TY - GEN AU - Taylor, J K AU - Deardorff, E R AU - Olson, C D AU - Burke, R W C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1973-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.73-400 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1973 TI - Preparation of simulated environmental filters containing quartz and clay: ER -