Ensuring the quality, safety, and longevity of packaged goods-be it food, pharmaceuticals, or sensitive electronics-hinges on a critical parameter: the water vapor transmission rate (WVTR) of packaging materials. Accurate WVTR testing is vital for material selection, regulatory compliance, and preventing moisture-related spoilage.
Guangzhou Shounuo Scientific Instruments Co., Ltd. is a leader in this field. As a specialized manufacturer of flexible packaging testing instruments, Shounuo combines innovative engineering with rigorous quality control to deliver reliable WVTR Testing Equipment trusted globally. Their portfolio caters to diverse needs, from R&D to high-throughput quality control.
Here's a detailed look at Shounuo core WVTR Testing Equipment, designed to meet various standards and accuracy requirements.
1. SN-H01E & SN-H103E: Infrared Sensor Method WVTR Testers
This series utilizes advanced infrared sensor technology for high-precision measurement of water vapor transmission, offering superior sensitivity for materials with medium to high barrier properties.
SN-H01E Single-Chamber Infrared WVTR Tester:
An ideal choice for precise, single-sample analysis. Its design focuses on accuracy and reliability for R&D or focused quality checks, featuring stable temperature control via 360° air circulation and a user-friendly touch-screen interface.
SN-H103E Three-Chamber WVTR Tester (Infrared Method):
Engineered for efficiency and productivity, this model allows simultaneous testing of three independent samples. Each chamber operates autonomously and can generate separate reports, drastically increasing lab throughput. It shares the high-precision infrared sensor and robust design of the SN-H01E but is built for capacity.
Shared Key Features & Applications:
Method: Infrared moisture sensor method, compliant with ASTM F1249, ISO 15106-2, GB/T 26253, and JIS K7129.
Scope: Perfect for plastic films, co-extruded films, aluminized films, aluminum foil composites, PP/PVC sheets, metal foils, and silicon wafers.
Technology: High-precision IR sensor for low detection limits, excellent repeatability, and an ultra-wide test range.
2. SN-W01E & SN-W103E: Gravimetric (Cup Method) WVTR Testers
This series employs the classic and widely recognized gravimetric (cup) method, valued for its straightforward principle and alignment with numerous long-standing international standards.
SN-W01E Single-chamber WVTR (Cup Method):
The cornerstone for routine quality control. Its robust and simple design involves sealing the sample over a cup containing distilled water and measuring the weight loss over time. It's a dependable workhorse for testing films, sheets, and finished packages.
SN-W103E Three-Chamber Gravimetric WVTR Tester:
This system scales up the trusted cup method for productivity. It enables multiple specimens to be tested concurrently under identical, controlled conditions. High-precision sensors monitor weight changes, and automated cycles ensure consistency, making it ideal for batch testing in QC departments.
Shared Key Features & Applications:
Method: Gravimetric cup method, conforming to ASTM E96, GB/T 1037, GB/T 16928, and TAPPI T464.
Use Case: Excellent for plastic films, composite films, sheets, and finished packages like bottles and bags.
Advantages: PID temperature control, stable humidity environment, and automatic report generation.
Why Choose Shounuo WVTR Testing Solutions?
Shounuo WVTR Testing Equipment is backed by over a decade of expertise as a national high-tech enterprise. Their instruments are integrated systems that emphasize:
Accuracy & Reliability: Built with high-quality components, including imported sensors and stable control systems.
Compliance: Designed to meet globally recognized standards (ASTM, ISO, GB, JIS, YBB).
User-Centric Design: From intuitive interfaces to automated reporting and robust after-sales support.
Versatile Portfolio: From Single-chamber WVTR (cup method) units for basic checks to high-efficiency Three-chamber WVTR Tester (infrared method) systems, Shounuo provides the right WVTR Test Equipment for Plastic Films and beyond to secure your product's integrity.
