Certificate of Accreditation

PERRY JOHNSON LABORATORY ACCREDITATION, INC. Certificate of Accreditation Perry Johnson Laboratory Accreditation, Inc. has assessed the Laboratory of:. (Hereinafter called the Organization) and hereby declares that Organization is accredited in accordance with the recognized International Standard: ISO/IEC 17025:2005 This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (as outlined by the joint ISO-ILAC-IAF Communiqué dated January 2009): Dimensional, Mass, Force and Weighing Devices, Mechanical and Calibration (As detailed in the supplement) Accreditation claims for such testing and/or calibration services shall only be made from addresses referenced within this certificate. This Accreditation is granted subject to the system rules governing the Accreditation referred to above, and the Organization hereby covenants with the Accreditation body s duty to observe and comply with the said rules. For PJLA: Initial Accreditation Date: Issue Date: Expiration Date: March 07, 2018 March 07, 2018 March 31, 2020 Tracy Szerszen President/Operations Manager Perry Johnson Laboratory Accreditation, Inc. (PJLA) 755 W. Big Beaver, Suite 1325 Troy, Michigan 48084 Accreditation No.: Certificate No.: 98720 L18-116 The validity of this certificate is maintained through ongoing assessments based on a continuous accreditation cycle. The validity of this certificate should be confirmed through the PJLA website: www.pjlabs.com Page 1 of 11

Contact Name: José F. Ramirez Gaytan Phone: 818-148-6864 Dimensional RANGE OR NOMINAL DEVICE SIZE AS APPROPRIATE AND Outside Micrometer FO 0.5 mm to 1 200 mm (7.03 x 10-1 + 5 x 10-6 L) µm Gage Block grade 0 JIS B 7502 Caliper FO 0.5 mm to 1 200 mm (7.03 x 10-1 + 4 x 10-4 L) µm Gage Block Grade 0 JIS B 7507 Indicator FO 0.003 mm to 51 mm 1.4 µm Gage Block Grade 0 JIS B 7503 Height Gage, QM Height Linear Height FO 10 mm to 610 mm (7.01 + 5.4 x 10-5 L) µm Gage Block Grade 0 Master Height JIS B 7517 Pin Gages FO 0.254 mm to 76.2 mm 1.4 µm Micrometer Thread Plug Gage Major Diameter FO Thread Plug Gage Pitch Diameter FO ASME B 89 1.5 0-80 to 4-12 2.8 µm Digital Micrometer ANSI/ASME B1.2 0-80 to 4-12 5.4 µm Digital Micrometer Three Wire ANSI/ASME B1.2 Mass, Force and Weighing Devices Analytical Balances O Balances and Scales O RANGE OR NOMINAL DEVICE SIZE AS APPROPRIATE 1 mg to 200 g (Res.= 0.001 g) 200 g to 2 kg (Res.= 0.1 g) 2 kg to 20 kg (Res.= 0.1 g) 20 kg to 200 kg (Res.= 1 g) 100 kg to 1 000 kg (Res.= 0.1 kg) AND 0.001 2 g MASS CLASS F1 Euramet cg-8 0.11 g 0.15 g 1.4 g MASS CLASS M1 Euramet cg-8 0.12 kg Mechanical MEASURED INSTRUMENT, AND Pressure FO -103.42 kpa to 206.84 kpa 0.15 % of reading Pressure Calibrator Fluke 719 30G 68.95 kpa to 689.48 kpa 0.15 % of reading Manometers Fluke 700G 689.48 kpa to 6 894.76 kpa 0.2 % of reading Series 6 894.76 kpa to 68 947.59 kpa 0.2 % of reading Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 2 of 11

Mechanical AND Torque Wrenches FO 0.5 N m to 5.65 N m (0.065 + 0.23 x 10-3 T) N m Torque Analyzer System 3.3 N m to 33.9 N m (0.013 9 + 0.009 9T) N m Sturtevant-Richmond Torque Analyzers, Transducers F 33.9 N m to112.98 N m (0.052 7 + 3.13 x 10-3 T) N m 2.82 N m to 28.25 N m 0.22 % of reading Torque Wheel and Dead Weighs DC Voltage FO DC Current FO Resistance FO AND 33 mv to 329 mv 60 µv/v + 30 µv 0.33 V to 3.29 V 50 µv/v + 50 µv 3.3 V to 32.9 V 50 µv/v + 50 µv 33 V to 329 V 12 µv/v + 21 mv 330 V to 1 000 V 0.018 µv/v + 3 mv 33 µa to 329 µa 0.15 ma/a + 0.02 µa 0.33 ma to 3.29 ma 0.1 ma/a + 0.05 µa 3.3 ma to 32.9 ma 0.1 ma/a + 0.25 µa 33 ma to 329 ma 0.1 ma/a + 2.5 µa 0.33 A to 1.09 A 0.2 ma/a + 40 µa 1.1 A to 2.99 A 0.38 ma/a + 40 µa 3 A to 11 A 0.5 ma/a + 750 µa 11 A to 20 A 1 ma/a + 750 ma/a 1.1 Ω to 11 Ω 0.22 mω/ω 11 Ω to 33 Ω 0.19 mω/ω 33 Ω to 109 Ω 0.74 mω/ω 109 Ω to 330 Ω 1.5 mω/ω 0.33 kω to 1.09 kω 4.8 mω/ω 1.09 kω to 3.3 kω 22 mω/ω 3.3 kω to 10.9 kω 54 mω/ω 10.9 kω to 33 kω 0.14 Ω/Ω 33 kω to 109 kω 0.52 Ω/Ω 109 kω to 330 kω 1.6 Ω/Ω 330 kω to 1.09 MΩ 8.7 Ω/Ω 1.09 MΩ to 3.3 MΩ 72 Ω/Ω Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 3 of 11

AND 3.3 MΩ to 10.9 MΩ 0.14 kω/ω Resistance FO 10.9 MΩ to 33 MΩ 1.9 kω/ω 33 MΩ to 400 MΩ 0.2 kω/ω 400 MΩ to 640 MΩ 0.49 kω/ω 640 MΩ to 1 GΩ 1.1 MΩ/Ω 10 Hz to 45 khz 1 mv to 32.999 mv 800 mv/v + 6 µv 45 Hz to 10 khz 1 mv to 32.999 mv 150 mv/v + 6 µv 10 khz to 20 khz 1 mv to 32.999 mv 200 mv/v + 6 µv 20 khz to 50 khz 1 mv to 32.999 mv 1 000 mv/v + 6 µv 50 khz to 100 khz 1 mv to 32.999 mv 3 500 mv/v + 12 µv 100 khz to 500 khz 1 mv to 32.999 mv 8 000 mv/v + 50 µv 10 Hz to 45 khz 33 mv to 329.999 mv 300 mv/v + 8 µv 45 Hz to 10 khz 33 mv to 329.999 mv 145 mv/v + 8 µv 10 khz to 20 khz 33 mv to 329.999 mv 160 mv/v + 8 µv 20 khz to 50 khz 33 mv to 329.999 mv 350 mv/v + 8 µv 50 khz to 100 khz 33 mv to 329.999 mv 800 mv/v + 32 µv 100 khz to 500 khz 33 mv to 329.999 mv 2 000 mv/v + 70 µv 10 Hz to 45 khz 0.33 V to 3.299 99 V 300 mv/v + 50 µv 45 Hz to 10 khz 0.33 V to 3.299 99 V 150 mv/v + 60 µv 10 khz to 20 khz 0.33 V to 3.299 99 V 190 mv/v + 60 µv 20 khz to 50 khz 0.33 V to 3.299 99 V 300 mv/v + 50 µv 50 khz to 100 khz 0.33 V to 3.299 99 V 700 mv/v + 125 µv 100 khz to 500 khz 0.33 V to 3.299 99 V 2 400 mv/v + 600 µv 10 Hz to 45 khz 3.3 V to 32.999 9 V 300 mv/v + 650 µv Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 4 of 11

AND 45 Hz to 10 khz 3.3 V to 32.999 9 V 150 mv/v + 600 µv 10 khz to 20 khz 3.3 V to 32.999 9 V 240 mv/v + 600 µv 20 khz to 50 khz 3.3 V to 32.999 9 V 350 mv/v + 600 µv 50 khz to 100 khz 3.3 V to 32.999 9 V 900 mv/v + 1 600 µv 45 Hz to 1 khz 33 V to 329.999 V 190 mv/v + 2 000 µv 1 khz to 10 khz 33 V to 329.999 V 200 mv/v + 6 000 µv 10 khz to 20 khz 33 V to 329.999 V 250 mv/v + 6 000 µv 20 khz to 50 khz 33 V to 329.999 V 300 mv/v + 6 000 µv 50 khz to 100 khz 33 V to 329.999 V 2 000 mv/v + 50 000 µv 45 Hz to 1 khz 330 V to 1 020 V 300 mv/v + 10 000 µv 1 khz to 5 khz 330 V to 1 020 V 250 mv/v + 10 000 µv 5 khz to 10 khz 330 V to 1 020 V 300 mv/v + 10 000 µv 10 Hz to 20 Hz 29 µa to 329.99 µa 2 µa/a + 0.1 µa 20 Hz to 45 Hz 29 µa to 329.99 µa 1.5 µa/a + 0.1 µa 45 Hz to 1 khz 29 µa to 329.99 µa 1.25 µa/a + 0.1 µa 1 khz to 5 khz 29 µa to 329.99 µa 3 µa/a + 0.1 µa 5 khz to 10 khz 29 µa to 329.99 µa 8 µa/a + 0.1 µa 10 khz to 30 khz 29 µa to 329.99 µa 16 µa/a + 0.1 µa 10 Hz to 20 Hz 0.33 ma to 3.299 99 ma 2 µa/a + 0.1 µa 20 Hz to 45 Hz 0.33 ma to 3.299 99 ma 1.5 A/A + 0.1 A 45 Hz to 1 khz 0.33 ma to 3.299 99 ma 1.3 A/A + 0.1 A 1 khz to 5 khz 0.33 ma to 3.299 99 ma 3 A/A + 0.1 A Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 5 of 11

AND 5 khz to 10 khz 0.33 ma to 3.299 99 ma 8 A/A + 0.1 A 10 khz to 30 khz 0.33 ma to 3.299 99 ma 16 A/A + 0.1 A 10 Hz to 20 Hz 3.3 ma to 32.999 9 ma 1.8 A/A + 0.1 A 20 Hz to 45 Hz 3.3 ma to 32.999 9 ma 0.9 A/A + 0.1 A 45 Hz to 1 khz 3.3 ma to 32.999 9 ma 1.3 A/A + 0.1 A 1 khz to 5 khz 3.3 ma to 32.999 9 ma 3 A/A + 0.1 A 5 khz to 10 khz 3.3 ma to 32.999 9 ma 5 A/A + 0.1 A 10 khz to 30 khz 3.3 ma to 32.999 9 ma 1 A/A + 0.1 A 10 Hz to 20 Hz 33 ma to 329.999 ma 1.8 A/A + 0.2 A 20 Hz to 45 Hz 33 ma to 329.999 ma 0.9 A/A + 0.2 A 45 Hz to 1 khz 33 ma to 329.999 ma 4 A/A + 0.1 A 1 khz to 5 khz 33 ma to 329.999 ma 1 A/A + 0.1 A 5 khz to 10 khz 33 ma to 329.999 ma 0.4 A/A + 0.1 A 10 khz to 30 khz 33 ma to 329.999 ma 1 A/A + 0.1 A 10 Hz to 45 Hz 0.33 A to 1.099 99 A 1.8 A/A + 100 A 45 Hz to 1 khz 0.33 A to 1.099 99 A 0.5 A/A + 100 A 1 khz to 5 khz 0.33 A to 1.099 99 A 2.5 A/A + 0.1 A 5 khz to 10 khz 0.33 A to 1.099 99 A 2.5 A/A + 0.1 A 10 Hz to 45 Hz 1.1 A to 2.99 999 A 150 A/A + 100 A 45 Hz to 1 khz 1.1 A to 2.99 999 A 50 A/A + 100 A 1 khz to 5 khz 1.1 A to 2.99 999 A 50 A/A + 1 000 A 5 khz to 10 khz 1.1 A to 2.99 999 A 200 A/A + 2 000 A Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 6 of 11

Certificate of Accreditation: Supplement AND 45 Hz to 100 Hz 3 A to 10.999 9 A 100 A/A + 2 000 A 100 Hz to 1 khz 3 A to 10.999 9 A 200 A/A + 2 000 A 1 khz to 5 khz 3 A to 10.999 9 A 300 A/A + 2 000 A 45 Hz to 100 Hz 11 A to 20.5 A 1 200 A/A + 5 000 A 100 Hz to 1 khz 11 A to 20.5 A 1 500 A/A + 5 000 A 1 khz to 5 khz 11 A to 20.5 A 3 000 A/A + 5 000 A 220 pf to 399.9 pf 0.5 nf/f + 0.01 nf Capacitance FO 0.4 nf to 1099 9 nf 0.5 nf/f + 0.01 nf Thermocouple Type B FO 1.1 nf to 3.299 9 nf 0.5 nf/f + 0.01 nf 3.3 nf to 10.999 nf 0.25 nf/f + 0.1 nf 11 nf to 32.999 nf 0.25 nf/f + 0.1 nf 33 nf to 109.99 nf 0.25 nf/f + 0.3 nf 110 nf to 329.99 nf 0.25 nf/f + 1 nf 0.33 µf to 1.099 9 µf 0.25 nf/f + 3 nf 1.1 µf to 3.299 9 µf 0.25 nf/f + 10 nf 3.3 µf to 10.999 µf 0.4 nf/f + 30 nf 11 µf to 32.999 µf 0.45 nf/f + 100 nf 33 µf to 109.99 µf 0.45 nf/f + 300 nf 110 µf to 329.99 µf 0.45 µf/f + 1 µf 0.33 mf to 1.099 9 mf 0.45 µf/f + 3 µf 1.1 mf to 3.299 9 mf 0.45 µf/f + 10 µf 3.3 mf to 10.999 mf 0.45 µf/f + 10 µf 11 mf to 32.999 mf 0.75 µf/f + 30 µf 33 mf to 110 mf 1.1 µf/f + 100 µf 600 ºC to 800 ºC 0.42 ºC Simulation of 800 ºC to 1 000 ºC 0.34 ºC Thermocouple Output 1 000 ºC to 1 550 ºC 0.3 ºC 1 550 ºC to 1 820 ºC 0.26 ºC Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 7 of 11

Thermocouple Type C FO Thermocouple Type E FO Thermocouple Type J FO Thermocouple Type K FO Thermocouple Type L FO Thermocouple Type N FO Thermocouple Type R FO AND 0 ºC to 150 ºC 0.23 ºC Simulation of 150 ºC to 650 ºC 0.19 ºC Thermocouple Output 650 ºC to 1 000 ºC 0.23 ºC 650 ºC to 1 000 ºC 0.38 ºC 1 800 ºC to 2 316 ºC 0.63 ºC -250 ºC to -100 ºC 0.38 ºC -100 ºC to -25 ºC 0.12 ºC -25 ºC to 350 ºC 0.1 ºC 350 ºC to 650 ºC 0.12 ºC 650 ºC to 1 000 ºC 0.16 ºC -210 ºC to -100 ºC 0.2 ºC -100 ºC to -30 ºC 0.12 ºC -30 ºC to 150 ºC 0.1 ºC 150 ºC to 760 ºC 0.13 ºC 760 ºC to 1 200 ºC 0.18 ºC -200 ºC to -100 ºC 0.25 ºC -100 ºC to -25 ºC 0.14 ºC -25 ºC to 120 ºC 0.12 ºC 120 ºC to 1 000 ºC 0.19 ºC 1 000 ºC to 1 372 ºC 0.3 ºC -200 ºC to -100 ºC 0.37 ºC -100 ºC to 800 ºC 0.26 ºC 800 ºC to 900 ºC 0.17 ºC -200 ºC to -100 ºC 0.3 ºC -100 ºC to -25 ºC 0.17 ºC -25 ºC to 120 ºC 0.15 ºC 120 ºC to 410 ºC 0.14 ºC 410 ºC to 1 300 ºC 0.21 ºC 0 ºC to 250 ºC 0.48 ºC 250 ºC to 400 ºC 0.28 ºC 400 ºC to 1 000 ºC 0.26 ºC 1 000 ºC to 1 767 ºC 0.3 ºC Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 8 of 11

Thermocouple Type S FO Thermocouple Type T FO Thermocouple Type U FO RTD Type Pt 385, 100Ω FO RTD Type Pt 3 926, 100Ω FO RTD Type Pt 3 916, 100Ω FO RANGE OR NOMINAL DEVICE SIZE AS APPROPRIATE AND 0 ºC to 250 ºC 0.47 ºC Simulation of 250 ºC to 1 000 ºC 0.3 ºC Thermocouple Output 1 000 ºC to 1 400 ºC 0.28 ºC 1 400 ºC to 1 767 ºC 0.34 ºC -250 ºC to -150 ºC 0.48 ºC -150 ºC to 0 ºC 0.18 ºC 0 ºC to 120 ºC 0.12 ºC 120 ºC to 400 ºC 0.1 ºC -200 ºC to 0 ºC 0.56 ºC 0 ºC to 600 ºC 0.27 ºC -200 ºC to -80 ºC 0.04 ºC Simulation of -80 ºC to 0 ºC 0.05 ºC RTD Output Fluke 5502A 0 ºC to 100 ºC 0.07 ºC 100 ºC to 300 ºC 0.08 ºC 300 ºC to 400 ºC 0.09 ºC 400 ºC to 630 ºC 0.1 ºC 630 ºC to 800 ºC 0.21 ºC 200 ºC to -80 ºC 0.04 ºC -80 ºC to 0 ºC 0.05 ºC 0 ºC to 100 ºC 0.07 ºC 100 ºC to 300 ºC 0.08 ºC 300 ºC to 400 ºC 0.09 ºC 400 ºC to 630 ºC 0.1 ºC -200 ºC to -190 ºC 0.25 ºC -190 ºC to -80 ºC 0.04 ºC -80 ºC to 0 ºC 0.05 ºC 0 ºC to 100 ºC 0.06 ºC 100 ºC to 260 ºC 0.06 ºC 260 ºC to 300 ºC 0.07 ºC 300 ºC to 400 ºC 0.08 ºC 400 ºC to 600 ºC 0.08 ºC 600 ºC to 630 ºC 0.21 ºC Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 9 of 11

RTD Type Pt 385, 200Ω FO RTD Type Pt 385, 500Ω FO RTD Type Pt 385, 1 000Ω FO RTD PtNi 385, 120Ω (Ni120) FO RTD Cu 427, 10Ω FO RANGE OR NOMINAL DEVICE SIZE AS APPROPRIATE AND -200 ºC to -80 ºC 0.04 ºC Simulation of -80 ºC to 0 ºC 0.04 ºC RTD Output Fluke 5502A 0 ºC to 100 ºC 0.04 ºC 100 ºC to 260 ºC 0.05 ºC 260 ºC to 300 ºC 0.12 ºC 300 ºC to 400 ºC 0.13 ºC 400 ºC to 600 ºC 0.14 ºC 600 ºC to 630 ºC 0.16 ºC -200 ºC to -80 ºC 0.04 ºC -80 ºC to 0 ºC 0.05 ºC 0 ºC to 100 ºC 0.05 ºC 100 ºC to 260 ºC 0.06 ºC 260 ºC to 300 ºC 0.08 ºC 300 ºC to 400 ºC 0.08 ºC 400 ºC to 600 ºC 0.09 ºC 600 ºC to 630 ºC 0.11 ºC -200 ºC to 80 ºC 0.04 ºC -80 ºC to 0 ºC 0.05 ºC 0ºC to 100 ºC 0.04 ºC 100 ºC to 260 ºC 0.05 ºC 260 ºC to 300 ºC 0.06 ºC 300º C to 400 ºC 0.07 ºC 400 ºC to 600 ºC 0.07 ºC 600 ºC to 630 ºC 0.23 ºC -80 ºC to 0 ºC 0.08 ºC 0 ºC to 100 ºC 0.08 ºC 100 ºC to 260 ºC 0.14 ºC -100 ºC to 260 ºC 0.3 ºC Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 10 of 11

1. The CMC (Calibration and Measurement Capability) stated for calibrations included on this scope of accreditation represents the smallest measurement uncertainty attainable by the laboratory when performing a more or less routine calibration of a nearly ideal device under nearly ideal conditions. It is typically expressed at a confidence level of 95 % using a coverage factor k (usually equal to 2). The actual measurement uncertainty associated with a specific calibration performed by the laboratory will typically be larger than the CMC for the same calibration since capability and performance of the device being calibrated and the conditions related to the calibration may reasonably be expected to deviate from ideal to some degree. 2. The laboratories range of calibration capability for all disciplines for which they are accredited is the interval from the smallest calibrated standard to the largest calibrated standard used in performing the calibration. The low end of this range must be an attainable value for which the laboratory has or has access to the standard referenced. Verification of an indicated value of zero in the absence of a standard is common practice in the procedure for many calibrations but by its definition it does not constitute calibration of zero capacity. 3. The presence of a superscript F means that the laboratory performs calibration of the indicated parameter at its fixed location. Example: Outside Micrometer F would mean that the laboratory performs this calibration at its fixed location. 4. The presence of a superscript O means that the laboratory performs calibration of the indicated parameter onsite at customer locations. Example: Outside Micrometer O would mean that the laboratory performs this calibration onsite at the customer s location. 5. The presence of a superscript FO means that the laboratory performs calibration of the indicated parameter both at its fixed location and onsite at customer locations. Example: Outside Micrometer FO would mean that the laboratory performs this calibration at its fixed location and onsite at customer locations. 6. Measurement uncertainties obtained for calibrations performed at customer sites can be expected to be larger than the measurement uncertainties obtained at the laboratories fixed location for similar calibrations. This is due to the effects of transportation of the standards and equipment and upon environmental conditions at the customer site which are typically not controlled as closely as at the laboratories fixed location. 7. The term L represents length in inches or millimeters as appropriate to the uncertainty statement. 8. The term T represents torque in N m (including SI multiple and submultiple units) for the international system of units (the SI) or ozf in, lbf in and lbf ft for the USC system of units. Issue: 03/2018 This supplement is in conjunction with certificate #L18-116 Page 11 of 11