SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017. Data Weighing Systems 255 Mittel Drive Wood Dale, IL Steven A. Thomas CALIBRATION

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1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 Data Weighing Systems 255 Mittel Drive Wood Dale, IL Steven A. Thomas CALIBRATION Valid to: September 22, 2019 Certificate Number: L Length Dimensional Metrology Indicators - LVDT s ¹ Up to 2 in Up to 10 in 66 µin 185 µin procedures Microscopes ² Eyepiece Reticules and Video Systems Magnification (0 to 1) in (0 to 25) mm 110 µin 7 µm 355 µin 20 µm ASTM E 1951 Mass and Mass Related Force gauges and sensors used in force measurement applications, tension and compression 1 Force gauges and sensors used in force measurement applications, tension and compression ¹ Testing Machines / Load Cells Compression ¹ (0.1 to 1 000) lbf 0.1% of reading (0.5 to ) lbf 0.08% of reading NIST Class F Weights reference load cell (0.01 to ) lbf 0.15% of reading ASTM E4 Page 1 of 8

2 Testing Machines / Load Cells Tension ¹ Testing Machines / Load Cells Compression ¹ Testing Machines / Load Cells Tension ¹ Extensometers / Deflectometers / COD Gauges ² Gauge Length Measure (0.01 to ) lbf 0.15% of reading ASTM E4 (1 200 to ) lbf 0.25% of reading (1 200 to ) lbf 0.25% of reading (0 to 2) in (1 to 10) in Up to 8 in 44 µin 183 µin 0.016% of reading ISO Class 1 ISO Class 1 ASTM E 83 and ISO 9513 Strain Rate ² (0 to 0.5) in/in/min 0.24 % of reading procedures Testing Machine Displacement ² (0.01 to 25) in in ASTM E 2309 Testing Machine Speed ² (0.05 to 20) in/min 0.16 % of reading ASTM E 2658 NIST Class F ASTM E617 Class 6 ASTM E617 Class 7 50 lb 25 lb 20 lb 10 lb 5 lb 2 lb 1 lb 0.5 lb 0.2 lb 0.1 lb 0.05 lb 0.02 lb 0.01 lb 75 mg 40 mg 35 mg 20 mg 10 mg 5 mg 0.5 mg 0.25 mg 0.25 mg 0.07 mg 0.05 mg Comparison of Unknown Mass to Known Mass ASTM E617 Class 1, Class 4 Weights Page 2 of 8

3 NIST Class F ASTM E617 Class 6 ASTM E617 Class 7 Micro-Balances 2 (0.1 μg resolution) (0.1 μg resolution) (1 μg resolution) (1 μg resolution) (10 μg resolution) (10 μg resolution) (10 μg resolution) (10 μg resolution) Analytical Balances 2 ( g resolution) Top Loading Balances 2 (0.001 g resolution) (0.01 g resolution) (0.1 g resolution) (1 g resolution) Bench Scales 2 (0.001 lb resolution) (0.01 lb resolution) Floor Scales, Tanks and Hoppers 2 (0.1 lb resolution) (1 lb resolution) (10 lb resolution) g g g g g 500 g 200 g 100 g 50 g 30 g 20 g 10 g 5 g 3 g 2 g 1 g 0 g to 1 g 0 g to 2.1 g 0 g to 5 g 0 g to 31 g 0 g to 5 g 0 g to 20 g 0 g to 100 g 0 g to 230 g 75 mg 35 mg 20 mg 6 mg 5 mg 1 mg 0.2 mg 0.15 mg 4.8 μg 4.8 μg 8 μg 25 μg 40 μg 45 μg 65 μg 130 μg 0 g to 610 g 0.75 mg 0 g to g 0 g to g 0 g to g 0 g to g 0 lb to 50 lb 0 lb to 300 lb 0 lb to lb 0 lb to lb 0 lb to lb 3.1 mg 31 mg 0.3 g 2.6 g lb 0.03 lb 0.3 lb 2.6 lb 24 lb Comparison of Unknown Mass to Known Mass ASTM E617 Class 1, Class 4 Weights ASTM E617 Class 1 Weights ASTM E617 Class 1 Weights NIST Class F Weights NIST Class F Weights Page 3 of 8

4 Crane and hanging scales 2 (1 lb resolution) 0 lb to lb 1.7 lb Crane and hanging scales 2 (0.5 lb resolution) (1 lb resolution) (10 lb resolution) (50 lb resolution) 0 lb to lb 0 lb to lb 0 lb to lb 0 lb to lb 1.5 lb 5.5 lb 26 lb 875 lb reference load cell Weigh Pads & Load Cells (1 lb resolution) (10 lb resolution) 0 lb to lb 0 lb to lb 5.5 lb 26 lb reference load cell Moisture Analyzers 2 Weighing Systems Analytical Balances ( g) Resolution 0 to 610 g 0.75 mg Method tolerances ASTM E617 Class 1 weights Top Load (0.001 g) Resolution 0 to g 3.1 mg Temperature 20 C to 200 C 2.9 C Reference Thermometer Torque Transducers and Testers 1 (0.01 to 1 000) lbf ft 0.32% of reading Torque Hand Tools (0.5 to 1 000) lbf ft 0.57% of reading Brinell Hardness Testers ² (62.5 to 3 000) kgf 0.16 % of reading Brinell Hardness Testers ² (62.5 to 3 000) kgf Repeatability: 7.5 HBW Error: 0.06 mm NIST Class F Weights and reference wheel/arm standards reference transducer Direct Verification to ASTM E10 ASTM E10 Page 4 of 8

5 Brinell Scopes ¹ (0 to 10) mm 0.05 mm Leeb Hardness HLD 11.3 HLD Direct Verification to ASTM E10 Indirect Verification ASTM A956 Page 5 of 8

6 HRA Low HRA Mid HRA High 0.44 HRA 0.35 HRA 0.26 HRA HRBW Low HRBW Mid HRBW High 0.71 HRBW 0.69 HRBW 0.59 HRBW HRC Low HRC Mid HRC High 0.40 HRC 0.40 HRC 0.36 HRC HREW Low HREW Mid HREW High 0.57 HREW 0.61 HREW 0.54 HREW Indirect Verification of Rockwell Hardness Testers ² HRFW Low HRFW Mid HRFW High 0.70 HRFW 0.52 HRFW 0.58 HRFW ASTM E18 HRGW Low HRGW Mid HRGW High 0.58 HRGW 0.60 HRGW 0.46 HRGW HRHW Mid HRHW High 0.45 HRHW 0.49 HRHW HRKW Low HRKW Mid HRKW High 0.54 HRKW 0.61 HRKW 0.46 HRKW HRLW Mid HRLW High 0.49 HRLW 0.43 HRLW HRMW Mid HRMW High 0.60 HRMW 0.45 HRMW HRRW High 0.57 HRRW Page 6 of 8

7 HR15N Low HR15N Mid HR15N High 0.48 HR15N 0.57 HR15N 0.39 HR15N HR30N Low HR30N Mid HR30N High 0.72 HR30N 0.57 HR30N 0.51 HR30N Indirect Verification of Rockwell Superficial Hardness Testers ² HR45N Low HR45N Mid HR45N High HR15TW Low HR15TW Mid HR15TW High 0.49 HR45N 0.54 HR45N 0.50 HR45N 0.60 HR15TW 0.61 HR15TW 0.39 HR15TW ASTM E18 HR30TW Low HR30TW Med HR30TW High 0.52 HR30TW 0.50 HR30TW 0.45 HR30TW HR45TW Low HR45TW Med HR45TW High 0.52 HR45TW 0.58 HR45TW 0.61 HR45TW Indirect Verification of Micro- Hardness Indentation Testers (Knoop) ² Indirect Verification of Micro- Hardness Indentation Testers (Vickers) ² (100 to 250) HK (250 to 650) HK (100 to 240) HV (240 to 600) HV (> 600) HV 0.9 % of reading 0.5 % of reading 0.6 % of reading 0.7 % of reading 0.3 % of reading ASTM E92 / ISO Uncertainty is stated as repeatability per ASTM E92 X-Y Stage Up to 1 in Up to 25 mm 350 µin 9 µm Page 7 of 8

8 Charpy Impact Testers ² Charpy Impact Testers ² 2092 (Low) 2096 (High) 2098 (Super High) 30 J 80 J 120 J 1.3 ft/lbf 2.5 ft/lbf 3.2 ft/lbf 1.6 J 3.5 J 6.7 J ASTM E 23 ISO Calibration and Measurement Capability (CMC) is expressed in terms of the measurement parameter, measurement range, expanded uncertainty of measurement and reference standard, method, and/or equipment. The expanded uncertainty of measurement is expressed as the standard uncertainty of the measurement multiplied by a coverage factor of 2 (k=2), corresponding to a confidence level of approximately 95%. Notes: 1. Laboratory offers calibration services at the laboratory's own facilities and at the client or other agreed upon facilities. 2. On-site calibration service is offered for these parameters. 3. This scope is formatted as part of a single document including Certificate of Accreditation No. L Page 8 of 8