The 10Spec™ Specular Reflectance Accessory is recommended for measuring the reflectivity of glass per the ASTM Standard E1585-93. It is compatible with the Spectrum One/100/400/65 and Spectrum 3/Frontier spectrometers.
This accessory may also be used to measure near-normal reflectivity of other surfaces such as military devices, reflecting optics, anti-reflective (AR) coated surfaces.