References
Surface Roughness Reference R_521E
626106-9390-020
Application
Roughness standard R_521E Set for mounting on surface standard holder (SSH). Precision reference elements have surfaces with profiles that are intended for checking and calibrating the metrological properties of a surface measuring device.
- Made from electroformed nickel
- Hard protective layer of nickel-boron
- Roughness parameters engraved on references
Details
- Corresponds to ISO 5436-1 type B 2
- Parameter values: RSm = 15 µm / Pt = 1.6 µm
- Roughness parameter Ra = 0.4 µm / = 15 µ
- Form: Saw-tooth curve
- Includes ZEISS Calibration Certificate
- Includes carry case