Tektronix (China) Co., Ltd.- Beijing Branch

(A2LA Cert. No. 3272.01) 8/28/2025 Page 2 of 31 Parameter/Equipment Range CMC2, 4, 5, 6 (±) Comments DC Voltage – Generate 3 (cont) (0 to 200) mV (0.2 to 2.0) V (2.0 to 20) V (20 to 200) V (200 to 1100) V 1.9 µV/V + 15 nV 1.9 µV/V + 0.45 nV 1.9 µV/V + 34 nV 1.8 µV/V + 1.7 µV 1.8 µV/V + 21 µV Fluke 5720A characterized calibrator DC Current – Measure3 (0 to 10) µA (10 to 100) µA (0.1 to 1) mA (1 to 10) mA (10 to 100) mA (0.1 to 1) A (0 to 200) µA (0.2 to 2.0) mA (2.0 to 20) mA (20 to 200) mA (0.2 to 1) A (1 to 2) A (2 to 5) A (5 to 10) A (10 to 20) A (0 to 20) pA (20 to 200) pA (0.2 to 2) nA (2 to 20) nA (20 to 200) nA (0.2 to 2) µA (2 to 10) µA 1.1 µA/A + 0.64 nA 22 µA/A + 1.1 nA 23 µA/A + 6.2 nA 23 µA/A + 61 nA 41 µA/A + 0.60 µA 0.013 % + 11 µA 5.7 µA/A + 27 pA 6.6 µA/A + 1.1 nA 6.3 µA/A + 16 nA 8.6 µA/A + 0.15 µA 26 µA/A + 51 nA 22 µA/A + 0.12 µA 24 µA/A + 2.7 µA 26 µA/A + 10 µA 27 µA/A + 4.9 µA 0.96 mA/A + 0.0006 pA 0.59 mA/A + 0.0019 pA 0.59 mA/A + 0.026 pA 0.24 mA/A + 0.056 pA 0.24 mA/A + 2.6 pA 0.010 mA/A + 8.0 pA 0.021 mA/A + 2.1 pA Agilent / HP 3458A Fluke 8508A standard resistors precision current shunts Keithley 6517B characterized micro- current meter DC Current – Generate3 (0 to 320) µA (0.32 to 3.2) mA (3.2 to 32) mA (32 to 320) mA (0.32 to 1.1) A (1.1 to 3) A (3 to 11) A (0 to 220) µA (0.22 to 2.2) mA (2.2 to 22) mA (22 to 220) mA (0.22 to 2.2) A (2.2 to 11) A 0.016 % + 17 nA 0.011 % + 54 nA 0.010 % + 0.30 µA 0.010 % + 2.7 µA 0.022 % + 35 µA 0.038 % + 51 µA 0.055 % + 0.58 mA 42 µA/A + 5.7 nA 33 µA/A + 6.5 nA 32 µA/A + 44 nA 0.020 % - 0.90 µA 0.080 % + 12 µA 0.040 % + 0.40 mA Fluke 5520A Fluke 5720A Fluke 5725A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 4 of 31 Parameter/Equipment Range CMC2, 4, 5 (±) Comments Resistance – Generate3 Fixed Points (0 to 10.9999) Ω (11 to 32.9999) Ω 33 Ω to 109.9999 kΩ 110 kΩ to 1.099 999 MΩ (1.1 to 3.299 999) MΩ (3.3 to 10.000 00) MΩ (11 to 32.999 99) MΩ (33 to 109.9999) MΩ (110 to 329.9999) MΩ (330 to 1100) MΩ 1 Ω 1.9 Ω 10 Ω 19 Ω 100 Ω 190 Ω 1 k Ω 1.9 kΩ 10 kΩ 19 kΩ 100 kΩ 190 kΩ 1 MΩ 1.9 MΩ 10 MΩ 19 MΩ 100 MΩ 1 Ω 10 Ω 100 Ω 1 k Ω 10 kΩ 100 kΩ 1 MΩ 10 MΩ 100 MΩ 1 GΩ 10 G 100 G 1 T 10 T 100 T 40 µΩ/Ω + 10 µΩ 34 µΩ/Ω + 29 µΩ 28 µΩ/Ω 33 µΩ/Ω + 0.35 Ω 65 µΩ/Ω + 0.86 Ω 0.012 % + 66 Ω 0.025 % + 83 Ω 0.049 % + 520 Ω 0.30 % 1.5 % 0.000 09 Ω 0.000 17 Ω 0.000 22 Ω 0.000 43 Ω 0.000 98 Ω 0.0019 Ω 0.0078 Ω 0.016 Ω 0.080 Ω 0.16 Ω 1.1 Ω 2.4 Ω 18 Ω 0.26 kΩ 0.43 kΩ 6.2 kΩ 13 kΩ 0.000 006 5 Ω 0.000 081 Ω 0.000 61 Ω 0.0061 Ω 0.041 Ω 0.63 Ω 8.9 Ω 0.10 k Ω 2.7 k Ω 0.19 MΩ 15 MΩ 0.25 GΩ 1.6 GΩ 17 GΩ 0.24 TΩ Fluke 5520A Fluke 5720A Fluke 742A-1 742A-10 742A-10 742A-1k 742A-10k 742A-100k 742A-1M 742A-10M Guildline 9334A-100M 9334A-1G 9334A-10G 9334A-100G 9337-1T 9337-10T 9337-100T

(A2LA Cert. No. 3272.01) 8/28/2025 Page 6 of 31 Parameter/Range Frequency CMC2, 5, 6 (±) Comments AC Voltage – Measure 3 (cont) 30 mV 100 mV 300 mV 1 V 3 V Up to 20 mV (20 to 70) mV (70 to 220) mV (0.22 to 0.7) V Sine at 100 kHz (50 Ω load) (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz 0.11 mV 0.38 mV 1.1 mV 3.7 mV 11 mV 0.32 mV/V + 1.3 µV 0.21 mV/V + 1.3 µV 0.13 mV/V + 1.2 µV 0.22 mV/V + 2.0 µV 0.34 mV/V + 2.4 µV 0.90 mV/V + 3.0 µV 1.0 mV/V + 8.0 µV 1.8 mV/V + 8.0 µV 0.30 mV/V + 0.72 µV 0.14 mV/V + 1.3 µV 0.072 mV/V + 1.5 µV 0.13 mV/V + 2.0 µV 0.26 mV/V + 2.4 µV 0.52 mV/V + 4.6 µV 0.72 mV/V + 7.6 µV 1.2 mV/V + 7.8 µV 0.22 mV/V + 0.67 µV 0.093 mV/V + 1.5 µV 0.043 mV/V + 1.3 µV 0.069 mV/V + 2.2 µV 0.17 mV/V + 1.7 µV 0.26 mV/V + 4.3 µV 0.39 mV/V + 7.7 µV 1.0 mV/V + 8.3 µV 0.24 mV/V + 0.25 µV 0.09 mV/V 0.035 mV/V + 2.5 µV 0.055 mV/V + 1.5 µV 0.083 mV/V + 2.3 µV 0.18 mV/V + 5.8 µV 0.33 mV/V + 2.5 µV 0.98 mV/V + 7.5 µV Agilent / HP 3458A (50 Ω load, fixed points, amplitude) Fluke 5790A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 7 of 31 Parameter/Range Frequency CMC2, 5 (±) Comments AC Voltage – Measure3 (cont) (0.7 to 2.2) V (2.2 to 7) V (7 to 22) V (22 to 70) V (70 to 220) V (220 to 700) V (700 to 1000) V (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz 10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz 40 Hz to 1 kHz (1 to 20) kHz (20 to 50) kHz (50 to 100) kHz 45 Hz to 1 kHz (1 to 20) kHz (20 to 50) kHz 0.23 mV/V 0.075 mV/V 0.026 mV/V + 0.33 µV 0.048 mV/V + 0.67 µV 0.075 mV/V 0.17 mV/V 0.27 mV/V + 6.7 µV 0.89 mV/V + 17 µV 0.22 mV/V + 2.0 µV 0.074 mV/V + 0.25 µV 0.025 mV/V + 3.3 µV 0.048 mV/V + 7.5 µV 0.083 mV/V + 2.5 µV 0.19 mV/V + 2.0 µV 0.41 mV/V + 2.5 µV 1.2 mV/V + 2.5 µV 0.23 mV/V 0.07 mV/V 0.03 mV/V 0.050 mV/V + 6.7 µV 0.083 mV/V + 10 µV 0.19 mV/V + 67 µV 0.41 mV/V + 33 µV 1.2 mV/V + 0.17mV 0.22 mV/V + 95 µV 0.077 mV/V + 45 µV 0.034 mV/V + 20 µV 0.058 mV/V + 75 µV 0.097 mV/V + 45 µV 0.20 mV/V + 0.18 mV 0.23 mV/V 0.075 mV/V + 67 µV 0.034 mV/V + 67 µV 0.069 mV/V + 0.17 mV 0.098 mV/V + 0.33 mV 0.21 mV/V + 0.33 mV 0.10 mV/V + 0.10 mV 0.045 mV/V + 0.50 mV 0.13 mV/V + 0.10 mV 0.5 mV/V 0.10 mV/V 0.04 mV/V + 1.0 mV 0.10 mV/V + 30 mV Fluke 5790A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 9 of 31 Parameter/Range Frequency CMC2, 4, 5 (±) Comments AC Voltage – Generate 3 (cont) (0.33 to 3.299 99) V (3.3 to 32.9999) V (33 to 329.999) V (330 to 1020) V (2.2 to 22) mV (22 to 220) mV (10 to 45) Hz 45 Hz to 10 kHz (10 to 20) kHz (20 to 50) kHz (50 to 100) kHz (100 to 500) kHz (10 to 45) Hz 45 Hz to 10 kHz (10 to 20) kHz (20 to 50) kHz (50 to 100) kHz (10 to 45) Hz 45 Hz to 10 kHz (10 to 20) kHz (20 to 50) kHz (50 to 100) kHz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz 0.032 % + 46 µV 0.017 % + 58 µV 0.019 % + 64 µV 0.032 % + 38 µV 0.069 % + 0.15 mV 0.24 % + 0.61 mV 0.031 % + 0.67 mV 0.017 % + 0.54 mV 0.024 % + 0.62 mV 0.034 % + 0.73 mV 0.089 % + 1.6 mV 0.019 % + 2.0 mV 0.020 % + 6.4 mV 0.025 % + 6.8 mV 0.032 % + 5.5 mV 0.20 % + 53 mV 0.031 % + 11 mV 0.026 % + 10 mV 0.032 % + 4.6 mV 0.56 % + 8.8 µV 0.024 % + 4.4 µV 74 µV/V + 3.5 µV 0.020 % + 4.4 µV 0.052 % + 4.7 µV 0.11 % + 9.5 µV 0.21 % + 18 µV 0.30 % + 20 µV 0.060 % + 8.0 µV 10 µV/V + 51 µV 84 µV/V + 6.6 µV 0.019 % + 7.2 µV 0.048 % + 16 µV 0.087 % + 20 µV 0.14 % + 24 µV 0.26 % + 48 µV Fluke 5520A Fluke 5720A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 10 of 31 Parameter/Range Frequency CMC2, 4, 5 (±) Comments AC Voltage – Generate 3 (cont) (0.22 to 2.2) V (2.2 to 22) V (22 to 220) V (220 to 1100) V (220 to 1100) V (220 to 750) V (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (15 to 50) Hz 50 Hz to 1 kHz (1 to 20) kHz (20 to 30) kHz (30 to 50) kHz (50 to 100) kHz 0.010 % + 1.1 mV 0.027 % + 3.7 µV 55 µV/V + 6.6 µV 73 µV/V + 9.4 µV 0.010 % + 31 µV 0.039 % + 83 µV 0.096 % + 0.19 mV 0.16 % + 0.33 mV 55 µV/V + 9.8 mV 0.023 % + 0.11 mV 51 µV/V + 78 µV 73 µV/V + 9.4 µV 96 µV/V + 0.20 mV 0.026 % + 0.59 mV 0.092 % + 0.87 mV 0.15 % + 3.2 mV 0.080 % + 84 mV 0.028 % + 60 µV 68 µV/V + 5.2 mV 82 µV/V + 0.96 mV 0.014 % + 2.3 mV 0.084 % + 16 mV 0.012 % + 36 mV 0.012 % + 2.0 mV 0.013 % + 7.8 mV 0.046 % + 18 mV 0.048 % + 14 mV 0.17 % + 82 mV Fluke 5720A Fluke 5725A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 12 of 31 Parameter/Range Frequency CMC2, 4, 5 (±) Comments AC Current – Measure3 (0.015 to 1) mA (1 to 10) mA (10 to 20) mA (20 to 50) mA (50 to 100) mA (100 to 200) mA (200 to 500) mA (0.5 to 1) A (1 to 2) A (2 to 5) A (5 to 10) A (10 to 20) A (10 to 20) Hz (20 to 40) Hz 40 Hz to 5 kHz (5 to 30) kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 30 kHz (10 to 20) Hz 20 Hz to 30 kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 5 kHz (5 to 30) kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 30 kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 30 kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 30 kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 30 kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 30 kHz 40 Hz to 30 kHz 40 Hz to 5 kHz (5 to 10) kHz 40 Hz to 5 kHz (5 to 10) kHz 0.22 mA/A + 15 nA 0.092 mA/A + 4.9 nA 0.063 mA/A + 3.3 nA 0.079 mA/A + 3.9 nA 0.22 mA/A + 0.16 µA 0.078 mA/A + 98 nA 0.035 mA/A + 78 nA 0.24 mA/A + 0.37 µA 0.029 mA/A + 0.29 µA 0.25 mA/A + 0.31 µA 0.075 mA/A + 0.60 µA 0.029 mA/A + 0.51 µA 0.036 mA/A + 0.34 µA 0.21 mA/A + 3.4 µA 0.078 mA/A + 1.3 µA 0.032 mA/A + 1.4 µA 0.24 mA/A + 3.7 µA 0.070 mA/A + 3.5 µA 0.028 mA/A + 3.6 µA 0.25 mA/A + 3.1 µA 0.079 mA/A + 5.1 µA 0.032 mA/A + 4.3 µA 0.25 mA/A + 12 µA 0.076 mA/A + 15 µA 0.032 mA/A + 14 µA 0.26 mA/A 0.070 mA/A + 35 µA 0.029 mA/A + 28 µA 0.030 mA/A + 85 µA 0.032 mA/A + 0.16 mA 0.048 mA/A + 0.11 mA 0.046 mA/A + 0.18 mA 0.049 mA/A + 0.22 mA Fluke 5790A precision current shunts

(A2LA Cert. No. 3272.01) 8/28/2025 Page 13 of 31 Parameter/Range Frequency CMC2, 4, 5 (±) Comments AC Current – Measure3 (cont) (0.1 to 1) mA (1 to 10) mA (10 to 100) mA (100 to 1000) mA (10 to 20) Hz (20 to 45) Hz (45 to 100) Hz 100 Hz to 5 kHz (10 to 20) Hz (20 to 45) Hz (45 to 100) Hz 100 Hz to 5 kHz (10 to 20) Hz (20 to 45) Hz (45 to 100) Hz 100 Hz to 5 kHz (10 to 20) Hz (20 to 45) Hz (45 to 100) Hz 100 Hz to 5 kHz 4.7 mA/A + 0.23 µA 1.8 mA/A + 0.22 µA 0.72 mA/A + 0.23 µA 0.38 mA/A + 0.23 µA 4.7 mA/A + 2.2 µA 1.8 mA/A + 2.2 µA 0.72 mA/A + 2.3 µA 0.38 mA/A + 2.3 µA 4.7 mA/A + 22 µA 1.8 mA/A + 22 µA 0.72 mA/A + 23 µA 0.28 mA/A + 22 µA 4.7 mA/A + 0.22 mA 1.9 mA/A + 0.23 mA 0.98 mA/A + 0.22 mA 1.2 mA/A + 0.23 mA HP/Agilent 3458A AC Current – Generate 3 (10 to 32.999) mA (33 to 329.99) mA (0.33 to 1.099 99) A (1.1 to 2.999 99) A (10 to 20) Hz (20 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 30) kHz (10 to 20) Hz (20 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 30) kHz (10 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz 0.18 % + 1.8 µA 0.10 % + 2.0 µA 0.039 % + 2.4 µA 0.082 % + 2.8 µA 0.20 % + 4.0 µA 0.39 % + 5.8 µA 0.18 % + 21 µA 0.090 % + 28 µA 0.042 % + 21 µA 0.099 % + 54 µA 0.20 % + 0.10 mA 0.39 % + 0.22 mA 0.18 % + 0.11 mA 0.052 % + 0.11 mA 0.69 % + 1.0 mA 2.5 % + 5.1 mA 0.13 % + 1.4 mA 0.062 % + 0.08 mA 0.58 % + 1.3 mA 2.5 % + 5.3 mA Fluke 5520A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 15 of 31 Parameter/Range Frequency CMC2, 4, 5 (±) Comments Capacitance – Measure3 10 nF to 1 µF (1 to 10) nF 10 nF to 100 µF 100 µF to 1 mF (0.19 to 0.3) nF (0.3 to 1) nF (1 to 100) nF 100 nF to 1 µF (1 to 100) nF (0.11 to 110) mF 50 Hz 100 Hz 1 kHz 10 kHz DC Current 1.2 mF/F 1.1 mF/F + 1.3 pF 1.3 mF/F + 0.028 nF 1.2 mF/F + 5.2 nF 0.20 mF/F + 0.30 pF 1.2 mF/F 1.2 mF/F + 0.20 pF 1.2 mF/F + 1 pF 1.2 mF/F 0.37 mF/F Fluke 6306 Fluke 5720A, Agilent 3458A Capacitance – Generate3 Fixed Points (0.19 to 0.3999) nF (0.4 to 1.0999) nF (1.1 to 3.2999) nF (3.3 to 10.9999) nF (11 to 32.9999) nF (33 to 109.999) nF (110 to 329.999) nF (0.33 to 1.0999) µF (1.1 to 3.2999) µF (3.3 to 10.9999) µF (11 to 32.9999) µF (33 to 109.999) µF (110 to 329.999) µF (0.33 to 1.0999) mF (1.1 to 3.2999) mF (3.3 to 10.9999) mF (0.1 to 1) nF (1 to 10) nF (10 to 100) nF (0.1 to 1) µF (1 to 110) µF 24.47 pF 84.39 pF 0.51 % + 10 pF 0.62 % + 9.7 pF 0.48 % + 12 pF 0.25 % + 11 pF 0.23 % + 0.12 nF 0.25 % + 0.11 nF 0.20 % + 0.60 nF 0.26 % + 1.0 nF 0.20 % + 6.0 nF 0.26 % + 10 nF 0.34 % + 59 nF 0.45 % + 0.11 µF 0.43 % + 0.49 µF 0.45 % + 1.1 µF 0.47 % + 4.7 µF 0.50 % + 9.7 µF 0.076 % + 0.23 pF 0.058 % + 0.34 pF 0.057 % + 2.4 pF 0.062 % + 0.2 pF 0.068 % 0.28 pF 0.63 pF Fluke 5520A IET 1423-9801 IET HACS-Z Fixed capacitor

(A2LA Cert. No. 3272.01) 8/28/2025 Page 16 of 31 Parameter/Equipment Range CMC2, 4 (±) Comments Oscilloscopes – Amplitude – DC Level 3 50 Ω Load 1 MΩ Load 1 MΩ Load 50 Ω Load 1 MΩ Load Leveled Sinewave Flatness 3 1 mV to 6.6 V 1 mV to 1 V (1 to 130) V 1 mV to 0.1 V (0.1 to 5) V (0 to 1) V (1 to 10) V (10 to 200) V 5 mV to 5.5 V, 50 kHz to 600 MHz 5 mV to 3.5 V, (600 to 1100) MHz 5 mV to 5 V (50 kHz to 550 MHz) 5 mV to 3 V (550 MHz to 2.5 GHz) 5 mV to 2 V (2.5 GHz to 3.2 GHz) (-20 to 20) dBm 50 kHz to 6.4 GHz (6 to 12) GHz (12 to 16) GHz (16 to 20) GHz 0.26 % + 29 µV 0.024 % + 0.55 mV 0.050 % + 0.34 mV 0.31 mV/V + 29 µV 0.35 mV/V + 0.17 mV 0.15 mV/V + 0.57 mV 0.26 mV/V + 0.36 mV 0.28 mV/V + 2.0 mV 0.40 dB 0.48 dB 0.33 dB 0.33 dB 0.33 dB 0.69 dB 0.63 dB 0.90 dB 1.1 dB Fluke 5520A W/SC1100 Fluke 9500B/9530 Fluke 5520A W/SC1100 Fluke 9500B/9530 Agilent N1912A Agilent E4413A Agilent N5183A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 17 of 31 Parameter/Equipment Range CMC2 (±) Comments Oscilloscopes – (cont) Time Marker 3 Rise Time 3 Input Resistance – Measure 3 1 ns to 5 s (1 to 100) ns 100 ns to 100 µs 100 µs to 5 s (200 to 350) ps (125 to 175) ps (50 to 85) ps (21 to 29) ps 50 Ω 1 MΩ 0.091 ms/s 0.28 ps 1.1 µs/s 0.30 µs/s 57 ps 27 ps 19 ps 9.1 ps 0.060 Ω 0.0012 MΩ 5520A W/SC1100 Fluke 9500B/9530 5520A W/SC1100 Fluke 9500B/9530 Fluke 9500B/9560 Fluke 9500B/9550 5520A W/SC1100, Fluke 9500B/9530 Rise Time – Measure3 ≥ 150 ps ≥ 500 ps ≥ 15 ps ≥ 25 ps ≥ 70 ps 12 ps 28 ps 4.0 ps 4.0 ps 12 ps DSA8300 (80E04) DSA8300 (80E01) Period – Measure 3 Fixed Points 10.000 ns 100.00 ns 1000.0 ns 1.0000 ms 10.000 ms 0.000 013 ps 0.000 13 ps 0.0013 ps 1.3 ps 14 ps Agilent/HP 53131A Fluke 910R Pulse Width – Measure3 4.0 ns 20.00 ns 100.0 ns 0.062 ns 0.065 ns 0.13 ns Agilent / HP 53131A Fluke 910R Input Resistance - Generate3 50 Ω 1 MΩ 2.3 x 10-2 Ω 3.1 x 102 Ω ESI DB62

(A2LA Cert. No. 3272.01) 8/28/2025 Page 18 of 31 Parameter/Equipment Range CMC2 (±) Comments Electrical Calibration of Thermocouple Indicators - Generate & Measure 3 Type B Type K Type S Type R Type N Type E Type J Type T Type C Type L Type U (600 to 1820) °C (-200 to 1372) °C (0 to 1767) °C (0 to 1767) °C (100 to 1300) °C (-250 to 1000) °C (-210 to 1200) °C (-250 to 400) °C (0 to 2316) °C (-200 to 900) °C (-200 to 600) °C 0.077 °C 0.029 °C 0.065 °C 0.057 °C 0.029 °C 0.029 °C 0.039 °C 0.030 °C 0.080 °C 0.030 °C 0.038 °C Fluke 5522A, Agilent 3458A Electrical Calibration of RTDs Indicators – Generate & Measure 3 Pt385 (100 Ω) Pt385 (200 Ω) Pt385 (500 Ω) Pt385 (1000 Ω) Pt3916 (100 Ω) (-200 to 200) °C (200 to 800) °C (-200 to 200) °C (200 to 630) °C (-200 to 200) °C (200 to 630) °C (-200 to 200) °C (200 to 630) °C (-200 to 200) °C (200 to 630) °C 0.007 °C 0.017 °C 0.006 °C 0.013 °C 0.006 °C 0.015 °C 0.007 °C 0.014 °C 0.007 °C 0.013 °C Fluke 5522A, Agilent 3458A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 19 of 31 Parameter/Equipment Range CMC2 (±) Comments Electrical Calibration of RTDs – Generate & Measure3 (cont) Pt3916 (100 Ω) Pt3926 (100 Ω) Ni (120 Ω) Gu (10 Ω) (-200 to 200) °C (200 to 630) °C (-200 to 200) °C (200 to 630) °C (-80 to 260) °C (-100 to 260) °C 0.0070 °C 0.013 °C 0.0070 °C 0.013 °C 0.0040 °C 0.013 °C Fluke 5522A, Agilent 3458A Phase – Measure3 (-180 to 180)° (-180 to 180)° (-180 to 180)° (-180 to 180)° 5 Hz to 2 kHz (2 to 5) kHz (5 to 10) kHz (10 to 50) kHz (0.015 to 0.026)° (0.050 to 0.11)° (0.070 to 0.17)° (0.070 to 0.20)° Clarke-Hess 6000A II. Electrical – RF/Microwave Parameter/Range Frequency CMC 2, 4 (±) Comments RF Flatness – Measure3 100 mV 300 mV 1 V 3 V (0.1 to 550) MHz (10 to 550) MHz 550 MHz to 1.5 GHz (1.5 to 3) GHz 0.1 MHz to 1 GHz (1 to 3) GHz (0.1 to 550) MHz 550 MHz to 1.5 GHz (1.5 to 3) GHz 0.1 MHz to 2.5 GHz 1.4 % 1.4 % 2.1 % 2.7 % 1.4 % 2.6 % 1.3 % 1.9 % 2.6 % 1.4 % Rhode & Schwarz NRVS & NRV-Z5

(A2LA Cert. No. 3272.01) 8/28/2025 Page 20 of 31 III. Fluid Quantities Parameter/Equipment Range CMC2, 4 (±) Comments Flow – Measuring Equipment 3 (10 to 50) mL/min (50 to 100) mL/min (100 to 500) mL/min (500 to 2500) mL/min (2500 to 5000) mL/min 0.65 % + 0.24 mL/min 0.93 % + 0.27 mL/min 1.0 % + 1.0 mL/min 0.34 % + 28 mL/min 0.80 % + 18 mL/min Sierra M100L, Alica M-2SLPM-D IV. Mechanical Parameter/Equipment Range CMC 2 (±) Comments Pressure - Pneumatic – Measuring Equipment 3 (0 to 100) psi 0.061 psi Martel T-140 V. Thermodynamics Parameter/Equipment Range CMC 2, 4 (±) Comments Temperature – Cold Junction Compensation (19 to 25) °C 0.027 °C Fluke 1595A, Fluke 5626, thermal bath Temperature – Measure (Hot blocks, Chambers, Freezers, Fridges) (-50 to 100) °C (100 to 660) °C 0.009 °C 0.007 % Fluke 1595A, Fluke 5626 Temperature – Measuring Equipment (Thermometers – Digital & Analogue) (-30 to 150) °C (150 to 400) °C (400 to 660) °C 0.02 °C 0.04 °C 0.06 °C Fluke 1595A, Fluke 5626, Fluke 9171, Fluke 9173 IR Temperature – Measuring Equipment (30 to 100) °C (100 to 200) °C (200 to 300) °C (300 to 400) °C (400 to 500) °C 0.54 °C 0.82 °C 1.4 °C 1.8 °C 1.9 °C Fluke 4180 & Fluke 4181

(A2LA Cert. No. 3272.01) 8/28/2025 Page 21 of 31 VI. Time & Frequency Parameter/Equipment Range CMC2 (±) Comments Frequency – Measure 3 10 Hz to 1 kHz 1 kHz to 2 MHz 10 Hz to 1 kHz 1 kHz to 30 MHz 0.35 µHz/Hz 0.020 µHz/Hz 0.30 µHz/Hz 0.090 µHz/Hz Agilent/HP 53131A, Fluke 910R Tektronix FCA3000, Fluke 910R Frequency – Measuring Equipment 3 (0.01 to 119.99) Hz (120 to 1199.9) Hz (1.2 to 11.999) Hz (12.00 to 119.99) kHz (120 to 1199.9) kHz (1.200 to 2.000) MHz 2.9 µHz/Hz + 8.4 µHz 2.7 µHz/Hz + 25 µHz 2.7 µHz/Hz + 0.14 mHz 2.5 µHz/Hz + 1.6 mHz 2.5 µHz/Hz + 5.1 mHz 2.4 µHz/Hz + 0.25 Hz Fluke 5520A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 22 of 31 Satellite Facility TEKTRONIX (CHINA) CO., LTD.- BEIJING BRANCH Room 220, 2/F., No. 1227 Chuangqiao Road Pudong New District, Shanghai, People’s Republic of China Gongsen Wang Phone: 00861057950950 CALIBRATION I. Electrical – DC/Low Frequency Parameter/Equipment Range CMC 2, 5, 6 (±) Comments DC Voltage – Measure 3 (0 to 100) mV (0.1 to 1) V (1 to 10) V (10 to 100) V (100 to 1000) V 5.7 µV/V + 0.83 µV 9.6 µV/V + 0.34 µV 10 µV/V 12 µV/V + 33 µV 21 µV/V - 0.78 mV Agilent / HP 3458A DC Voltage – Generate3 (0 to 320) mV (0.32 to 3.2) V (3.2 to 32) V (32 to 320) V (320 to 1100) V (0 to 220) mV (0.22 to 2.2) V (2.2 to 11) V (11 to 22) V (22 to 220) V (220 to 1100) V 21 µV/V + 1.0 µV 11 µV/V + 2.5 µV 12 µV/V + 23 µV 19 µV/V + 0.19 mV 18 µV/V + 1.9 mV 6.4 µV/V + 0.53 µV 4.6 µV/V + 0.74 µV 3.2 µV/V + 2.6 µV 3.1 µV/V + 39 µV 5.1 µV/V + 0.39 mV 6.7 µV/V + 0.43 mV Fluke 5522A Fluke 5720A DC Current – Measure 3 (0 to 10) µA (10 to 100) µA (0.1 to 1) mA (1 to 10) mA (10 to 100) mA (0.1 to 1) A 1.1 µA/A + 0.64 nA 22 µA/A + 1.1 nA 23 µA/A + 6.2 nA 23 µA/A + 61 nA 41 µA/A + 0.60 µA 0.13 mA/A + 11 µA Agilent / HP 3458A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 23 of 31 Parameter/Equipment Range CMC2, 5, 6 (±) Comments DC Current – Generate 3 (0 to 320) µA (0.32 to 3.2) mA (3.2 to 32) mA (32 to 320) mA (0.32 to 1.1) A (1.1 to 3) A (3 to 11) A (0 to 220) µA (0.22 to 2.2) mA (2.2 to 22) mA (22 to 220) mA (0.22 to 2.2) A (2.2 to 11) A 0.16 mA/A + 17 nA 0.11 mA/A + 54 nA 0.10 mA/A + 0.30 µA 0.10 mA/A + 2.7 µA 0.22 mA/A + 35 µA 0.38 mA/A + 51 µA 0.55 mA/A + 0.58 mA 42 µA/A + 5.7 nA 33 µA/A + 6.5 nA 32 µA/A + 44 nA 0.20 mA/A - 0.90 µA 0.80 µA/A + 12 µA 0.40 mA/A + 0.40 mA Fluke 5522A Fluke 5720A Fluke 5725A Resistance – Measure3 (0 to 10) Ω (10 to 100) Ω (0.1 to 1) kΩ (1 to 10) kΩ (10 to 100) kΩ (0.1 to 1) MΩ (1 to 10) MΩ (10 to 100) MΩ (100 to 1000) MΩ 16 µΩ/Ω + 69 µΩ 13 µΩ/Ω + 0.73 mΩ 11 µΩ/Ω + 1.6 mΩ 12 µΩ/Ω + 14 mΩ 11 µΩ/Ω + 0.16 Ω 18 µΩ/Ω + 2.8 Ω 0.057 mΩ/Ω + 150 Ω 0.59 mΩ/Ω + 1700 Ω 6.0 mΩ/Ω + 11 µΩ Agilent/HP 3458A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 24 of 31 Parameter/Equipment Range CMC2, 5 (±) Comments Resistance – Generate3 Fixed Points (0 to 10.9999) Ω (11 to 32.9999) Ω 33 Ω to 109.9999 kΩ 110 kΩ to 1.099 999 MΩ (1.1 to 3.299 999) MΩ (3.3 to 10.000 00) MΩ (11 to 32.999 99) MΩ (33 to 109.9999) MΩ (110 to 329.9999) MΩ (330 to 1100) MΩ 1 Ω 1.9 Ω 10 Ω 19 Ω 100 Ω 190 Ω 1 k Ω 1.9 k Ω 10 k Ω 19 k Ω 100 k Ω 190 k Ω 1 MΩ 1.9 MΩ 10 MΩ 19 MΩ 100 MΩ 40 µΩ/Ω + 10 µΩ 34 µΩ/Ω + 29 µΩ 28 µΩ/Ω 33 µΩ/Ω + 0.35 Ω 65 µΩ/Ω + 0.86 Ω 0.12 mΩ/Ω + 66 Ω 0.25 mΩ/Ω + 83 Ω 0.49 mΩ/Ω + 520 Ω 3.0 mΩ/Ω 15 mΩ/Ω 0.000 09 Ω 0.000 17 Ω 0.000 22 Ω 0.000 43 Ω 0.000 98 Ω 0.0019 Ω 0.0078 Ω 0.016 Ω 0.080 Ω 0.16 Ω 1.1 Ω 2.4 Ω 18 Ω 0.26 kΩ 0.43 kΩ 6.2 kΩ 13 kΩ Fluke 5522A Fluke 5720A Capacitance – Generate 3 (0.22 to 0.3999) nF (0.4 to 1.0999) nF (1.1 to 3.2999) nF (3.3 to 10.9999) nF (11 to 32.9999) nF (33 to 109.999) nF (110 to 329.999) nF (0.33 to 1.0999) µF (1.1 to 3.2999) µF (3.3 to 10.9999) µF (11 to 32.9999) µF (33 to 109.999) µF (110 to 329.999) µF (0.33 to 1.0999) mF (1.1 to 3.2999) mF (3.3 to 10.9999) mF 5.1 mF/F + 10 pF 6.2 mF/F + 9.7 pF 4.8 mF/F + 12 pF 2.5 mF/F + 11 pF 2.3 mF/F + 0.12 nF 2.5 mF/F + 0.11 nF 2.0 mF/F + 0.60 nF 2.6 mF/F + 1.0 nF 2.0 mF/F + 6.0 nF 2.6 mF/F + 10 nF 3.4 mF/F + 59 nF 4.5 mF/F + 0.11 µF 4.3 mF/F + 0.49 µF 4.5 mF/F + 1.1 µF 4.7 mF/F + 4.7 µF 5.0 mF/F + 9.7 µF Fluke 5522A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 29 of 31 Parameter/Range Frequency CMC2, 5 (±) Comments AC Current – Generate3 (10 to 32.999) mA (33 to 329.99) mA (0.33 to 1.099 99) A (1.1 to 2.999 99) A (3 to 10.9999) A (10 to 22) mA (22 to 220) mA (0.22 to 2.2) A (2.2 to 11) A (10 to 20) Hz (20 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 30) kHz (10 to 20) Hz (20 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 30) kHz (10 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 45) Hz 45 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (45 to 100) Hz 100 Hz to 1 kHz (1 to 5) kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz 20 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz 40 Hz to 1 kHz (1 to 5) kHz (5 to 10) kHz 1.8 mA/A + 1.8 µA 1.0 mA/A + 2.0 µA 0.39 mA/A + 2.4 µA 0.82 mA/A + 2.8 µA 2.0 mA/A + 4.0 µA 3.9 mA/A + 5.8 µA 1.8 mA/A + 21 µA 0.90 mA/A + 28 µA 0.42 mA/A + 21 µA 0.99 mA/A + 54 µA 2.0 mA/A + 0.10 mA 3.9 mA/A + 0.22 mA 1.8 mA/A + 0.11mA 0.52 mA/A + 0.11 mA 6.9 mA/A + 1.0 mA 25 mA/A + 5.1 mA 1.3 mA/A + 1.4 mA 0.62 mA/A + 0.080 mA 5.8 mA/A + 1.3 mA 25 mA/A + 5.3 mA 0.67 mA/A + 2.0 mA 1.1 mA/A + 1.6mA 30 mA/A + 2.1 mA 0.23 mA/A + 0.79 µA 0.16 mA/A + 0.86 µA 0.11 mA/A + 0.87 µA 0.19 mA/A + 0.99 µA 0.90 mA/A + 3.2 µA 0.28 mA/A + 3.2 µA 0.20 mA/A + 2.6 µA 0.16 mA/A + 1.9 µA 0.21 mA/A + 2.9 µA 1.1 mA/A + 7.8 µA 0.41 mA/A + 4.4 µA 0.52 mA/A + 56 µA 6.4 mA/A + 0.11 mA 0.39 mA/A + 0.14 mA 0.74 mA/A + 0.37 mA 2.9 mA/A + 0.43 mA Fluke 5522A Fluke 5720A Fluke 5725A

(A2LA Cert. No. 3272.01) 8/28/2025 Page 31 of 31 II. Time & Frequency Parameter/Equipment Range CMC2 (±) Comments Frequency – Measuring Equipment3 (0.01 to 119.99) Hz (120 to 1199.9) Hz (1.2 to 11.999) kHz (12.00 to 119.99) kHz (120 to 1199.9) kHz (1.200 to 2.000) MHz 2.9 µHz/Hz + 8.4 µHz 2.7 µHz/Hz + 25 µHz 2.7 µHz/Hz + 0.14 mHz 2.5 µHz/Hz + 1.6 mHz 2.5 µHz/Hz + 5.1 mHz 2.4 µHz/Hz + 0.25 Hz Fluke 5522A ________________________________ 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 percentages of reading. 5 The stated measured values are determined using 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’s 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. 6 This scope meets A2LA’s P112 Flexible Scope Policy. 7 The type of instrument or material being calibra ted 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.