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The Labthink C401H Oxygen/Water Vapor Transmission Rate Test System provides an integrated, high-precision solution for evaluating the oxygen transmission rate (OTR) and water vapor transmission rate (WVTR) of high and medium barrier materials. Based on coulometric oxygen sensor and infrared water vapor sensor technologies, the C401H is designed and manufactured in accordance with internationally recognized standards including ASTM D3985, ASTM F1249, and ISO 15106-2.
The C401H is widely applicable to the pharmaceutical, food, medical device, daily chemical, photovoltaic, electronics, and other industries. It can accurately evaluate the barrier performance of films, packaging materials, sheets, and related materials, helping manufacturers and laboratories better understand how effectively packaging protects products from oxygen and moisture.
Integrated OTR and WVTR Testing
One of the key advantages of the C401H is its ability to switch between oxygen transmission rate and water vapor transmission rate testing modes. This integrated design allows users to evaluate both barrier properties using a single system.
Testing both OTR and WVTR on the same sample platform also helps avoid potential sample contamination or variability that can occur when transferring samples between different instruments. This provides a more efficient and consistent approach to comprehensive barrier-property evaluation.
Advanced Oxygen Detection Technology
The C401H is equipped with a ppb-level coulometric oxygen sensor, representing Labthink's latest technological advancement in oxygen detection. The high-sensitivity sensor enables a lower testing limit, making the system suitable for demanding high-barrier material applications.
Compared with traditional coulometric oxygen sensors, the advanced sensor offers a significantly extended service life—up to three times longer—helping reduce sensor replacement frequency and long-term operating costs.
Long-Life Water Vapor Detection
For WVTR testing, the C401H incorporates a Labthink infrared water vapor sensor designed according to ASTM F1249. The sensor uses a non-consumable design to provide an ultra-long service life while maintaining reliable and accurate water vapor transmission measurements.
With advanced oxygen and water vapor sensing technologies integrated into one system, the C401H offers laboratories a convenient and reliable solution for characterizing the barrier performance of modern packaging and high-performance materials.
The Labthink C401H Oxygen/Water Vapor Transmission Rate Test System combines precision, versatility, and long-term sensor performance in a single platform, making it an effective choice for quality control, material development, packaging research, and product performance evaluation.
