TY - GEN AU - Eric P Whitenton Ruff C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1989-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.89-4107 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1989 TI - A computer-controlled test system for operating different wear test machines: ER -