Labthink C106H High-Throughput Differential-Pressure Gas Permeability Tester for Flexible Packaging Films and Barrier Materials

Overview

The Labthink C106H is a high-throughput, six-chamber differential-pressure gas permeability tester engineered for precise quantification of gas transmission rate (GTR), permeability coefficient (P), diffusion coefficient (D), and solubility coefficient (S) in flexible packaging materials. It operates on the manometric pressure-difference principle—where a controlled pressure gradient is established across a conditioned specimen sealed between upper (high-pressure) and lower (vacuum) test chambers. As gas molecules permeate through the material under this gradient, real-time monitoring of pressure rise in the evacuated lower chamber enables calculation of all fundamental barrier parameters per ISO 15105-1 and ASTM D1434. Designed specifically for R&D labs and QC environments in global packaging, pharmaceutical, and advanced materials industries, the C106H delivers metrological traceability, thermal stability, and multi-sample statistical rigor without operator intervention.

Key Features

• Six independent, identically dimensioned test chambers (38.48 cm² each), enabling parallel evaluation of up to six specimens under identical environmental conditions—tripling throughput versus conventional single- or dual-chamber systems.
• 360° circumferential air-circulation thermal control system with ±0.15 °C temperature uniformity across all chambers; optional extended range (5–60 °C) supports low-temperature barrier characterization for cryogenic packaging applications.
• Imported ultra-high-resolution vacuum transducers (0.01 Pa resolution, ±0.2% accuracy over full scale) and a high-efficiency vacuum pump capable of reaching ≤0.2 Pa base pressure—critical for accurate measurement of ultra-high-barrier films (e.g., AlOx-coated PET, SiOx-laminates, metallized CPP).
• Automated pneumatic clamping mechanism ensures consistent sample compression force and leak-tight sealing across all six stations—eliminating manual torque variability and reducing inter-test drift.
• Intelligent pressure regulation system maintains high-side pressure within ±0.2 kPa of setpoint (10–150 kPa adjustable) during testing, enabling method-specific compliance with regulatory gas challenge protocols.
• Integrated 12-inch Windows-based touch interface with embedded test sequencing logic; supports both “Auto Mode” (single-parameter initiation) and “Expert Mode” (full parameter scripting, ramp profiles, multi-step conditioning).

Sample Compatibility & Compliance

The C106H accommodates standard film and sheet formats up to 11.2 cm × 11.2 cm and 3 mm thickness—including multilayer coextrusions, aluminum foil laminates, vacuum-metallized PET/OPP, PVDC-coated substrates, polymer nanocomposites, and functional barrier coatings. Its modular gas delivery architecture permits safe integration of H₂, CH₄, and other non-corrosive process gases via user-supplied regulated sources (550 kPa inlet pressure required). All hardware and firmware comply with ISO/IEC 17025 calibration traceability requirements. Optional configurations include 21 CFR Part 11-compliant electronic signatures, audit-trail logging, and GMP-aligned user access controls—validated for use in pharmaceutical primary packaging qualification per USP and ICH Q5C.

Software & Data Management

Labthink’s proprietary PermeationSuite™ software provides real-time visualization of pressure vs. time curves, automatic GTR/P/D/S derivation, and export-ready reports conforming to GLP documentation standards. Raw data files are stored in encrypted, tamper-evident binary format with SHA-256 checksums. The system supports CSV, PDF, and XML output with customizable metadata fields (operator ID, batch number, environmental logs). With the optional DataShield™ module, users gain role-based permissions, electronic signature workflows, and immutable audit trails meeting FDA and EMA data integrity expectations. Remote diagnostics and firmware updates are supported via secure HTTPS channel.

Applications

• Quantitative validation of oxygen barrier performance in retort pouches, medical device pouches, and active packaging films.
• Accelerated shelf-life modeling for food packaging using O₂ and CO₂ permeation kinetics at elevated temperatures.
• Development and QC of hydrogen-barrier layers for fuel cell membranes and green hydrogen storage bladders.
• Comparative assessment of metallization quality, coating uniformity, and defect density in roll-to-roll coated webs.
• Regulatory submission support for packaging compatibility studies under FDA 21 CFR 177, EU 10/2011, and China GB 9685.

FAQ

What gases can be tested on the C106H?
Standard configurations support O₂, N₂, and CO₂. H₂, CH₄, He, and Ar testing are available with customized gas handling modules and safety interlocks.
Is the instrument compliant with FDA 21 CFR Part 11?
Yes—when equipped with the optional CFR Part 11 package, including electronic signatures, audit trail, and role-based access control.
Can the C106H measure water vapor transmission?
No—this model is optimized for permanent gases only. For WVTR, Labthink offers the W3/030 and W3/330 series based on infrared detection.
How is calibration verified?
Each unit ships with NIST-traceable calibration certificates for vacuum sensors and temperature probes; annual recalibration services are available globally via Labthink’s ISO/IEC 17025-accredited service centers.
What maintenance is required for the vacuum pump?
The integrated oil-free scroll pump requires no routine oil changes; filter replacement is recommended every 12 months or after 2,000 hours of operation.