Victor R. Weidner

• Holmium oxide solution
• NBS measurement services
• Preparation and calibration of first-surface aluminium mirror specular reflectance standards
• Preparation and calibration of first-surface aluminum mirror specular reflectance standards
• Spectral reflectance
• White opal glass diffuse spectral reflectance standards for the visible spectrum (SRM's 2015 and 2016)