What Does GBR Stand For?
GBR stands for Glass Bead Rating
GBR, or Glass Bead Rating, is a standardized measure used to evaluate the reflective performance of glass bead materials in various applications, particularly in road markings and safety signage. This rating quantifies the effectiveness of glass beads in enhancing visibility under different lighting conditions, thereby contributing to safety and compliance in traffic management and outdoor signage.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym