Unlimited Services

(A2LA Cert. No. 1446.01) 07/17/2024 Page 1 of 2 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 UNLIMITED SERVICES, INC. 1321 Cedar Street Port Huron, MI 48060 Wayne Mattise Phone: 586 727 8890 CALIBRATION Valid To: August 31, 2026 Certificate Number: 1446.01 In recognition of the successful completion of the A2LA evaluation process (including an assessment of the organization’s compliance with A2LA’s Calibration Program Requirements) , accreditation is granted to this laboratory to perform the following calibrations 1, 4: I. Dimensional Parameter/Equipment Range CMC2 (±) Comments Optical Comparators & Measuring Machines 3 – Length of Travel Magnification Table Squareness Angularity Up to 6 in Up to 8 in Up to 12 in 10x to 100x 3 in (0 to 180)° 0.000 20 in 0.000 24 in 0.000 32 in 0.038 % of Magnification 0.000 19 in 1.1 arc min Glass master scales Glass grid Glass grid Angle & gage blocks _____________________________________________ 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.