TY - GEN AU - Colbert, J AU - Fassett, J AU - Gettings, R AU - Gills, T AU - Greenberg, R AU - Guenther, F AU - Kramer, G AU - MacDonald, B AU - Parris, R AU - Wise, S AU - May, W C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2000-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.260-136 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2000 TI - Standard Reference Materials:Definitions of terms and modes used at NIST for value-assignment of reference materials for chemical measurements ER -