Labthink C230H Oxygen Transmission Rate (OTR) Tester for Packaging Containers and Films
| Brand | Labthink |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | Labthink C230H |
| Price Range | USD 14,000 – 85,000 |
Overview
The Labthink C230H Oxygen Transmission Rate (OTR) Tester is an ASTM D3985-compliant, isobaric oxygen permeation measurement system engineered for high-precision quantification of oxygen barrier performance in flexible packaging materials and rigid or semi-rigid packaging containers—including plastic cups, trays, bowls (e.g., congee or “Eight-Treasure Porridge” packaging), pouches, and blister packs. It operates on the coulometric sensor principle: oxygen molecules permeating through a test specimen are carried by a high-purity nitrogen carrier gas stream to a trace-level coulometric oxygen sensor, where electrochemical reduction generates a current proportional to O₂ concentration. This signal is integrated over time to calculate OTR in standardized units (cm³/m²·day, cc/100in²·day, or cm³/pkg·day). The system’s triple-test-chamber architecture enables parallel evaluation of up to three specimens—identical or dissimilar—under identical environmental conditions, ensuring inter-sample comparability and throughput efficiency essential for QC laboratories and R&D centers serving food, pharmaceutical, medical device, and consumer goods industries.
Key Features
- Tri-chamber integrated test block: Patented monolithic flow manifold designed using thermodynamic and fluid dynamic simulation; minimizes inter-chamber deviation in temperature (±0.2 °C), humidity (±1 %RH), and gas flow stability—critical for statistical validity across replicate or comparative tests.
- Independent environmental control per chamber: Each test cavity integrates dedicated PT100 temperature sensors and capacitive RH sensors, enabling real-time closed-loop regulation of test conditions from 10–55 °C and 0–90 %RH (including dry N₂ and saturated steam modes).
- Windows 10-based embedded platform: Powered by industrial-grade quad-core processor; supports both automated routine testing (predefined SOPs with pass/fail thresholds) and advanced manual mode for method development, parameter tuning, and kinetic profiling.
- DataShield™ secure data management: Complies with ALCOA+ principles; provides audit trail, electronic signatures, role-based access control, encrypted local storage, and export to CSV, XML, PDF, and LIMS-compatible formats. Optional 21 CFR Part 11 compliance package includes full electronic record validation documentation.
- Flexible specimen accommodation: Standard 50 cm² test area (108 mm × 108 mm clamping); accommodates films, laminates, foils, and formed containers up to 3 L volume. Optional container test fixtures ensure leak-tight sealing without deformation or stress-induced artifacts.
Sample Compatibility & Compliance
The C230H validates oxygen barrier integrity across diverse substrate classes: PET, PP, PS, PLA, aluminum foil laminates, EVOH-coated structures, metallized films, and thermoformed polypropylene bowls used for ambient-stable ready-to-eat meals. It meets ISO 15105-2, ASTM F1307 (for packages), ASTM D3985 (for flat films), and GB/T 19789 (China national standard). Its design supports GLP and GMP-aligned workflows, including IQ/OQ/PQ documentation templates, calibration traceability to NIST-certified reference standards, and integration with enterprise quality management systems (QMS) via OPC UA or RESTful API.
Software & Data Management
The proprietary OTR Control Suite delivers intuitive workflow navigation, real-time permeation curve visualization, automatic baseline correction, and multi-point environmental logging. All raw sensor outputs, chamber status metadata, and user actions are timestamped and cryptographically hashed. DataShield™ enforces immutable audit trails compliant with FDA 21 CFR Part 11 Subpart B requirements—supporting electronic signatures, supervised reprocessing, and retrospective data review without risk of tampering. Export modules enable seamless transfer to SAP QM, LabWare LIMS, or custom statistical process control (SPC) dashboards.
Applications
- Food packaging: Quantifying shelf-life limiting OTR in retort pouches, dairy cups, congee bowls, snack trays, and vacuum-sealed meat films.
- Pharmaceutical primary packaging: Verifying OTR specifications for blister cavities, cold-form foil, and HDPE bottles containing oxidation-sensitive APIs.
- Medical device packaging: Validating sterility maintenance in Tyvek®-based pouches and peel-open trays per ISO 11607-1.
- Material development: Benchmarking novel biopolymer blends, nanocomposite coatings, and plasma-enhanced barrier layers under accelerated aging protocols.
- Supplier qualification: Enforcing incoming material specifications against contractual OTR limits (e.g., ≤1.0 cm³/m²·day @ 23 °C/0 %RH).
FAQ
What standards does the C230H comply with?
ASTM D3985, ASTM F1307, ISO 15105-2, ISO 11607-1, GB/T 19789, and JIS K 7126-B.
Can it test irregularly shaped containers like octagonal porridge bowls?
Yes—custom silicone gaskets and adjustable clamping fixtures ensure conformal sealing for non-standard geometries without compromising test integrity.
Is high-purity nitrogen required for all test modes?
Yes; ≥99.999% N₂ is mandatory as the carrier gas. Oxygen-free nitrogen eliminates background interference and ensures coulometric sensor linearity and long-term stability.
How is temperature and humidity uniformity verified across chambers?
Each chamber contains calibrated PT100 and capacitive RH sensors; system self-calibration routines validate thermal and hygric equilibrium before every test sequence.
Does the system support remote monitoring and multi-site data aggregation?
Yes—via optional Ethernet/Wi-Fi connectivity and secure cloud gateway, enabling centralized fleet management, cross-lab method harmonization, and automated regulatory reporting.
