TY - GEN AU - Gentry, Elizabeth C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2019-05-01 04:05:00 DO - https://doi.org/10.6028/NIST.HB.143-2019 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2019 TI - State weights and measures laboratories program handbook::6th edition ER -