TY - RPRT TI - Interlaboratory comparison of force calibrations using ATSM Method E74-74 : Phase I AU - Peterson, R W AU - Bloss, R L PY - 1976 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 76-1145 DO - 10.6028/NBS.IR.76-1145 ER -