TY - GEN AU - Jessica Reiner AU - Benjamin Place AU - N. Alan Heckert AU - Katherine Peter AU - Alix Rodowa C2 - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD DA - 2023-02-13 05:02:00 DO - https://doi.org/10.6028/NIST.SP.260-234 LA - en PB - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD PY - 2023 TI - Characterization of Reference Materials 8690 to 8693 UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935938 ER -