In the footwear industry, appearance is inseparable from quality. White and light-colored materials—from uppers and linings to outsoles and adhesives—are particularly vulnerable to yellowing caused by sunlight exposure, compromising both aesthetic appeal and perceived value. At Guangdong Lixian Instruments Co., Ltd. , we provide precision testing equipment designed to help footwear manufacturers validate material stability and ensure long-lasting product beauty. Our HZ-2009A Discoloration & Aging Test Chamber delivers controlled, accelerated simulation of sunlight and heat exposure, enabling reliable assessment of material resistance to yellowing and thermal degradation -
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Why Discoloration & Aging Testing is Essential for Footwear Materials
Shoes are exposed to diverse environments—store displays, warehouse storage, and outdoor use—where ultraviolet radiation and elevated temperatures can trigger chemical changes in polymers, dyes, and adhesives. Without proper testing, manufacturers risk -3:
Unsightly yellowing of white or light-colored materials that diminishes product appeal
Degradation of mechanical properties in soles and adhesives, compromising performance
Loss of brand reputation due to premature appearance failure
Customer complaints and increased return rates
The HZ-2009A Discoloration & Aging Test Chamber from Guangdong Lixian Instruments Co., Ltd. simulates these real-world conditions in a controlled laboratory environment, enabling manufacturers to predict material behavior and ensure compliance with industry standards -6.
Key Features of the HZ-2009A Discoloration & Aging Test Chamber
Dual-Function Capability: Performs both aging tests (thermal degradation) and discoloration tests (UV-induced yellowing) in a single unit, offering exceptional versatility for footwear material evaluation -4. This dual-purpose design makes it an economical and space-efficient addition to any quality control laboratory.
Accelerated Testing Efficiency: The HZ-2009A provides remarkable time compression for material evaluation:
Aging Test: Simulates approximately 6 months of natural exposure in just 24 hours at 70°C, dramatically accelerating development cycles and enabling rapid material validation -1.
Discoloration Test: Replicates approximately 6 months of outdoor exposure in only 9 hours at 50°C, allowing quick assessment of UV resistance -2.
Precise UV Simulation: Equipped with a 300W OSRAM ultraviolet lamp, the system accurately replicates the critical spectrum of sunlight to assess photo-yellowing tendencies in footwear materials -1-6. This high-quality light source ensures that test results correlate meaningfully with real-world performance.
Uniform Temperature Distribution: Forced air circulation ensures consistent temperature throughout the chamber, with distribution accuracy of ±1% at 100°C for reliable, repeatable test results -1. This uniformity is essential for comparing different material formulations and production batches.
Robust Construction: The interior chamber is fabricated from SUS#304 stainless steel for corrosion resistance and easy cleaning, while the exterior features a durable painted finish for long-lasting performance in demanding laboratory environments -1.
User-Friendly Controls: The system includes an automatic calculation controller with 0-999 hour timer, power failure memory, and audible alarm for unattended operation, allowing flexible scheduling of tests without constant operator supervision -1.
Rotating Sample Turntable: A rotating turntable (45cm diameter, 10 R.P.M. ±2 R.P.M.) ensures uniform exposure of all specimens to UV radiation and heat, eliminating positional bias in test results -1.

Technical Specifications at a Glance
| Parameter | Specification -1-6 |
|---|---|
| Model | HZ-2009A Discoloration & Aging Test Chamber |
| Interior Dimensions | 40 × 40 × 45 cm |
| Exterior Dimensions | 91 × 55 × 100 cm |
| Temperature Range | Ambient to 200°C (300°C available by special order) |
| Temperature Display | 0.1°C resolution |
| Control Accuracy | ±3°C |
| Distribution Accuracy | ±1% at 100°C |
| UV Light Source | OSRAM 300W ultraviolet bulb |
| Turntable Speed | 10 R.P.M. ±2 R.P.M |
| Turntable Diameter | 45 cm |
| Heating Method | Forced air circulation |
| Timer Range | 0–999 hours, power failure memory, with audible alarm |
| Control System | Automatic calculation controller |
| Safety Protection | EGO over-temperature shutdown indicator, safety overload switch, ammeter |
| Interior Material | SUS#304 stainless steel |
| Exterior Finish | High-grade baked enamel |
| Weight | 87 kg |
| Power Supply | 1∮, AC220V, 19.5A |
Standards Compliance for Global Acceptance
The HZ-2009A Discoloration & Aging Test Chamber supports testing in accordance with key international and national standards for footwear materials -1-6:
ASTM D1148 – Standard Test Method for Rubber Deterioration—Discoloration from Ultraviolet (UV) or UV/Visible Radiation and Heat Exposure of Light-Colored Surfaces
CNS-3556 – Chinese National Standard for rubber and plastic testing
JIS-K6301 – Japanese Industrial Standard for physical testing of rubber
ASTM-D2436 – Standard Specification for Forced-Convection Laboratory Ovens for Electrical Insulation
GB/T16585-1996 – Chinese standard for rubber, vulcanized—Test method of resistance to artificial weathering (fluorescent UV lamp)
GB14522-93 – Chinese standard for accelerated weathering test method for plastics, coatings, and rubber materials
GB/T16422.3-97 – Plastics—Methods of exposure to laboratory light sources—Part 3: Fluorescent UV lamps
Driving Quality and Innovation in Footwear Manufacturing
Whether you are developing new material formulations, validating supplier consistency, or conducting routine quality control, the HZ-2009A Discoloration & Aging Test Chamber provides critical insights to -5-7:
Predict and prevent yellowing in white and light-colored materials before they reach consumers
Optimize material formulations for enhanced UV and thermal resistance, extending product life
Ensure compliance with international footwear standards and customer specifications
Reduce the risk of field failures and protect brand reputation
Accelerate development cycles through reliable accelerated testing
Validate adhesive performance under elevated temperature conditions
Assess sole material durability for long-term wear and appearance retention
A Trusted Partner in Precision Testing
As a leading manufacturer of testing instruments and detection equipment, Guangdong Lixian Instruments Co., Ltd. combines decades of instrument R&D experience with deep industry knowledge. Founded in 2000 and headquartered in Dongguan, Guangdong province, the company operates a modern 6000-square-meter production facility and serves clients in over 60 countries with products certified to CE, ISO, ASTM, and other international standards -3-8.
Our professional R&D team, rigorous quality management systems, and advanced manufacturing capabilities ensure that every HZ-2009A undergoes strict quality inspection, performance testing, and validation before shipment, guaranteeing stable and reliable long-term operation in demanding laboratory or production environments -8.

Comprehensive Customer Support
Beyond high-quality testing equipment, Guangdong Lixian Instruments Co., Ltd. provides complete support to ensure your success:
Pre-sales consultation: Expert guidance to select appropriate test methods and equipment parameters based on your specific footwear materials and quality requirements
Installation and training: On-site commissioning and operation training to ensure your team quickly masters equipment use
After-sales service: Professional maintenance team providing timely repairs, spare parts replacement, and technical support to minimize production disruption
Maintenance guidance: Detailed recommendations for proper care, including optimal environmental conditions (8°C–23°C), regular cleaning procedures, and periodic通电 to maintain system integrity during extended inactivity -1-6
Test with Confidence, Deliver with Pride
In an industry where first impressions matter, equip your laboratory with testing equipment that ensures your materials maintain their beauty and performance. The HZ-2009A Discoloration & Aging Test Chamber from Guangdong Lixian Instruments Co., Ltd. offers the precision, reliability, and standards compliance needed to validate footwear materials against the harshest environmental challenges—from store lighting to outdoor wear.
Contact Guangdong Lixian Instruments Co., Ltd. today to learn more about how our discoloration and aging testing equipment can enhance your footwear material evaluation processes. Request a detailed technical specification, arrange a product demonstration, or consult with our application specialists to discuss your specific testing requirements.
Guangdong Lixian Instruments Co., Ltd. — Preserving Beauty, Ensuring Durability, Advancing Footwear Quality.


