Phase II 900355-1000 Brinell Hardness Rectangular Test Block (Steel), 1000 kg, for All Ranges, Certified (USA)
All of Phase II Made in USA Brinell Hardness Test Blocks come certified to applicable standards. We adhere to a strict procedure for the calibration of these blocks, and the accuracy of the tester is maintained using a proving ring and load cell both traceable to N.I.S.T. The readings themselves are done using a stage micrometer also calibrated and traceable to N.I.S.T.