TY - RPRT TI - Performance test of a four-pleat Dynel fiber filter : manufactured by Union Carbide Corporation, Linde Division, 270 Park Avenue, New York N.Y. 10017 AU - Hunt, Charles M PY - 1966 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS report ; 9404 DO - 10.6028/NBS.RPT.9404 ER -