TY - RPRT TI - Technical activities 1985 : Center for Analytical Chemistry AU - Durst, R A AU - Hertz, H S AU - Taylor, J K PY - 1985 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 85-3272 DO - 10.6028/NBS.IR.85-3272 ER -