TY - GEN AU - Freeman, David H C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1967-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.429 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1967 TI - Separation and purification section::summary of initial activities, February 1966 through June 1967. ER -