TY - GEN AU - Georgia L Harris C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2018-02-01 05:02:00 DO - https://doi.org/10.6028/NIST.IR.6969-2018 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2018 TI - Selected laboratory and measurement practices and procedures to support basic mass calibrations: ER -