TY - RPRT TI - Porous polymer tape screening program : EL-1259 research project 7864 : final report, December 1979 AU - Bur, A J PY - 1979 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 79-1772 DO - 10.6028/NBS.IR.79-1772 ER -