Measuring the Light Reflectance Value (LRV) and its Importance in Safety Regulations 1

BYK-Gardner spectro-guide. Photo courtesy of BYK-Gardner.

BYK-Gardner spectro-guide.
Photo courtesy of BYK-Gardner.

The BYK-Gardner color-guide and spectro-guide contain many common and useful color indices. One can change the instrument to most of the widely used color systems: CIE, Lab (hunter), Spectrum, XYZ, Yxy, FMC2 and others. You can also change the instrument to a number of different indices to measure color difference, whiteness, yellowness, opacity and strength. But nowhere in these lists are any indications of the LRV of the color you are measuring. More…