TY - GEN AU - Weidner, Victor R C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1983-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.260-82 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1983 TI - Standard Reference Materials ::White opal glass diffuse spectral reflectance standards for the visible spectrum (SRM's 2015 and 2016)/ ER -