ELECTRICAL TEST INSTRUMENTS

(A2LA Cert. No. 5636.02) 3/24/2026 Page 2 of 12 Parameter/Equipment Range CMC2, 5 (±) Comments Indicators3 (0.0001 to 1.5) in 2.5 µm to 38.1 mm (58 + 1L) µin (1.5 + 0.001L) µm Gage blocks Gage blocks Height Gages3 (0.05 to 24) in (1.27 to 609.6) mm (120 + 9L) µin (2.9 + 0.009L) µm Mitutoyo 515-565, Starrett 234A Mitutoyo 515-565, Starrett 234A III. Electrical – DC/Low Frequency Parameter/Equipment Range CMC2, 4 (±) Comments DC Voltage – Measure3 72 µV to 330 mV 330 mV to 3.3 V (3.3 to 33) V (30 to 330) V (100 to 1020) V 4.3 µV + 0.006 % 18 µV + 0.005 % 200 µV + 0.005 % 2 mV + 0.0055 % 1.5 mV + 0.0055 % Fluke 5500A DC Voltage – Generate3 (2.4 to 100) mV 100 mV to 1 V (1 to 10) V (10 to 100) V (100 to 1000) V 1 µV + 0.0007 % 1 µV + 0.0006 % 2 µV + 0.0006 % 32 µV + 0.0008 % 10 mV + 0.0008 % HP 3458A opt 002 DC Current – Measure3 Toroidal Clamp-On (1.44 to 3.3) mA (3.3 to 33) mA (33 to 330) mA (0.33 to 2.2) A (2.2 to 11) A (11 to 16.5) A (16.5 to 150) A (150 to 550) A 0.05 µA + 0.013 % 0.25 µA + 0.01 % 3.3 µA + 0.01 % 44 µA + 0.03 % 330 µA + 0.06 % 0.002 A + 0.25 % 0.015 A + 0.25 % 0.05 A + 0.25 % Fluke 5500A Fluke 5500A w/ coil

(A2LA Cert. No. 5636.02) 3/24/2026 Page 3 of 12 Parameter/Equipment Range CMC2, 4 (±) Comments DC Current – Generate3 (0.13 to 100) nA 100 nA to 1 µA (1 to 10) µA (10 to 100) µA 100 µA to 1 mA (1 to 10) mA (10 to 100) mA 100 mA to 1 A 0.04 nA + 0.0035 % 0.04 nA + 0.0025 % 0.1 nA + 0.0025 % 0.8 nA + 0.0025 % 5 nA + 0.0025 % 50 nA + 0.0025 % 0.5 µA + 0.004 % 10 µA + 0.012 % HP 3458A opt 002 DC Resistance – Measure 3 50 mΩ to 11 Ω (11 to 33) Ω (33 to 110) Ω (110 to 330) Ω 330 Ω to 1.1 kΩ (1.1 to 3.3) kΩ (3.3 to 11) kΩ (11 to 33) kΩ (33 to 110) kΩ (110 to 330) kΩ 330 kΩ to 1.5 MΩ (1.1 to 3.3) MΩ (3.3 to 11) MΩ (11 to 33) MΩ (33 to 110) MΩ (110 to 330) MΩ 0.008 Ω + 0.012 % 0.015 Ω + 0.012 % 0.015 Ω + 0.009 % 0.015 Ω + 0.009 % 0.061 Ω + 0.009 % 0.078 Ω + 0.009 % 0.66 Ω + 0.009 % 0.81 Ω + 0.009 % 6.7 Ω + 0.011 % 8.7 Ω + 0.012 % 65 Ω + 0.015 % 110 Ω + 0.015 % 740 Ω + 0.06 % 6600 Ω + 0.1 % 26 kΩ + 0.5 % 88 kΩ + 0.5 % Fluke 5500A DC Resistance – Generate 3 (0.005 to 10) Ω (10 to 100) Ω 100 Ω to 1 kΩ (1 to 10) kΩ (10 to 100) kΩ 100 kΩ to 1 MΩ (1 to 10) MΩ (10 to 100) MΩ 100 MΩ to 1 GΩ 0.000 05 Ω + 0.0018 % 0.000 05 Ω + 0.0015 % 0.000 05 Ω + 0.0013 % 0.005 Ω + 0.0013 % 0.05 Ω + 0.0013 % 2 Ω + 0.0018 % 100 Ω + 0.0053 % 1 kΩ + 0.051 % 10 kΩ + 0.51 % HP 3458A opt 002

(A2LA Cert. No. 5636.02) 3/24/2026 Page 11 of 12 Parameter/Equipment Range CMC2 (±) Comments Torque – Tools3 (0.28 to 2.8) N·m (2.825 to 28.25) N·m (33.9 to 339) N·m (25 to 250) lbf·in (25 to 250) lbf·ft 0.028 N·m 0.28 N·m 3.5 N·m 2.5 lbf·in 2.6 lbf·ft AWS QCI-25 Mountz BMX250I Mountz BMX250F Mountz BMX250I Mountz BMX250F V. Thermodynamics Parameter/Equipment Range CMC2, 8 (±) Comments Temperature – Measure3 (-20 to 0) °C (0 to 420) °C (420 to 670) °C 0.026 °C 0.046 °C 0.067 °C Additel ADT282 w/ Accumac AMI 751 Temperature – IR Measuring Equipment 3 (50 to 500) °C 2 °C Fluke 9132 Relative Humidity – Measure3 (Fixed Points) 11.3 % RH 75 % RH 97 % RH 1.3 % RH 1.5 % RH 2 % RH Vaisala 19729HM Vaisala 19731HM Vaisala 19732HM Relative Humidity – Measuring Equipment3 (10 to 90) % RH 1.2 % RH Vaisala HMI41 w/ HMP46 VI. Time & Frequency Parameter/Equipment Range CMC2 (±) Comments Stopwatches & Timers3 (5 to 180) min 0.098 s HP 53181A Tachometers – Mechanical3 (575 to 3500) rpm 0.4 rpm Automation Direct CCT-AN-A120 counter

(A2LA Cert. No. 5636.02) 3/24/2026 Page 12 of 12 Parameter/Equipment Range CMC2, 6 (±) Comments Tachometers – Photo3 (60 to 100 000) rpm 1.2 rpm Fluke 5500A Oscilloscope – Time Markers3 (1,2,2.5,4,5 Sequence) 900.91 ns to 83 µs 83 µs to 55 s 0.000 025 % 0.0003 % Fluke 9500B/ 9530 __________________________________________ 1 This laboratory offers commercial 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 behavi or 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., r esolution, repeatability) 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 The stated measured values are determined using the indicated instrument (see Comments). This capability is suitable for the calibration of the devices intended to measure or generate the measured value in the ranges indicated. CMCs are expressed as either a specific value that covers the full range or as a percent or fraction of the reading plus a fixed floor specification. 5 L is the numerical value of the nominal length of the device measured in inches or millimeters, 6 In the statement of CMC, percentages are percentage of reading, unless otherwise indicated. 7 Wt is the numerical value of the nominal mass of the device measured in grams. 8 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. 9 This scope meets A2LA’s P112 Flexible Scope Policy.