TY - GEN AU - H Yakowitz AU - R E Michaelis C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1964-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.260-3 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1964 TI - Standard Reference Materials ::Metallographic characterization of an NBS spectrometric low-alloy steel standard/ ER -