TY - GEN AU - George W Burns AU - Dean Ripple C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2002-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.260-134 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2002 TI - Standard Reference Materials ::Standard reference material 1749 / ER -