TY - GEN AU - Keysar, Blayne C C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1971-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.HB.105-3 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1971 TI - Specifications and tolerances for reference standards and field standard weights and measures 3. specifications and tolerances for metal volumetric field standards: ER -