TY - GEN AU - Duewer, David L AU - Duewer, David L AU - Parris, Reenie M AU - White, Edward V AU - May, Willie E AU - Elbaum, Howard C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2004-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.1012 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2004 TI - An approach to the metrologically sound traceable assessment of the chemical purity of organic reference materials: ER -