JAS METROLOGY S.A.C

(A2LA Cert. No. 7692.01) 01/13/2026 Page 1 of 7 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 JAS METROLOGY S.A.C Cal. San Hernán 2H 13B1 INT. 4 Urb. Sta Luisa, Los Olivos Lima, PERÚ 051 Richard Kevin Ayala Puente Phone: 998260341 CALIBRATION Valid To: January 31, 2028 Certificate Number: 7692.01 In recognition of the successful completion of the A2LA evaluation process (including an assessment of the organization’s compliance with A2LA’s R102 – Calibration Program Requirements), accreditation is granted to this laboratory to perform the following calibrations1, 5: I. Chemical Parameter/Equipment Range CMC2 (±) Comments pH Meters3 4 pH 7 pH 10 pH 0.012 pH 0.012 pH 0.012 pH PC-020 procedure for the calibration of pH meters, 2nd edition, 2017, INACAL Conductivity Meters3 5 µS/cm 10 µS /cm 100 µS /cm 1000 µS /cm 1413 µS /cm 10 000 µS /cm 0.62 µS/cm 0.62 µS/cm 2.1 µS/cm 4.8 µS/cm 5 µS/cm 40 µS/cm PC-022 procedure for the calibration of electrolytic conductivity meters (conductivity meters), 2nd edition, 2023, INACAL Turbidimeters3 1 NTU 5 NTU 20 NTU 100 NTU 500 NTU 1000 NTU 0.061 NTU 0.071 NTU 0.40 NTU 2.0 NTU 4.9 NTU 6.1 NTU MV-001: procedure for the calibration of turbidity meters, rev. 00:2025 JAS

(A2LA Cert. No. 7692.01) 01/13/2026 Page 7 of 7 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 su ch 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 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. 5 This scope meets A2LA’s P112 Flexible Scope Policy. 6 In the statement of CMC, V is the numerical value of the nominal volume, expressed in the units indicated.