Overview
Inverse reflection standards are divided into reference standards and working standards according to their uses and calibration methods. The reference standard is used as a reference standard to specify the calibrated Retroreflectometer in a given organization or region, and the working standard is suitable for the self-calibrated Retroreflectometer.
Features
1. Including reverse reflection marking standard, reverse reflection marking standard and protruding road marking standard
2. Reverse reflection marking standard is made of reflective film and Aluminum Panel that meet the requirements of GB/T 18833. It is divided into type 1, type 2 and type 3. Colors include white, yellow, red, green and blue
3. Reverse reflection marking standard is made of marking tape and Aluminum Panel that meet the requirements of GB/T24717. Colors include white and yellow
4. The raised road sign standard is composed of an engineering plastic matrix and a micro-prism type reverse reflection device. Colors include white and yellow
Principle
Inverse reflection standards provide standardized inverse reflection performance by combining their specific inverse reflection material (e.g. reflective film, reticle tape, or microprism type inverse reflectors) with a substrate (e.g. Aluminum Panel or engineering plastic substrate) for calibrating Retroreflectometers. The reference standard is used to specify the calibrate, and the working standard is used for self-calibrating.
Applications
Retroreflectometer calibrating, traffic sign marking inspection, road safety facility verification
Standards
GB/T 18833、GB/T24717、GB/T24725
Notice
• The effective reflective area of the reverse reflection mark standard is generally not less than 50mm * 50mm
• The effective area of the reverse reflection marking standard is generally not less than 100mm * 500mm
• Dimensions of the raised road sign standard should meet the requirements of A2 raised road signs in GB/T24725
• The inverse reflection coefficient of the standard should not be less than the relevant standards