TY - GEN AU - Regina R Montgomery AU - Jennifer E Benkstein C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2018-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.260-176-2018 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2018 TI - SRM NIST standard reference materials 2018 catalog: ER -