Retro-Reflective Coefficient Tester

The Retro-Reflective Coefficient Tester is a precision instrument designed to evaluate the retro-reflective performance of high-visibility safety materials, including professional occupational warning garments and reflective school uniforms for children. By accurately measuring the retro-reflection coefficient, the system provides objective and reproducible data for quality assessment, ensuring compliance with national and international safety standards.

Standards

The system supports compliance with the following standards:

GB/T 28468-2012 – Method for Measuring Retro-Reflective Coefficient of School Safety Uniforms (Appendix A)

GB 20653-2020 – Method for Measuring Retro-Reflective Coefficient of High-Visibility Protective Clothing (Appendix C)

GB/T 18833-2012 – Road Traffic Reflective Film

GB/T 26377-2010 – Retro-Reflective Measurement Instruments

JT/T 612-2004 – Retro-Reflective Measurement Instruments

ASTM E808 – Standard Guide for Description of Retro-Reflective Materials

ASTM E809 – Standard Test Method for Measurement of Retro-Reflector Optical Performance

ASTM E810 – Standard Test Method for Retro-Reflective Coefficient of Sheeting Materials

DIN 67520 – Minimum Luminance Requirements for Traffic Safety Reflective Materials

Parameters

Parameter	Specification
Measurement Range	0–3000 cd/(lx·m²)
Measurement Accuracy	±0.1 cd/(lx·m²) using microphotometric acquisition system
Observation Angle	0°–2°, adjustable, ±0.002°
Incidence Angle	-45° to 45°, adjustable, ±1°
Light Source	Standard illuminant A, color temperature 2856 K, uniform vertical illuminance
Detector	Silicon photodiode with CIE-corrected spectral filter, V(λ) compliance
Sample Reference Center	Aperture subtended angle 12′, vertical illuminance uniformity ≤5%
Detector Movement	Vertically adjustable, observation angle 12′–120′
Calibration Angles	Up to 12 angle pairs can be calibrated at once
Data Storage	Up to 10.000 test records
Screen	4.5" touchscreen, 854 × 480 resolution
Storage Method	TF card
Sample Fixture	Quick-change structure for easy mounting
Calibration Plates	One black and one white calibration plate included
Power Supply	AC 220 V, 50 Hz, 500 W
Weight	Approx. 10 kg

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