Shaft diameter: ø3mm
Calibration details: This batch of Brinell indenter balls will be taken from a bonded batch of balls which comply to the requirements of DIN EN ISO 6506-2 and ASTM E10 (for this compliance assessment measurement uncertainty was not taken into account) and will be calibrated and certified for diameter, hardness, roughness and density, by UPI Laboratories.
Calibration temp.: (23 ± 2) °C
Relative humidity: < 70 %rh
Uncertainty: The reported expanded uncertainty is based on the standard uncertainty of the measurement multiplied by a coverage factor k, such that the coverage propability corresponds to approximately 95%. The standard uncertainty is determined in accordance with EA 04/2.
Traceability: The measurements are executed using standards for which the traceability to (inter) national standards has been demonstrated towards the RvA.