Greenslade &

(A2LA Cert. No. 1032.01) Revised 12/03/2024 Page 2 of 6 Parameter/Equipment Range CMC2, 4 (±) Comments Thread Plugs – Major Diameter Pitch Diameter Flank Angle (0.06 to 10) in (0.06 to 10) in Up to 60° 26 µin 80 µin 6.2' UMM, best wire method, microscope, optical comparator Specialty Gaging Length Radius Angle Up to 2 in (2 to 8) in Up to 0.5 in Up to 90° 0.0001 in 0.0008 in 0.0001 in 6.2' Measuring microscope, optical comparator, UMM Thread Measuring Wires – 60° Sets (2 to 120) pitch 18 µin UMM Digital & Dial Indicators3 Up to 2 in (34 + 14L) µin Gage blocks Calipers3 Parallelism Up to 60 in Up to 60 in (380 + 11L) µin 46 µin Gage blocks Micrometers3 Parallelism Up to 6 in (6 to 24) in Up to 24 in (51 + 9.7L) µin (22 + 15L) µin 46 µin Gage blocks Gage Pins & Plugs Up to 1 in (> 1 to 5) in 22 µin 62 µin UMM Optical Comparators3 – Length Radius Angle Up to 2 in Up to 0.5 in Up to 90° 0.000 14 in 0.000 14 in 3.5’ Glass scale, Gage ball, Precision angle blocks Height Gages3 Up to 18 in (18 to 48) in (290 + 0.69L) µin (160 + 3.2L) µin Gage blocks with surface plate

(A2LA Cert. No. 1032.01) Revised 12/03/2024 Page 4 of 6 Parameter/Equipment Range CMC2 (±) Comments Tri-Round Gages Up to 0.5 in 93 µin Master gage pins Fastener Length Gages Up to 1 in Up to 6 in Up to 12 in 290 µin 540 µin 500 µin Master gage blocks Internal Thread Gage Up to 8 in 200 μin Master rings “Dimension-All” Fastener Measuring Gages Parallelism Up to 2 in Up to 2 in 270 µin 97 μin Master gage blocks & gage balls Protrusion Height Gages Parallelism Up to 2 in Up to 2 in 290 µin 97 μin Master gage blocks & gage balls Penetration Points/Penetration Plugs Type I, IA, II; 6-lobe, Offset Cruciform Hex, Slot, Square 130 μin 32 μin Measuring microscope & UMM UMM Thread Performance – Test Plates5 Up to 0.75 in, M1.5 to M20 250 µin Hardness tester, electronic bore gages, micrometer, plug gages III. Mechanical Parameter/Equipment Range CMC2 (±) Comments Torque Tools Up to 600 lbf 1.4 % of rdg Torque transducer & staging fixture

(A2LA Cert. No. 1032.01) Revised 12/03/2024 Page 6 of 6 Parameter/Equipment Range CMC2 (±) Comments Force Gages – Compression & Tension Up to 600 lbf 0.31 lb Class F weights Scales3 Up to 0.25 lb (> 0.25 to 5) lb (> 5 to 50) lb (> 50 to 250) lb (> 250 to 1000) lb 0.000 23 lb 0.0023 lb 0.0032 lb 0.029 lb 1.2 lb Class F weights 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. 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, L is the numerical value of the nominal length of the device measured in inches and R is the numerical value of the resolution of the device in microinches. 5 Uncertainty is a function of the three characteristics of hardness, thickness, and diameter of the hole. 6 Adjustable thread rings are set to applicable specifications using calibrated master set plug gages. 7 This scope meets A2LA’s P112 Flexible Scope Policy. 8 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.