TY  - RPRT
TI  - An approach to the metrologically sound traceable assessment of the chemical purity of organic reference materials 
AU  - Duewer, David L
AU  - Duewer, David L
AU  - Parris, Reenie M
AU  - White, Edward V
AU  - May, Willie E
AU  - Elbaum, Howard
PY  - 2004
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 1012
DO  - 10.6028/NIST.SP.1012
ER  -