Rockwell Superficial Master Hardness Test Blocks – ANAB ILAC-MRA ISO/IEC 17025
ISO/IEC 17025 accredited master hardness test blocks for Rockwell superficial scales (15N–45T) — ILAC-MRA, ASTM-compliant certificate plus ISO certificate. Mirror surface, Ø 60 × 10 mm.
Specifications
- Hardness Scale & Range
- HR15N — 70 < HR15N < 77, HR15N — 78 < HR15N < 88, HR15N — 89 < HR15N < 91, HR15T — 77 < HR15T < 80, HR15T — 80 < HR15T < 83, HR15T — 88 < HR15T < 93, HR30N — 42 < HR30N < 54, HR30N — 55 < HR30N < 73, HR30N — 74 < HR30N < 80, HR30T — 49 < HR30T < 56, HR30T — 57 < HR30T < 63, HR30T — 73 < HR30T < 82, HR45N — 20 < HR45N < 31, HR45N — 32 < HR45N < 61, HR45N — 62 < HR45N < 70, HR45T — 23 < HR45T < 33, HR45T — 34 < HR45T < 43, HR45T — 58 < HR45T < 72
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