PCB Piezotronics of North Carolina, Inc. d.b.a. Endevco

(A2LA Cert. No. 1862.02) Revised 02/25/2026 Page 3 of 4 Parameter/Equipment Range CMC2, 3, 5 (±) Comments Vibration General Purpose – Sensitivity Phase – Measure Accelerometers Low Frequency – Sensors (≥5 to <10) Hz ≥10 Hz to <5 kHz (≥5 to <11) kHz (≥11 to <16) kHz (≥16 to ≤20) kHz (≥0.5 to <10) Hz (≥10 to <200) Hz ≥200 Hz to ≤1 kHz 1° 0.75° 1.5° 2° 3° 2.5° 0.75° 1.5° Reference accelerometer, back-to-back comparison method Reference accelerometer with long stroke shaker, back-to-back comparison method Impulse Force Sensitivity (Voltage/Force) – Measure Up to 5000 lb Up to 1000 Hz 3.8 % 3.8 % Quartz reference accelerometer III. Time & Frequency Parameter/Equipment Range CMC2, 3, 5 (±) Comments Angular Rate – Measuring Equipment Up to 3000 °/s 0.3 % Acutronic AC1120S __________________ 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 behavior of the customer’s device and to influences from the circumstances of the specific calibration. 3 In the statement of CMC, percentage (%) refers to percent of reading, unless otherwise noted. 4 CMCs for Vibration parameters are for Sensitivity (accelerometer/sensor) or Acceleration level (shakers).

(A2LA Cert. No. 1862.02) Revised 02/25/2026 Page 4 of 4 5 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. 6 This scope meets A2LA’s P112 Flexible Scope Policy.