TY - GEN AU - Mackey, Elizabeth AU - Becker, Donald AU - Oflaz, Rabia AU - Greenberg, Robert AU - Lindstrom, Richard AU - Yu, Lee AU - Wood, Laura AU - Long, Stephen AU - Kelly, William AU - Mann, Jacqueline AU - MacDonald, Bruce AU - Wilson, Stephen AU - Brown, Zoe AU - Briggs, Paul AU - Budhan, James AU - Paul, Rick C2 - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD DA - 2004-06-01 LA - en PB - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD PY - 2004 TI - Certification of NIST Standard Reference Material 1575a Pine Needles and Results of an International Laboratory Comparison UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903454 ER -