Evaluating Moisture Barrier Performance With WVTR Testers

Containing moisture plays a crucial role across industries from pharmaceuticals to electronics to building materials. Quantifying a product's water vapor barrier properties requires an accurate WVTR (water vapor transmission rate) tester. These systems evaluate materials' breathability through standard procedures respected worldwide.

ASTM Standards Compliance

Leading China water vapor transmission rate tester manufacturers like Thermo Scientific design instruments according to ASTM F1249 "Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting." Fully automated systems streamline multi-hour tests into standardized measurements comparable across industries.

Precise Measurements

Test specimens form the sole barrier between two air streams—one saturated in water vapor, the other dry. Mass sensors track moisture quantity changes traversing materials over time. Sensors detect nanograms enabling WVTR tester detection to thousandths of grams/m2/day. Results determine permeability and effectiveness of moisture barriers.

Custom Configurability

Some testers accommodate various material sizes, thicknesses, shapes and environmental conditions. Custom sample holders design fixtures specific geometries or concurrent testing of laminate composites intact. Controlled temperature and humidity chambers simulate diverse climates to accelerate evaluations.

User Friendliness

Self-contained systems consolidate gravimetric analysis within walk-away format. Intuitive software guides users through standard protocols while automatically calculating and recording results. Touchscreens simplify operation even for occasional users. On-board data storage preserves compliance documentation.

Remote Monitoring

Network connectivity allows remote witnessing of live tests. Teams evaluate performance simultaneously from multiple sites. Data feeds automated quality control protocols. Instruments send maintenance notifications prolonging uptime between qualified servicing.

Accelerated Weathering

Long term barrier stability equally matters for moistureproof packaging or building wraps. Optional accelerating weatherometers subject materials to UV radiation, water spray and heat/freeze cycling to simulate years outdoors in weeks. This identifies material failure thresholds and aging impacts on permeability.

Compatibility & Durability

Stainless construction withstands washdowns and corrosive samples. Calibration standards maintain accuracy long-term. Systems integrate seamlessly into production lines and quality departments through standard outputs and LIMS connectivity. Their precision creates value through more informed material selections.

With quantitative moisture permeability insights, WVTR testers empower product developers worldwide to impart effective moisture barriers into myriad applications. Their standardization and precision underlies integrity across industries.