TY - GEN AU - Hsia, Jack J C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1975-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.594-10 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1975 TI - Optical radiation measurements ::the NBS 20-, 60-, and 85- degree specular gloss scales ER -