TY - RPRT TI - Certification of Standard Reference Material 1270a : Cr-Mo low alloy steel A336 (F-22) (disk form) AU - Scruggs, Bruce AU - Sieber, John R AU - Paul, Rick AU - Chen-Meyer, Heather AU - Marlow, Anthony F AU - Yen, James H PY - 2022 PB - National Institute of Standards and Technology (U.S.) CY - Gaithersburg, MD SN - NIST SP 260-231 DO - 10.6028/NIST.SP.260-231 ER -