Systech Illinois Lyssy L80-6000 Water Vapor Transmission Rate Analyzer

Overview

The Systech Illinois Lyssy L80-6000 Water Vapor Transmission Rate (WVTR) Analyzer is a gravimetric-based instrument engineered for high-precision, standardized measurement of water vapor permeation through flexible and semi-rigid packaging materials. It operates on the principle of dynamic gravimetric analysis: a conditioned test specimen separates two controlled environmental chambers—one saturated with water vapor (high RH), the other maintained at low humidity (dry side). The mass gain of the dry-side chamber is monitored continuously via a high-resolution microbalance under stabilized temperature and humidity conditions. This method complies with core international standards including ASTM F1249 (for infrared detection-based systems, with gravimetric correlation), ISO 15106-1 (gravimetric method), and ISO 2528 (traditional desiccant-based gravimetry), ensuring traceable, reproducible data for regulatory submissions and quality control workflows.

Key Features

• Integrated thermoelectric actuation (TEA) system enables precise, rapid, and stable temperature control across the full operational range (5–50°C), eliminating dependency on external water baths or chillers.
• Automated dual-chamber RH control delivers accurate and repeatable humidity gradients from 5% to 60% RH on the dry side—critical for evaluating barrier performance under realistic storage conditions.
• Motorized sample clamping mechanism ensures uniform compressive force and consistent seal integrity across diverse material types (e.g., laminates, foils, coated papers, polymer films), minimizing operator-induced variability.
• Seal-free sample mounting design utilizes precision-machined stainless-steel fixtures; no lubricants or adhesives required—reducing contamination risk and enabling rapid sample changeover.
• Embedded high-stability microbalance with sub-10 µg resolution supports detection of ultra-low WVTR values down to 0.03 g/m²/day while maintaining linearity across five orders of magnitude (up to 10,000 g/m²/day).
• Real-time environmental monitoring with independent sensors for temperature, RH, and mass drift ensures automatic validation of test stability before data acquisition begins.

Sample Compatibility & Compliance

The Lyssy L80-6000 accommodates circular specimens up to 80 mm in diameter and thicknesses up to 3 mm, making it suitable for monolayer films, coextrusions, metallized substrates, and multilayer laminates used in pharmaceutical blister packaging, food pouches, medical device wraps, and electronics moisture barriers. All hardware and software architecture are designed to support GLP-compliant operation: audit trails, user access levels, electronic signatures, and data immutability features align with FDA 21 CFR Part 11 requirements when deployed with validated Permetrace™ configurations. Test protocols may be configured to meet ISO 15106-1 Annex A (gravimetric reference method) and ASTM D3045 (thermal aging preconditioning guidance) for accelerated stability assessments.

Software & Data Management

Permetrace™ is a Windows-based application providing end-to-end test lifecycle management—from method creation and instrument calibration verification to real-time curve visualization and automated report generation. It supports customizable test templates with embedded pass/fail criteria, statistical process control (SPC) charting, and export to CSV, PDF, or XML formats compatible with LIMS integration. Raw mass vs. time datasets are timestamped and archived with full environmental metadata (T, RH, drift rate), enabling retrospective root-cause analysis. System logs record all user actions, parameter modifications, and calibration events—fully compliant with GMP documentation expectations for QC laboratories.

Applications

• Quantitative evaluation of moisture barrier efficacy in primary pharmaceutical packaging (e.g., Alu-Alu blisters, cold-form foil, HDPE bottles with desiccant).
• Accelerated shelf-life modeling for hygroscopic drug products by correlating WVTR data with degradation kinetics under ICH Q1A(Q) conditions.
• Comparative qualification of alternative barrier coatings (SiO_x, AlO_x, PVDC) during formulation development.
• Validation of sterilization-induced barrier degradation in Tyvek®-based medical device packaging per ISO 11607-1.
• Supplier qualification and incoming inspection of flexible food packaging where moisture sensitivity impacts texture, flavor, or microbial stability.

FAQ

What standards does the Lyssy L80-6000 comply with for WVTR testing?

It supports gravimetric methodology alignment with ISO 15106-1, ISO 2528, and ASTM F1249 (when referenced against gravimetric benchmarks), and facilitates compliance with regulatory documentation requirements under FDA 21 CFR Part 11 and EU Annex 11.
Can the instrument perform tests at sub-ambient temperatures?

No—the system’s operational lower limit is 5°C; it is not equipped for refrigerated or frozen-condition testing.
Is Permetrace™ software validated for use in regulated environments?

Yes; IQ/OQ documentation packages and configuration change control procedures are available upon request for GxP implementation.
How is sample seal integrity verified during testing?

The motorized clamp applies calibrated torque, and real-time mass drift monitoring triggers automatic test suspension if deviation exceeds ±0.5% of expected slope over 30 minutes.
Does the system require daily recalibration?

No—routine calibration verification using NIST-traceable reference standards is recommended every 30 days or per internal SOP, with full calibration performed annually or after maintenance.