TY - GEN AU - Tholen, Albert D AU - Barbrow, Louis E AU - Heffernan, Ann P C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1985-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.684 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1985 TI - Report of the 69th National Conference on Weights and Measures: ER -