TY - GEN AU - K D Mielenz AU - R A Velapoldi C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1980-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.260-64 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1980 TI - Standard Reference Materials ::A fluorescence standard reference material / ER -