB 0009-2003

Product Advantages

• Patented core technology and high-precision weight sensor for fast, stable measurements (resolution up to 0.0001 g/(m²·24h)).
• Wide measurement range and compatibility with high/medium/low barrier films; optional fixtures for finished packages.
• Ergonomic design with real-time curve display; fully automatic one-click operation with auto-judgment and auto-stop.
• Intelligent operating system compliant with pharmaceutical GMP computerized system requirements: audit trail, multi-level user access, configurable reports and multi-format export.
• Authorized calibration traceable to in-house national standard reference materials.
• Supports IoT cloud access for remote login, data management and remote diagnostics; cloud resources include manuals and operation videos.

Application Fields

• Films: PP/PET/PE/PVC/BOPP/CPP, composite films, paper-plastic laminates, metalized films, co-extruded films, aluminum-coated films, biodegradable films (PLA/PBAT/PBS).
• Sheets: rigid pharmaceutical sheets (PP/PVC/PTP), metal composite sheets, rubber sheet barrier testing.
• Paper & composites: coated paper, silicone-coated paper, cigarette aluminum foil paper, paper-aluminum-plastic composites.
• Medical patches: WVTR testing for medical plaster and treatment patches.
• Finished packaging: with custom fixtures can test pharmaceutical PE bottles, sealed sachets, ointment tubes, infusion tubing, plastic trays.

Technical Specifications
Test range: 0.1 ~ 10000 g/(m²·24h)
Resolution: 0.0001 g/(m²·24h)
Temperature control: 15 ~ 55 °C, accuracy ±0.1 °C
Humidity control: up to 90% RH, accuracy ±2% RH
Effective test area: 50.24 cm²; specimen diameter Ø90 mm; max specimen thickness ≤3 mm
Simultaneous tests: 1 sample
Dimensions: 380 × 545 × 315 mm; Net weight: 22 kg
Power: 450 W, AC 220 V, 50 Hz