HZ-2118B UV Yellowing Resistance Tester

The HZ-2118B UV yellowing resistance tester simulates ultraviolet exposure to evaluate yellowing and color change in footwear materials. The results can support formulation control and help predict color changes during storage and container transport. A common three-hour test is used as an accelerated reference equivalent to approximately three months in a shipping container, subject to the selected method.

Applicable standard: ASTM D1148.

Technical specifications:

1. Specimen turntable: 450 mm diameter; adjustable 0–50 rpm.

2. Temperature: ambient to 150°C.

3. Heating: forced hot-air circulation.

4. Timer: 24 hours.

5. Light intensity: adjustable.

6. Internal dimensions: 500 × 500 × 450 mm.

7. External dimensions: 1,000 × 650 × 1,170 mm.

8. Test lamp: OSRAM 300 W UV lamp.

9. Weight: 95 kg.