TY - GEN AU - T A Siewart AU - D P Vigliotti C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2000-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.960-4 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2000 TI - NIST recommended practice guide ::installing, maintaining, and verifying your charpy impact machine/ ER -