Systech Illinois 8700 Oxygen Transmission Rate Analyzer

Overview

The Systech Illinois 8700 Oxygen Transmission Rate (OTR) Analyzer is a high-precision, gravimetrically validated instrument engineered for quantitative determination of oxygen permeation through packaging materials and flexible barrier films. It operates on the principle of coulometric detection—utilizing a patented electrochemical sensor that quantitatively measures oxygen molecules traversing a test specimen under controlled temperature and relative humidity (RH) conditions. Unlike optical or paramagnetic OTR methods, the coulometric approach delivers absolute, zero-drift measurement with inherent traceability to NIST-certified reference standards. Designed for compliance-critical environments—including pharmaceutical primary packaging validation, food shelf-life modeling, and medical device sterile barrier qualification—the 8700 provides deterministic OTR data essential for ISO 15105-2, ASTM F1307, and ASTM D3985 conformance.

Key Features

• True parallel multi-sample testing: Simultaneous analysis of up to 11 independent specimens, each with individual start/stop/pause control—enabling statistically robust batch evaluation without sequential delay.
• Ultra-fast stabilization: Achieves measurement equilibrium in as little as 3 hours for many common polymer films (e.g., PET/Alu/PE laminates), significantly reducing time-to-result versus conventional 24–72 hr protocols.
• Coulometric sensor architecture: Factory-calibrated, long-life electrochemical cell with 5 years of continuous operation.
• Modular environmental control: Standard ambient operation; optional integrated temperature-regulated test chamber (±0.5°C stability) and programmable RH generation (0–100% RH, saturated vapor delivery) for ISO 15105-1 Annex A-compliant conditioning.
• Low operational overhead: Requires only industrial-grade nitrogen (99.5% purity) as carrier gas—no zero-air generators, ozone scrubbers, or specialty calibration gases beyond initial NIST film validation.

Sample Compatibility & Compliance

The 8700 accommodates rigid and flexible packaging formats—including pouches, blister cavities, sachets, and flat film coupons—via interchangeable test cell kits (compatible with Systech 8701 auxiliary adapters for irregular geometries). All sample fixtures maintain ASTM F1307-defined seal integrity and edge-clamp pressure uniformity (>200 kPa contact force). Data output meets FDA 21 CFR Part 11 requirements when used with validated QuickStart software (audit trail, electronic signatures, role-based access). Instrument design adheres to IEC 61000-6-3 EMC standards and carries UKCA marking for CE-equivalent conformity in Great Britain.

Software & Data Management

Controlled via Windows-based QuickStart software, the 8700 supports method-driven workflows with preconfigured templates for common standards (e.g., “ASTM F1307 Pack Mode”, “ISO 15105-2 Film Mode”). Real-time OTR curves display permeation kinetics, with automatic endpoint detection based on slope convergence criteria (≤0.05 cm³/m²/day/hr over 60 min). Raw sensor voltage, temperature, RH, and flow data are logged at 1 Hz resolution and exportable in CSV or PDF report format. Software includes GLP/GMP audit trail logging, user permission tiers, and secure database backup—fully compatible with LIMS integration via OPC UA.

Applications

• Pharmaceutical packaging: Validation of aluminum foil blisters, cold-form foil, and polymer-coated push-through packs per USP and Ph. Eur. 3.2.1.
• Food & beverage: Shelf-life prediction for modified atmosphere packaging (MAP), vacuum-sealed meats, and retort pouches under accelerated RH stress conditions.
• Medical devices: Sterility barrier system (SBS) qualification per ISO 11607-1, including Tyvek®/PET laminate permeation at 38°C/90% RH.
• Material R&D: Comparative OTR screening of nanocomposite films, SiO_x-coated PET, and bio-based PLA barriers across temperature-humidity matrices.

FAQ

What calibration standards are required for routine operation?
NIST-traceable reference films (e.g., polyester film with certified OTR of 12.5 cm³/m²/day at 23°C/0% RH) are recommended quarterly; certified gas challenges (e.g., 100 ppm O₂ in N₂) may be used for sensor linearity verification.
Can the 8700 measure CO₂ or water vapor transmission?
No—this instrument is specifically configured for oxygen-only permeation analysis. Systech Illinois offers separate WVTR (Model 8702) and CO₂TR (Model 8703) analyzers with dedicated sensor modules.
Is temperature control mandatory for ISO 15105-2 compliance?
Yes—ISO 15105-2 requires stabilized temperature within ±0.5°C during test execution. The optional TCC-8700 temperature-controlled chamber satisfies this requirement; ambient-mode testing fulfills ASTM F1307 but not ISO 15105-2.
How is leak integrity verified prior to test initiation?
The system performs automated pressure decay checks (<0.5 mbar/min over 5 min) across all active test cells using integrated differential pressure transducers—failures trigger audible alerts and abort sequences.
What maintenance schedule is recommended?
Coulometric sensor lifetime exceeds 5 years under typical use; annual verification of flow controllers, RH generator saturation efficiency, and seal compression force is advised per Systech’s PM-8700 protocol.