TY - RPRT TI - Certification of Standard Reference Material 3289 multivitamin tablets AU - Hayes, Hugh V AU - Mulloor, Jerome AU - Nelson, Michael A AU - Rimmer, Catherine A AU - Regalado, Laura AU - Yen, James H AU - Yu, Lee L PY - 2022 PB - National Institute of Standards and Technology (U.S.) CY - Gaithersburg, MD SN - NIST SP 260-220 DO - 10.6028/NIST.SP.260-220 ER -