Modern Machine & Tool

(A2LA Cert. No. 2836.01) 05/15/2025 Page 1 of 5 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 MODERN MACHINE & TOOL CO., INC. 11844 Jefferson Avenue Newport News, VA 23606-2587 Stephen Watson Phone: (757) 873-8224 CALIBRATION Valid To: April 30, 2027 Certificate Number: 2836.01 In recognition of the successful completion of the A2 LA evaluation process, (including an assessment of the organization’s compliance with R205 – A2LA’s Calibration Program Requir ements) accreditation is granted to this laboratory to perform the following calibrations 1, 8: I. Dimensional Parameter/Equipment Range CMC 2, 7 (±) Comments Micrometers – Outside: 0.0001 in Increments 0.001 in Increments Inside Depth Micrometers Standards Thread Micrometers Up to 12 in Up to 24 in (1 to 11) in Up to 12 in (1 to 11) in (11 to 48) in Up to 5 in 0.000 13 in 0.000 73 in 0.000 17 in 0.0012 in 0.000 59 in 0.000 86 in 0.0012 in Length standards 60° standards Gage Blocks (0.05 to 20) in 0.000 15 in Length standards Plain Plugs Up to 4 in 0.000 11 in Height master Pin Gages Up to 4 in 0.000 25 in Height master

(A2LA Cert. No. 2836.01) 05/15/2025 Page 3 of 5 Parameter/Equipment Range CMC2, 10 (±) Comments Resistance 3 – Measure (0 to 10) Ω (10 to 100) Ω 100 Ω to 1 kΩ (1 to 10) kΩ (10 to 100) kΩ 100 kΩ to 1 MΩ (1 to 10) MΩ (10 to 100) MΩ (100 to 1000) MΩ 18 µΩ/Ω + 60 µΩ 14 µΩ/Ω + 0.6 mΩ 12 µΩ/Ω + 0.6 mΩ 12 µΩ/Ω + 6 mΩ 12 µΩ/Ω + 60 mΩ 18 µΩ/Ω + 3 Ω 89 µΩ/Ω + 110 Ω 0.078 % + 1.2 kΩ 0.058 % + 12 kΩ Agilent 3458A Resistance 3 – Generate (1 to 10) Ω (10 to 100) Ω 100 Ω to 1 kΩ (1 to 10) kΩ (10 to 100) kΩ 100 kΩ to 1 MΩ (1 to 10) MΩ (10 to 100) MΩ 18 µΩ/Ω + 60 µΩ 14 µΩ/Ω + 0.6 mΩ 12 µΩ/Ω + 0.6 mΩ 12 µΩ/Ω + 6 mΩ 12 µΩ/Ω + 60 mΩ 18 µΩ/Ω + 3 Ω 89 µΩ/Ω + 110 Ω 0.078 % + 1.2 kΩ Agilent 3458A with Fluke 5450A III. Fluid Quantities Parameter/Equipment Range CMC2 (±) Comments Viscosity Cups – G10 G20 G35 G60 G100 G200 G350 17.71 cts 34.07 cts 64.77 cts 117.7 cts 228.2 cts 396.8 cts 715.7 cts 0.29 s 0.20 s 0.16 s 0.17 s 0.19 s 0.26 s 0.28 s Thermometer, stop watch, viscosity oils

(A2LA Cert. No. 2836.01) 05/15/2025 Page 4 of 5 IV. Mechanical Parameter/Equipment Range CMC2, 4, 5, 6, 9 (±) Comments Torque Wrenches (6 to 23) lbfꞏin (24 to 240) lbfꞏin (5 to 59) lbfꞏft (60 to 600) lbfꞏft (200 to 2000) lbfꞏft (500 to 5000) lbfꞏft 0.2 % + 0.6R 0.1 % + 0.6R 0.2 % + 0.6R 0.1 % + 0.6R 0.1 % + 0.6R 0.15 % + 0.6R Torque cell Torque Sensors (0.02 to 20 000) lbfꞏft 0.012 % IV Class F weights & arms Pressure Gages (4 to 600) inꞏH 2O (1 to 300) psi (5 to 10 000) psi 0.2 % 0.1 % 0.1 % Ametek RK Ametek RK Mansfield green Force, Tension, & Compression 3 – Measuring Equipment Up to 32 000 lbf (30 to 2000) lbf (200 to 10 000) lbf (500 to 25 000) lbf (1000 to 50 000) lbf (2000 to 100 000) lbf 0.012 % IV 0.027 % FS 0.017 % FS 0.016 % FS 0.016 % FS 0.014 % FS Class F weights Load cells Scales & Balances3 1 mg to 100 g 100 g to 1 kg (1 to 100) kg (0.01 to 2000) lb (2001 to 30 000) lb 0.040 mg + 0.6R 0.013 g + 0.6R 0.017 g + 0.6R 0.013 % FS + 0.6R 0.013 % FS + 0.6R Class 1 weights Class 1 & F weights Mass 1 mg to 205 g (206 to 5000) g (5001 to 64 000) g (200 to 2000) lb 0.000 04 g 0.013 g 0.17 g 0.013 % FS Comparison with mass standards Analytical balance Load cell

(A2LA Cert. No. 2836.01) 05/15/2025 Page 5 of 5 V. Thermodynamics Parameter/Equipment Range CMC2, 9 (±) Comments Temperature – Measure 32 F 32 F, 70 F, 100 F (122 to 220) °F (220 to 400) °F (400 to 750) °F 0.3 °F 0.3 °F 0.3 °F 0.66 °F 1.2 °F Ice bath Thermometer (Comparisons w/ liquid filled thermometers) Dri-block calibrator ___________________________________________ 1 This laboratory offers commercial calibration service and field 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 In the statement of CMC, percentages are to be read as percent of reading, unless otherwise noted. 5 In the statement of CMC, “FS” represents “full scale” and “IV” represents “indicated value.” 6 In the statement of CMC, R is the resolution of the unit under test. 7 The contributions from the “best existing device” are not included in the CMC claim. 8 This scope meets A2LA’s P112 Flexible Scope Policy. 9 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. 10 The stated measured values are determined usi ng the indicated instrument (see Comments). This capability is suitable for the calibration of the devices intended to measure or generate the measured value in the ranges indicated. CMC are expressed as either a specific value that covers the full range or as a percent or fraction of the reading plus a fixed floor specification.

For the calibrations to which this accreditation applies, please refer to the laboratory’s Calibration Scope of Accreditation. Accredited Laboratory A2LA has accredited MODERN MACHINE & TOOL CO., INC. Newport News, VA for technical competence in the field of Calibration This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This laboratory also meets R205 – Specific Requirements: Calibration Laboratory Accreditation Program. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017). Presented this 15th day of May 2025. __ _____________________ Mr. Trace McInturff, Vice President, Accreditation Services For the Accreditation Council Certificate Number 2836.01 Valid to April 30, 2027