OK-XD Series Xenon Arc Weathering Test Chamber for Plastics and Polymeric Materials

Overview

The OK-XD Series Xenon Arc Weathering Test Chamber is an engineered environmental simulation system designed to replicate the full spectrum of solar radiation—including UV, visible, and near-infrared wavelengths—alongside controlled temperature, humidity, and water exposure. Based on ASTM G155, ISO 4892-2, and SAE J2527 standards, it employs long-arc, air-cooled xenon lamps filtered through precision optical glass to deliver spectrally stable irradiance closely matching terrestrial sunlight (AM1.5). This enables accelerated aging evaluation of polymeric materials—including thermoplastics, elastomers, composites, and coated substrates—under conditions that emulate real-world outdoor exposure, indoor light degradation, and combined stress environments such as light-rain-heat-humidity cycling. The chamber’s modular architecture supports reproducible test protocols required for QC release, material qualification, and regulatory submissions in automotive, lighting, construction, and consumer goods industries.

Key Features

• Full-spectrum xenon arc source with calibrated spectral output across 300–3000 nm, compliant with ISO 4892-2 spectral class requirements.
• Integrated water spray system delivering programmable intermittent or continuous rain simulation at regulated pressure (70–127 kPa), meeting ASTM D4329 wetting cycle specifications.
• Precise black panel temperature control (40–85°C) and chamber air temperature regulation (0–100°C, optionally 150°C), enabling accurate thermal load replication per ISO 11341.
• Dynamic humidity control (20–98% RH) with independent setpoints for light and dark phases, supporting multi-stage weathering profiles including condensation cycles.
• Flexible sample mounting options: dual-layer stainless steel mesh trays for flat specimens or a motorized 500 mm diameter turntable (0–3 rpm) for uniform irradiance distribution across irregular geometries.
• Robust chamber construction using 1.2 mm SUS304 stainless steel interior and corrosion-resistant outer casing (galvanized steel with epoxy powder coat or optional SUS304).
• Comprehensive safety architecture including over-temperature cut-off, refrigeration system high/low pressure interlocks, motor overload protection, and earth leakage circuit interruption.

Sample Compatibility & Compliance

The OK-XD chamber accommodates a broad range of non-metallic specimens—from thin films and injection-molded plastic parts to painted panels, rubber gaskets, and textile laminates—without requiring custom fixtures. Its open-access design and standardized sample holder dimensions align with ISO 11341 Annex A and ASTM D2565 specimen mounting guidelines. All operational parameters—including irradiance intensity, temperature ramp rates, humidity dwell times, and spray duration—are traceable and repeatable under GLP-compliant test execution. The system supports audit-ready documentation for FDA-regulated applications (e.g., medical device packaging validation per ISO 11607) and automotive OEM requirements (e.g., GMW14124, Ford CETP 00.00-L-467). Optional liquid nitrogen inlet facilitates low-temperature dark cycles per IEC 60068-2-1.

Software & Data Management

Equipped with a 7-inch color touchscreen HMI controller, the OK-XD series provides intuitive programming of multi-step test sequences—including irradiance ramping, temperature/humidity transitions, and synchronized spray timing. Real-time logging records all critical variables at user-defined intervals (minimum 1-minute resolution), with data export via USB to CSV format. Optional Ethernet connectivity enables remote monitoring, centralized fleet management, and integration into LIMS or MES platforms. Audit trail functionality complies with FDA 21 CFR Part 11 requirements when paired with user access controls and electronic signature modules. Calibration certificates for irradiance sensors and PT100 temperature probes are provided with each unit and traceable to NIST standards.

Applications

• Accelerated photodegradation testing of polypropylene, ABS, PC, PMMA, and TPU components used in automotive exteriors and lighting systems.
• Evaluation of UV stabilizer efficacy and pigment fade resistance in architectural coatings and plastic cladding.
• Validation of weatherability for LED housing materials, road signage polymers, and outdoor electrical enclosures.
• Correlation studies between laboratory xenon exposure and natural outdoor exposure (e.g., Florida or Arizona field sites) per ASTM G167 guidance.
• Lightfastness assessment of polymer-based medical packaging films subjected to ambient pharmacy lighting conditions.

FAQ

What spectral filters are used to meet ISO 4892-2 Class A requirements?

The chamber uses borosilicate inner and quartz outer filters to achieve the specified daylight-filtered spectrum; optional Daylight-Q filter sets are available for extended UV transmission per ISO 11341.

Can the system perform cyclic tests combining light, rain, and dark condensation phases?

Yes—fully programmable multi-segment cycles allow independent definition of irradiance level, temperature, humidity, and spray activation for each phase, supporting ASTM D4329 and ISO 4892-2 cyclic protocols.

Is lamp calibration and spectral verification included with delivery?

Each unit ships with factory-calibrated irradiance sensors and a spectral verification report; annual recalibration services are available with NIST-traceable documentation.

How is sample rotation synchronized with irradiance measurement?

The turntable drive is integrated with the controller’s timing logic; irradiance is measured at the sample plane using a fixed broadband sensor, and rotational speed is adjusted to maintain ±5% irradiance uniformity across the exposure area.

Does the chamber support compliance with automotive OEM-specific test standards?

Yes—the OK-XD series meets the irradiance stability, temperature uniformity, and humidity control tolerances required by GMW14124, Ford CETP 00.00-L-467, and VW PV3929 when configured with appropriate filters and calibration.