TY - GEN AU - May, Willie AU - Parris, Reenie AU - Beck, C. AU - Fassett, John AU - Greenberg, Robert AU - Guenther, Franklin AU - Kramer, Gary AU - Wise, Stephen AU - Gills, T AU - Gettings, R AU - MacDonald, Bruce C2 - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD DA - 2000-01-01 LA - en PB - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD PY - 2000 TI - Definitions of Terms and Modes Used at NIST for Value-Assignment of Reference Materials for Chemical Measurement ER -