ITH Engineering

(A2LA Cert. No. 4151.01) Revised 03/21/2025 Page 1 of 4 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 ITH ENGINEERING INC. 5000 Prime Parkway McHenry, IL 60050 Dean Arnoldussen Phone: 815 363 4900 CALIBRATION Valid To: January 31, 2027 Certificate Number: 4151.01 In recognition of the successful co mpletion of the A2LA evaluation process (including an assessment of the organization’s compliance with R205 – A2LA’s Calibration Program Requirements), accreditation is granted to this laboratory at the location above as well as the three satellite laboratories listed below to perform the following calibrations 1, 4: I. Mechanical Parameter/Equipment Range CMC 2, 5 (±) Comments Pressure – Measure3 (0 to 60 000) psi (0 to 4136) bar (0 to 36 000) psi (0 to 2500) bar 3.4 bar 2.7 bar Additel model ADT681 digital pressure gauge Additel model ADT681A digital pressure gauge

(A2LA Cert. No. 4151.01) Revised 03/21/2025 Page 4 of 4 SATELLITE LABORATORY ITH ENGINEERING INC. C. Paseo del Poeta #36A Fracc. Jardines de Ramon Lopez Velarde Jerez, Zacatecas 99300 MEXICO Dean Arnoldussen Phone: 815 363 4900 I. Mechanical Parameter/Equipment Range CMC 2, 5 (±) Comments Pressure – Measure 3 (0 to 60 000) psi (0 to 4136) bar (0 to 36 000) psi (0 to 2500) bar 3.4 bar 2.7 bar Additel model ADT681 digital pressure gauge Additel model ADT681A digital pressure gauge _______________________________ 1 This laboratory offers commercial calibration service. 2 Calibration and Measurement Capability Uncertainty (C MC) 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 This scope meets A2LA’s P112 Flexible Scope Policy. 5 The type of instrument or material being calibrate d 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