Hitachi High-Tech America

(A2LA Cert. No. 3397.01) Revised 3/6/2025 Page 3 of 7 __________________________________ 1 This laboratory offers commercial calibration service and field calibration service. 2 Calibration and Measurement Capability Uncertainty (CMC) is the smallest uncertainty of measurement that a laboratory can achieve within its scope of accreditation when performing more or less routine calibrations of nearly ideal measurement standards or nearly ideal measuring equipment. CMCs represent expanded uncertainties expressed at approximately the 95% level of confidence, usually using a coverage factor of k=2. The actual measurement uncertainty of a specific calibration performed by the laboratory may be greater than the CMC due to the behavior of the customer’s device and to influences from the circumstances of the specific calibration. 3 Field calibration service is available for this calibration. Please note the actual measurement uncertainties achievable on a customer's site can normally be expected to be larger than the CMC found on the A2LA Scope. Allowance must be made for aspects such as the environment at the place of calibration and for other possible adverse effects such as those caused by transportation of the calibration equipment. The usual allowance for the actual uncertainty introduced by the item being calibrated, (e.g. resolution) must also be considered and this, on its own, could result in the actual measurement uncertainty achievable on a customer’s site being larger than the CMC. 4 In the statement of CMC, the value is defined as the percentage of reading unless otherwise noted. 5 The notation w/o is defined as weight percent. 6 The type of instrument or material being calibrated is defined by the parameter. This indicates the laboratory is capable of calibrating instruments that measure or generate the values in the ranges indicated for the listed measurement parameter

(A2LA Cert. No. 3397.01) Revised 3/6/2025 Page 4 of 7 Table 1: CMC values are in Weight Percent. The actual uncertainty associated with the calibration of the unit under test will vary depending on the element matrix involved. Element Concentration ( w/o) 5 Aluminum (Al) 0.08% Boron (B) 0.15% Carbon (C) 0.33% Cobalt (Co) 0.02% Chromium (Cr) 0.04% Copper (Cu) 0.06% Hydrogen (H) 0.21% Iron (Fe) 0.11% Lead (Pb) 1.07% Magnesium (Mg) 0.02% Manganese (Mn) 0.06% Molybdenum (Mo) 0.62% Nickel (Ni) 0.01% Nitrogen (N) 0.23% Phosphorus (P) 0.19% Silicon (Si) 0.3% Sulfur (S) 1.0% Tin (Sn) 0.04% Titanium (Ti) 0.5% Vanadium (V) 0.3% Zinc (Zn) 0.02%