TY - GEN AU - Carl W Coblentz AU - Paul R Achenbach C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1959-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.6408 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1959 TI - Performance tests of two throw-away type "Dustgard" air filters ::manufactured by American Rock Wool Corporation Wabash, Indiana ER -