TY - GEN AU - Charles M Hunt C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1967-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.9474 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1967 TI - Performance test at 2000 cfm of model HP-2A dry type replaceable filter ::manufactured by Farr Company Los Angeles, California ER -