"NAME STD,EDDY CURRENT; DEPTH 12.0IN,WEIGHT 25 LBS.; STANDARD IS FABRICATED WITH KNOWN SIZE DEFECTS PLACED IN STRATEGIC LOCATIONS AND POSITIONS AND SIZE OF DAMAGE TO BE ENCOUNTERED; THE STANDARD WILL HAVE 4EDM NOTCHES PLACEDIN RIM AREA OF THE WHEEL AND ONE IN THE BODY; NOTCHES 0.030 IN RADIUS DEPTH PORM 10 PERCENT AND 0.005 IN WIDTH MAX"