WILSON - HR45TW

HARDNESS PATTERNS APPLICATION: VERIFICATION OF LABORATORY HARDNESS METERS.; ACCORDING TO THE NOMINAL VALUE OF 25, ROCKWELL HARDNESS STANDARDS TEST BLOCK, MUST BRING CERTIFICATE AND BE CALIBRATED BY THE NATIONAL INSTITUTE OF METROLOGY OR BY A BORATORY ACCREDITED IN THE CORRESPONDING MAGNITUDE AND RANK BY AN ACCREDITATION BODY SIGNING THE AGREEMENT ILAC MRA FOR CALIBRATION LABORATORIES (APPLIES ONLY FOR ARGENTINA), BRING CERTIFICATE OF I SO/IEC 17025 (APPLIES ONLY FOR TERNIUM MEXICO), BE CALIBRATED ACCORDING TO ASTM E18 / ISO 6508-3, AND MUST HAVE THE LETTER W IN THE VALUE TO BE USED WITH TUNGSTEN CARBIDE BADGE