Pioneer Industrial Laboratories Company

(A2LA Cert. No. 4913.04) Revised 02/03/2026 Page 1 of 7 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 PIONEER INDUSTRIAL LABORATORIES COMPANY Building 6981 Asim Bin Al Khattab Street ,Al Rimal District Al Riyadh, 13263 SAUDI ARABIA Husam Saban Phone: +966 53854 4638 technical@pioneerlab-sa.com CALIBRATION Valid To: July 31, 2026 Certificate Number: 4913.04 In recognition of the successful completion 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 to perform the following calibrations1, 6: I. Chemical Parameter/Equipment Range CMC2 (±) Comments pH Meter 4.0 pH 7.0 pH 10.2 pH 0.0065 pH 0.0073 pH 0.0082 pH Standard buffer solutions Conductivity Meter (Fixed Points 84 µS/cm 1413 µS/cm 0.0059 µS/cm 0.82 µS/cm Standard conductivity solutions II. Dimensional Parameter/Equipment Range CMC2 (±) Comments Caliper (Vernier, Dial & Digital) Up to 300 mm 19 µm Step gage, gage blocks (slip gauges) Height Gauge (Vernier, Dial, Digital) Up to 600 mm 11 µm Gage blocks (slip gauges), surface plate Dial Indicator/Gauge Up to 30 mm 5.8 µm Gage blocks (slip gauges)

(A2LA Cert. No. 4913.04) Revised 02/03/2026 Page 2 of 7 Parameter/Equipment Range CMC2 (±) Comments Micrometers (Digital & Mechanical) Up to 25 mm 0.79 µm Gage blocks (slip gauges) LVDT Transducer3 Up to 50 mm 4.3 µm Gage blocks (slip gauges) Pin Gauge Up to 10 mm 1.5 µm Digital micrometer Plain Plug Gauge Up to 25 mm 1.9 µm Digital micrometer Feeler Gauge Up to 2 mm 1.1 µm Digital micrometer Thickness Gauge (Mechanical & Electronic) Up to 50 mm 6.4 µm Gage blocks (slip gauges) Caliper Checker Up to 300 mm 18 µm Height gauge Straight Edge Length Flatness Height 3 m (0.04 to 1) mm Up to 50 mm 0.39 mm 0.000 95 mm 0.018 mm Length measuring tool Feeler gauge Height gauge Length Measurement Measuring Length of: Soil Compact Los Angelos Casagrande Asphalt compactor Resilience Tester Up to 300 mm 500 mm 2000 mm 300 mm 500 mm Up to 300 mm 10 µm 0.16 mm 0.26 mm 0.023 mm 0.16 mm 0.073 mm Digital caliper, steel ruler, measuring tape Testing Sieves (0.075 to 0.85) mm (0.85 to 2.36) mm (3.35 to 125) mm 1.1 µm 4.7 µm 44 µm Digital microscope Digital caliper

(A2LA Cert. No. 4913.04) Revised 02/03/2026 Page 7 of 7 VI. Time & Frequency Parameter/Equipment Range CMC2 (±) Comments Stop Watches Up to 5 Hour 0.74 s Stopwatch __________________ 1 This laboratory offers commercial calibration and field calibration services. 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, % represents % of reading unless otherwise noted. 5 The contributions from the “best existing device” are not included in the CMC claim. 6 This scope meets A2LA’s P112 Flexible Scope Policy. 7 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.