Ozone Aging Test Chamber QY-Series

Overview

The QY-Series Ozone Aging Test Chamber is an engineered environmental test system designed for accelerated evaluation of elastomeric and polymeric materials under controlled ozone exposure. It operates on the principle of corona discharge ozone generation within a fully sealed, recirculating gas loop—ensuring operator safety, measurement stability, and strict compliance with international aging test protocols. Unlike open-loop systems, this chamber maintains precise ozone concentration (50–1500 pphm), temperature (25–40 °C), and relative humidity (30–65 %RH) independently and simultaneously, enabling reproducible simulation of atmospheric ozone degradation mechanisms. The chamber’s stainless-steel test compartment resists corrosion and adsorption, preserving ozone integrity throughout the test cycle. Its architecture supports both static and dynamic test modes per ISO 1431-1:2004 Annex A and B, making it suitable for R&D laboratories, quality control departments, and third-party certification bodies requiring GLP-compliant aging data.

Key Features

• Sealed, fully recirculating ozone gas loop with silent corona discharge ozone generator—eliminates ambient air interference and ensures consistent ozone partial pressure.
• Nondispersive ultraviolet (UV) ozone analyzer with real-time digital display; calibrated range 0–2000 pphm; long-term drift <±2 %FS/year; operational lifetime ≥5 years.
• PID auto-tuning temperature and humidity controllers integrated with Weilun industrial color touchscreen and Siemens S7-1200 PLC for deterministic setpoint tracking and fault logging.
• Motor-driven 360° rotating sample rack operating at precisely 1 rpm—engineered to follow cycloidal motion trajectory per ASTM D1149 requirements for dynamic strain application.
• Dual-mode capability: configurable for static (fixed-strain) or dynamic (cyclical extension) testing; optional motorized tensioning fixtures available for standardized elongation control.
• Integrated metrology interface compliant with ISO/IEC 17025 calibration traceability requirements; accommodates third-party verification of ozone concentration and thermal uniformity.
• Comprehensive safety architecture including ozone leak detection, over-temperature cutoff, motor overcurrent protection, and grounded high-voltage shielding for corona discharge module.

Sample Compatibility & Compliance

The QY-Series accommodates specimens conforming to ISO 1431-1 Type 1 (dumbbell), Type 2 (ring), and Type 3 (strip) geometries, with customizable chamber volumes (80–1000 L) to support large-format components such as automotive hoses, cable jackets, and conveyor belts. All models meet the dimensional tolerances and airflow specifications defined in GB/T 7762–2003 and ISO 1431-1:2004 for ozone cracking assessment. The system supports audit-ready documentation: event logs (timestamped temperature, humidity, ozone ppm, runtime), user access levels, and electronic signature-capable reporting—aligned with FDA 21 CFR Part 11 readiness when paired with validated LIMS integration. Calibration certificates for ozone sensor and thermal sensors are provided with each unit shipment.

Software & Data Management

Control firmware supports RS232 serial communication and 4–20 mA analog output for integration into centralized facility monitoring systems (e.g., SCADA or LabVantage). Built-in data logger records all critical parameters at user-selectable intervals (1–60 s), storing up to 30 days of continuous operation history locally. Export formats include CSV and PDF reports with embedded metadata (operator ID, test standard reference, chamber ID, calibration due date). Optional software package adds automated pass/fail evaluation against crack initiation time thresholds, statistical trend analysis across multiple test runs, and export-compatible XML schemas for ERP linkage.

Applications

• Evaluation of ozone resistance in natural rubber (NR), styrene-butadiene rubber (SBR), nitrile rubber (NBR), and thermoplastic elastomers (TPEs).
• Qualification testing of wire & cable insulation per IEC 60811-506 and UL 1581 Section 1060.
• Validation of protective coatings and sealants used in outdoor infrastructure exposed to urban/industrial ozone environments.
• Accelerated aging studies supporting ISO 11344 and ASTM D573 protocols for shelf-life prediction modeling.
• Supporting GMP documentation packages for medical device polymer components subject to ISO 10993-12 biocompatibility assessments.

FAQ

What ozone generation method does the QY-Series employ, and why is it preferred for standardized testing?
It uses silent corona discharge—producing ozone without nitrogen oxide byproducts—ensuring compliance with ISO 1431-1’s requirement for “ozone-only” exposure conditions.
Can the chamber be validated for ISO/IEC 17025 accreditation?
Yes—the sealed loop design, traceable UV sensor, and programmable calibration interface enable full uncertainty budgeting and third-party validation per ILAC-G8 guidelines.
Is dynamic testing mode compatible with ASTM D1149?
Yes—the 1 rpm cycloidal-motion sample rack satisfies ASTM D1149’s requirement for “continuous unidirectional rotation” and eliminates torsional stress artifacts.
How is ozone concentration verified during long-duration tests?
The nondispersive UV sensor provides continuous closed-loop feedback; optional external ozone calibrator (NIST-traceable) can be connected via the dedicated metrology port for periodic linearity checks.
Does the system support remote monitoring and alarm notification?
Via optional Ethernet gateway module: email/SMS alerts for temperature deviation >±1.0 °C, ozone drift >±5 pphm, or power interruption events—with encrypted TLS 1.2 data transmission.