Absolute Method Retro-Reflective Coefficient Tester
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Whats/App: +86 181 0160 0864
The Absolute Method Retro-Reflective Coefficient Tester is a precision instrument designed to evaluate the retro-reflective performance of high-visibility safety materials under both dry and simulated rain conditions. It accurately measures the retro-reflection coefficient of sample surfaces, making it suitable for occupational high-visibility warning garments and other visibility safety apparel to ensure personnel safety and compliance with national standards.
Application
The tester is suitable for a wide range of applications:
Traffic Safety Materials: Assessing retro-reflective performance of road and railway signs, traffic safety uniforms, and school uniforms for visibility compliance.
Occupational Safety Garments: Evaluating high-visibility protective clothing worn by various professionals for safe warning and visibility.
Vehicle Inspection: Measuring reflective markings on trucks and commercial vehicles.
Quality Control: Testing reflective vests, license plates, and other materials for retro-reflective compliance.
Standards
The system supports compliance with the following standards:
GB 20653-2020 – Occupational High-Visibility Warning Clothing, Appendices C.4.1 (Absolute Method) and D
GB/T 28468-2012 – School Traffic Safety Reflective Uniforms
ASTM E808 – Standard Guide for Description of Retro-Reflective Materials (Reference)
ASTM E810 – Standard Test Method for Retro-Reflective Coefficient of Sheeting Materials (Reference)
DIN 67520 – Minimum Luminance Requirements for Traffic Safety Reflective Materials (Reference)
Parameters
Features
High-resolution microphotometric acquisition system for precise measurements
Infrared distance measurement for accurate positioning between main console and sample table
Wireless communication module for cable-free control and data transfer
Two measurement modes: fixed-point and scan, for flexible data acquisition
Precision motor-driven positioning with low noise
Automatic adjustment of incidence and observation angles for simplified testing
Stable light source with uniform vertical illuminance
Steady water spray system with collection trays and overflow control for wet testing
Quick-change sample fixture for efficient sample mounting
Core 32-bit multifunction mainboard for reliable control
Color touchscreen with menu-driven interface and metal keys
Automatic data output and report generation
Compatible with connected software for real-time data analysis
Enclosed dark test channel to minimize ambient light interference
Accessories
Main unit
Product certificate
User manual
Delivery note
Acceptance form
Product brochure
Test Procedures
Sample Preparation
Randomly cut four samples of 150 × 150 mm.
Pre-treat samples according to standard or customer requirements.
Parameter Setup
Configure general test parameters, file names, and number of test repetitions.
Testing
Install sensors on the sample table and secure connections.
Turn on the light source and select dry condition test to start measurement.
For wet testing, adjust spray nozzle and water flow to cover the sample, maintain stable spray for at least 2 minutes before measurement.
Data Recording
Acquire data in real-time via the software interface.
Generate reports comparing dry and wet retro-reflective performance.
Maintenance Information
Regularly clean light source, sensors, and spray nozzle to maintain accuracy
Inspect sample fixtures and motor-driven mechanisms for smooth operation
Calibrate system periodically in both dry and wet conditions
Verify touchscreen and software data acquisition function before each test
Store system in a dark, dust-free environment to prevent light or sensor degradation
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