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BHD Test & Measurement

12421 Washington St, #100, 80241, Thornton, CO, United States

A2LA 3104.01ISO/IEC 17025Register refreshed 2026-10-23
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What this lab is accredited for

We could not match the method references in this lab’s scope to published test standard numbers. The full scope as published is below.

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A2LA certificate 3104.01 · 14 lines

LineMethodMatrixRange
1ISO/IEC 17025:2017; IEC 17025; ANSI/NCSL Z540-1-1994-to 4 in
2-Electronic
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 2 of 13 Parameter/Equipment Range CMC2, 4, 5 (±) Comments Chamfer Check 3 Up to 3 in diameter 120 µin ULM & ring gages Height Gage 3 Up to 36 in (26 + 2.7L) µin Gage blocks Indicators 3 (0.01 to 4) in (13 + 7.1L) µin ULM Bore Gages 3 (0.02 x 0.050) µin 14 µin ULM Plug Gages – Threaded, 60⁰ Pitch Diameter Major Diameter Threaded NPT Up to 6 in Up to 6 in Up to 4 in (64 + 0.31D) µin 19 µin 72 µin ULM & laser interferometer Squareness – Measure Up to 18 in 69 µin Square master Electronic Amplifier Up to 0.2 in 3.5 µin ULM Thickness Gages (Feeler Type) Up to 0.1 in 20 µin ULM Thread Wires (5 to 80) TPI 3.4 µin ULM & laser interferometer Pin Gages Up to 1 in (>1 to 6) in 10 µin 7.2 µin + 2.7 µin/in ULM & gage blocks Ring Gages, Plain (0.05 to 12) in (12 + 1.1D) µin ULM, master rings Thread Rings, 60⁰ Up to 6 in 130 µin Set plug/ULM
to 36 in
3-Steel
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 3 of 13 Parameter/Equipment Range CMC2, 4, 5 (±) Comments NPT Rings Up to 4 in 170 µin Master plug Step Gage 3 Up to 12 in 14 µin Gage blocks & amp w/ gage head Sine Bar Up to 10 in 35 µin Gage blocks & amp w/ gage head Height Master Up to 12 in (6.6 + 2.7L) µin Gage blocks & amp w/ gage head Parallels 3 Up to 10 in 48 µin Gage blocks & amp w/ gage head Levels 3 Up to 12 in 75 µin Sine bar Steel Rules & Tapes Up to 100 ft 130 µin per 60 in Laser interferometer Glass Scale & Reticle Up to 12 in (5.7 + 0.7L) µin Laser interferometer Length 3 – Measure Up to 120 in (1.2 + 0.03L) µin Laser interferometer Angle Block Up to 4 in 15 arc sec Sine bar Protractor Up to 90° 15 arc sec Sine bar
to 4 in
4--
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 4 of 13 II. Electrical – DC/Low Frequency Parameter/Equipment Range CMC2, 6, 7 (±) Comments DC Voltage – Generate 3 Generate & Measure 3 Up 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 (1.0 to 45) kV 11 µV/V 7.0 µV/V 5.0 µV/V 5.8 µV/V 6.9 µV/V 8.0 µV/V 0.076 % Fluke 5730A Fluke 289, HV Inc. DVR-150, DC source DC Voltage – Measure 3 Up to 220 mV (0.22 to 2.2) V (2.2 to 11) V (11 to 22) V (22 to 220) V (220 to 1000) V 9.0 µV/V 6.0 µV/V 4.3 µV/V 5.3 µV/V 6.7 µV/V 6.9 µV/V Fluke 8508A DC Current – Generate & Measure 3 Up to 220 µA (0.22 to 2.2) mA (2.2 to 22) mA (22 to 220) mA (0.22 to 1.1) A (1.1 to 20.0) A 58 μA/A 53 μA/A 53 μA/A 0.05 % 0.023 % 0.17 % Fluke 5730A, Agilent 3458A Fluke 5522A, Fluke 8508A
to 1100 V
5--
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 5 of 13 Parameter/Equipment Range CMC2, 6, 7 (±) Comments DC Resistance – Generate & Measure 3 Fixed Points 3 Up to 1 Ω (1 to 100) Ω (0.10 to 1.0) kΩ (1.0 to 10) kΩ (10 to 100) kΩ (0.10 to 1.0) MΩ (1 to 10) MΩ (1 to 100) MΩ (0.10 to 1.0) GΩ (0.30 to 1.0) GΩ 1 Ω 10 Ω 100 Ω 10 k Ω 0.011 % 45 µΩ/Ω 16 µΩ/Ω 15 µΩ/Ω 17 µΩ/Ω 30 µΩ/Ω 23 µΩ/Ω 0.059 % 0.13 % 0.11 % 35 µΩ/Ω 31 µΩ/Ω 26 µΩ/Ω 17 µΩ/Ω Fluke 5730A, Agilent 3458A-02 Fluke 5522A IETVRS-100-10-1kOhm- ROT Fluke 8508A Fluke-742A-1 IET-SRX-10 IET-SRX-100 Fluke-742A-10K Parameter/Range Frequency CMC2, 6, 7 (±) Comments AC Voltage – Generate (1 to 100) mV (1 to 100) mV (1 to 100) mV (1 to 100) mV (100 to 1000) mV (100 to 1000) mV (100 to 1000) mV (100 to 1000) mV (1 to 10) V (1 to 100) V (1 to 100) V (1 to 100) V (100 to 1000) V (10 to 100) Hz 100 Hz to 1 kHz (1 to 10) kHz (10 to 100) kHz (10 to 100) Hz 100 Hz to 1 kHz (1 to 10) kHz (10 to 100) kHz (1 to 10) kHz (10 to 100) Hz 100 Hz to 1 kHz 100 Hz to 1 kHz 50 Hz to 30 kHz 0.038 % 0.046 % 0.059 % 0.29 % 0.18 % 0.014 % 0.18 % 0.34 % 0.11 % 0.027 % 0.23 % 0.050 % 0.045 % Fluke 5730A, Agilent 3458A-02
to 1 GΩ
6--
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 6 of 13 Parameter/Range Frequency CMC2, 6 (±) Comments AC Voltage – Measure Up to 10 mV (10 to 100) mV 100 mV to 1 V (1 to 10) V (10 to 100) V (1 to 2000) Hz (2 to 10) kHz (10 to 30) kHz (30 to 100) kHz (100 to 300) kHz (300 to 1000) kHz (1 to 4) MHz (4 to 8) MHz (1 to 2000) Hz (2 to 10) kHz (10 to 30) kHz (30 to 100) kHz (100 to 300) kHz (300 to 1000) kHz (1 to 4) MHz (4 to 8) MHz (8 to 10) MHz (1 to 2000) Hz (2 to 10) kHz (10 to 30) kHz (30 to 100) kHz (100 to 300) kHz (300 to 1000) kHz (1 to 4) MHz (4 to 8) MHz (8 to 10) MHz (1 to 2000) Hz (2 to 10) kHz (10 to 30) kHz (30 to 100) kHz (100 to 300) kHz (300 to 1000) kHz (1 to 4) MHz (4 to 8) MHz (8 to 10) MHz (1 to 2000) Hz (2 to 10) kHz (10 to 30) kHz (30 to 100) kHz (100 to 300) kHz (300 to 1000) kHz 1.0 µV + 0.048 % 1.4 µV + 0.035 % 1.1 µV + 0.039 % 1.5 µV + 0.038 % 3.8 µV + 0.31 % 14 µV + 1.0 % 13 µV + 2.1 % 60 µV + 7.4 % 5.3 µV + 0.007 % 4.5 µV + 0.007 % 4.7 µV + 0.017 % 4.9 µV + 0.026 % 31. µV + 0.030 % 0.10 mV + 0.15 % 0.20 mV + 1.1 % 0.73 mV + 2.9 % 1.2 mV + 12 % 6.1 µV + 0.0080 % 11 µV + 0.0082 % 18 µV + 0.026 % 28 µV + 0.026 % 58 µV + 0.061 % 0.24 mV + 0.26 % 1.2 mV + 1.3 % 3.3 mV + 3.3 % 12 mV + 17 % 53 µV + 0.0086 % 85 µV + 0.0084 % 0.25 mV + 0.011 % 0.26 mV + 0.025 % 0.60 mV + 0.058 % 2.6 mV + 0.24 % 13 mV + 1.1 % 33 mV + 6.8 % 0.16 V + 13 % 0.86 mV + 0.010 % 0.84 mV + 0.010 % 1.3 mV + 0.047 % 2.5 mV + 0.027 % 5.8 mV + 0.066 % 24 mV + 1.0 % Fluke 8588A
to 10 V
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 7 of 13 Parameter/Range Frequency CMC2, 6, 7 (±) Comments AC Voltage – Measure (cont) (100 to 1000) V (1 to 150) kV (1 to 1000) Hz (1 to 2) kHz (2 to 10) kHz (10 to 30) kHz (30 to 100) kHz (1 to 1000) Hz 9.6 mV + 0.014 % 9.5 mV + 0.014 % 12 mV + 0.014 % 27 mV + 0.041 % 65 mV + 0.096 % 0.01 V + 0.14 % Fluke 8588A HV Inc. DVR-150, DMM AC Current – Generate & Measure 3 Up to 0.220 mA 2.2 mA (10 to 50) mA (100 to 200) mA (0.5 to 2.0) A (4.0 to 8.0) A (10.0 to 19.0) A Generate: (50 to 1000) A (20 to 3000) A 100 Hz to 10 kHz 100 Hz to 10 kHz 100 Hz to 30 kHz 100 Hz to 30 kHz 10 Hz to 10 kHz 50 Hz to 10 kHz 50 Hz to 5 kHz 60 Hz (50 to 60) Hz 0.19 % 0.20 % 0.09 % 0.50 % 0.10 % 0.11 % 0.11 % 0.20 % 0.94 % Fluke 5730A, Fluke 5725A amplifier Agilent 3458A-02 Fluke 5730A, Agilent 3458A- 02, Fluke 8508A Fluke 5725A amplifier Fluke 5522A Agilent 3458A-02 Fluke multi-turn coils Capacitance – Generate & Measure3 Fixed Points 1.0 pF 10 pF 100 pF 1000 pF 1.0 pF 10 pF 100 pF 1000 pF 1 nF 10 nF 100 nF 1 kHz 1 kHz 1 kHz 1 kHz 300 kHz 300 kHz 300 kHz 300 kHz 1 kHz 1 kHz 1 kHz 0.17 % 0.021 % 0.0017 % 0.0072 % 0.13 % 0.015 % 0.0031 % 0.0001 % 0.087 % 0.011 % 0.010 % Capacitor set, HP 16380A with Keysight E4980AL IET 1413 capacitance decade with Keysight E4980AL
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 8 of 13 Parameter/Range Frequency CMC2, 6, 7 (±) Comments Capacitance – Generate & Measure 3 (cont) 1 nF to 10 000 µF At various frequencies ranging anywhere from 20 Hz to 1 kHz 0.62 % Fluke 5522A calibrator with Keysight E4980AL Inductance – Generate & Measure Fixed Points 3 1 mH 100 mH 1 H 20 Hz to 20 kHz 20 Hz to 10 kHz 20 Hz to 1 kHz 0.14 % 0.11 % 0.48 % Genrad 1482 series standard inductors Keysight E4980A LCR meter Parameter/Equipment Range CMC2 (±) Comments Electrical Calibration of Thermocouples – Thermocouple Simulation 3 Generate & Measure E-Type J-Type K-Type T-Type (-250 to -100) °C (-100 to -25) °C (-25 to 350) °C (350 to 650) °C (650 to 1000) °C (-210 to -100) °C (-100 to -30) °C (-30 to 150) °C (150 to 760) °C (760 to 1200) °C (-200 to -100) °C (-100 to -25) °C (-25 to 120) °C (120 to 1000) °C (1000 to 1372) °C (-250 to -150) °C (-150 to 0) °C (0 to 120) °C (120 to 400) °C 0.41 °C 0.18 °C 0.17 °C 0.18 °C 0.21 °C 0.25 °C 0.18 °C 0.17 °C 0.19 °C 0.23 °C 0.29 °C 0.20 °C 0.18 °C 0.24 °C 0.34 °C 0.51 °C 0.23 °C 0.18 °C 0.17 °C Fluke 5522A
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 9 of 13 Parameter/Equipment Range CMC2, 6, 7 (±) Comments ESD Impulse Current – Measure Voltage: (1 to 30) kV 3.7 % Tek 7354C oscilloscope, EMC partner ESD Veri-V, target 2-DN, Agilent 34401A DMM Oscilloscope – Rise Time, Generate & Measure3 150 ps 36 ps Fluke 9500B, active head 9530, Tek 694C oscilloscope III. Electrical – RF/Microwave Parameter/Range Frequency CMC2, 6 (±) Comments RF Voltage Low Frequency – Generate & Measure3 10 Hz to 1.0 MHz 0.06 VRMS Fluke 9640A-LPN, Fluke 8508A DMM RF Power – Low to Medium Frequency Generate & Measure3 (-110 to +20) dBm (1 to 120) MHz 0.19 dBm Fluke 9640A-LPN synthesized signal generator, HP8902A-050 measuring receiver, HP 11722A sensor RF Power – Generate & Measure3 (10 to -40) dBm (-50 to -110) dBm (10 to -30) dBm (10 to -30) dBm (0 to -30) dBm 20 MHz to 1 GHz 20 MHz to 1.3 GHz (2 to 8) GHz (10 to 20) GHz (22 to 26.5) GHz 0.082 dBm 0.84 dBm 0.49 dBm 0.9 dBm 1.3 dBm HP 8902A-050 measuring receiver; 11793A microwave converter; Fluke 9640A- LPN & HP 8340B generators with 11722A sensor with 11722A sensor with 11792A sensor with 11792A sensor with 11792A sensor
1 to 30 kV
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 10 of 13 Parameter/Range Frequency CMC2, 6 (±) Comments RF Attenuation Tuned RF Level – Generate & Measure3 (0 to -110) dB 10 MHz 50 MHz 1 GHz 4 GHz 10 GHz 15 GHz 18 GHz 0.41 dB 0.43 dB 0.50 dB 0.35 dB 0.71 dB 1.0 dB 0.45 dB Agilent 8902A-050 measuring receiver Agilent 11793A microwave converter, HP 8496B / 8494B step attenuators with Agilent 11722A sensor with 11792A power sensor IV. Mechanical Parameter/Equipment Range CMC2, 7 (±) Comments Torque Wrench 3 (5 to 200) ozꞏin (5 to 50) lbꞏin (50 to 250) lbꞏin (250 to 1000) lbꞏin (83 to 250) lbꞏft (250 to 1000) lbꞏft 0.44 % 0.43 % 0.40 % 0.36 % 0.41 % 0.35 % CDI torque system Torque Transducer (4.8 to 960) ozf.in (5 to 20) lbf.ft (20 to 200) lbf.ft (200 to 1000) lbf.ft 0.0026 ozf.in + 0.0065 % 0.000 44 lbf.ft + 0.0057 % 0.0062 % 0.012 lbf.ft Torque arms, wheels, & weights
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 11 of 13 Parameter/Equipment Range CMC2, 4, 7 (±) Comments Scales & Balances (Up to 1300 lb) 1/32 oz 1/16 oz 1/8 oz 1/4 oz 1/2 oz 1 oz 2 oz 4 oz 0.001 lb 0.002 lb 0.005 lb 0.01 lb 0.02 lb 0.05 lb 0.1 lb 0.2 lb 0.3 lb 0.5 lb 1 lb 2 lb 5 lb 10 lb 20 lb 25 lb 50 lb 100 lb 1 mg 2 mg 3 mg 5 mg 10 mg 20 mg 30 mg 50 mg 100 mg 200 mg 300 mg 500 mg 1 g 2 g 3 g 5 g 10 g 20 g 30 g 50 g 3.5E-05 oz + 0.6R 4.5E-05 oz + 0.6R 5.3E-05 oz + 0.6R 6.9E-05 oz + 0.6R 1.1E-04 oz + 0.6R 2.2E-04 oz + 0.6R 4.5E-04 oz + 0.6R 9.4E-04 oz + 0.6R 1.8E-06 lb + 0.6R 2.2E-06 lb + 0.6R 3.1E-06 lb + 0.6R 3.8E-06 lb + 0.6R 4.6E-06 lb + 0.6R 1.2E-05 lb + 0.6R 2.3E-05 lb + 0.6R 4.6E-05 lb + 0.6R 6.9E-05 lb + 0.6R 4.3E-05 lb + 0.6R 6.0E-05 lb + 0.6R 1.2E-04 lb + 0.6R 2.9E-04 lb + 0.6R 6.0E-04 lb + 0.6R 1.2E-03 lb + 0.6R 1.5E-03 lb + 0.6R 2.9E-03 lb + 0.6R 1.1E-02 lb + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6 R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 1.2E-02 mg + 0.6R 4.0E-02 mg + 0.6R 4.1E-02 mg + 0.6R 4.3E-02 mg + 0.6R 4.9E-02 mg + 0.6R 8.2E-02 mg + 0.6R 1.4E-01 mg + 0.6R 1.9E-01 mg + 0.6R 3.2E-01 mg + 0.6R Class 1, 5, 6 & F weights *Fixed values. Uncertainties are per weight.
to 1300 lb
12-Oil
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 12 of 13 Parameter/Equipment Range CMC2, 4, 5, 7 (±) Comments Scales & Balances (Up to 1300 lb) (cont) 100 g 200 g 300 g 500 g 1 kg 2 kg 3 kg 5 kg 10 kg 20 kg 6.4E-01 mg + 0.6R 1.3E+00 mg + 0.6R 1.9E+00 mg + 0.6R 3.2E+00 mg + 0.6R 6.4E+00 mg + 0.6R 1.3E+01 mg + 0.6R 1.9E+01 mg + 0.6R 3.2E+01 mg + 0.6R 6.4E+01 mg + 0.6R 5.8E+01 mg + 0.6R Class 1, 5, 6 & F weights *Fixed values. Uncertainties are per weight. Pressure/Vacuum 3 – Measure & Measuring Equipment (-1 to 1) inH 2O (-10 to 10) inH2O (-100 to 100) inH2O (-13 to 0) psi (0 to 50) psi (50 to 500) psi (500 to 1015) psi (1015 to 3000) psi (3000 to 10 152) psi (10 152 to 30 000) psi 0.001 inH 2O 0.01 inH2O 0.05 inH2O 0.0023 psi + 0.0080 % 0.0023 psi + 0.0066 % 0.030 psi + 0.0045 % 0.022 psi + 0.039 % 0.18 psi + 0.005 % 0.22 psi + 0.018 % 30 psi + 0.005 % Additel pneumatic pressure calibration system, Fluke electronic deadweight tester, reference pressure gauges IV. Thermodynamics Parameter/Equipment Range CMC 2, 5 (±) Comments Humidity – Measure (10 to 15) % RH (15 to 33) % RH (33 to 75) % RH (75 to 90) % RH (90 to 95) % RH (95 to 97) % RH 1.1 % RH 1.2 % RH 1.3 % RH 1.4 % RH 1.5 % RH 2.2 % RH Vaisala Probe Temperature – Measure & Measuring Equipment (-90 to -39) °C (-39 to 0.01) °C (0.01 to 232) °C (232 to 420) °C (420 to 660) °C 0.018 °C 0.016 °C 0.017 °C 0.023 °C 0.033 °C Temperature probe with dry well, oil bath /temperature chamber
See scope document
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(A2LA Cert. No. 3104.01) 05/29/2025 Page 13 of 13 V. Time & Frequency _________ 1 This laboratory offers commercial calibration service and field calibration service. 2 Calibration and Measurement Capability (CMC) is th e 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, D is the numerical value of the nominal diameter of the device measured in inches; R is the resolution of the unit under test. 5 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. 6 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. 7 The statement of CMC, percenta ges are percentages of reading. 8 This scope meets A2LA’s P112 Flexible Scope Policy. Parameter/Equipment Range CMC2, 5 (±) Comments Frequency – Measuring Equipment & Measure 3 10 MHz Reference 1.0 mHz to 26.5 GHz 4.6 pHz/Hz 36 nHz/Hz Agilent 5071A (cesium beam) Symetricom GPS receiver, Agilent 8340B synthesized sweeper, HP 3325B & HP 5343A frequency counter & time interval counter
14ISO/IEC 17025:2017; ISO-ILAC-IAF Communiqué dated April 2017; IEC 17025; ANSI/NCSL Z540-1-1994 and R205--

Ranges are reproduced from the accredited scope document as published, and only where we found that range printed in the document for the line. Otherwise the cell reads “See scope document”. An absent range means the register did not state one. Line numbers are ours, for cross-reference; they follow the order of the scope document.

Location

12421 Washington St, #100, Thornton, CO, 80241, US

39.86955, -104.98518

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