TY - RPRT TI - Automation and upgrade of the 27.1 kN dead weight machine at the National Institute of Standards and Technology AU - Chesnutwood, Kevin L AU - Ho, Samuel L PY - 2006 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 7309 DO - 10.6028/NIST.IR.7309 ER -