---
instrument_id: '392'
data_file_original_name: 'EPA2267B_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '2419'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/278'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/539/experimentSets/190'
chamber_link: 'https://icarus.ucdavis.edu/chambers/539'
dataset_created_at: '2021-08-24 16:01:47'
dataset_updated_at: '2021-08-24 16:01:47'
instrument_link: 'https://icarus.ucdavis.edu/chambers/539/instruments/392'
instrument:
    id: '392'
    short_name: 'NOx Box'
    full_name: 'Chemiluminescence NO-NO2-NOx Analyzer'
    manufacturer: 'Thermo Environmental'
    model: 'Model 42'
    year: '1989'
    data_recording_software: 'Labview Program'
    data_analysis_software: 'Custom Excel Program'
    raw_data_time_resolution: '1s'
    analysis_data_averaging: '60s'
    detection_limit: '0.1 ppb'
    quantification_limit: ''
    sensitivity_to_temperature: 'N/A'
    sensitivity_to_relative_humidity: 'N/A'
    sampling_method: 'Direct gas sampling'
    sample_preparation_method: 'Filter particle contents before sampling; One of the measuring streams is flowing through catalyst system to convert NOx to NO'
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: ''
    flow_rate: ''
    tubing_material: 'FEP Teflon'
    chemical_identification_method: 'NO concentration is determined by Chemiluminescence method; NOx concentration is determined by the same method from another sample stream which flows through the catalyst box, assuming the catalyst can convert 100% of the NO2 into NO.'
    data_analysis_method: 'The raw signal is logged by the custom Labview program every second and is averaged to 1 min of the time range. Finally the data is pulled out by a custom Excel script.'
    quantification_method: '[NO2] = [NOx] - [NO].'
    calibration_method: 'Standard NO and NOx gas with known concentrations was introduced into the instrument and calibration factor is calculated based on the comparison. THIS IS DONE EVERYTIME BEFORE AN EXPERIMENT.'
    calibration_drift_estimate: 'No estimate'
    calibration_schedule: 'As Needed'
    uncertainty_estimation_method: 'N/A'
    known_interferences: 'N/A'
    link_to_supplemental_information: 'N/A'
    additional_notes: 'N/A'
    organization_id: '547'
    created_at: '2020-02-25T10:01:39.000000Z'
    updated_at: '2020-03-27T09:37:55.000000Z'
    column_descriptors: '(b) Experimental_Time = relative time, t=0 is defined as the start of the reaction (dark) or light given time (BL/Arc).'
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: '1/4'''' OD; 0.152'''' ID'
    what_is_measured: 'NOx Concentrations'
    measurement_uncertainty: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c)NO_Concentration (+/- ?%); (d) NO2_Concentration (+/- ?%); (e) NOx_Concentration (+/- ?%)'
    measurement_units: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c)NO_Concentration (ppb); (d) NO2_Concentration (ppb); (e) NOx_Concentration (ppb)'

---
Local_Time_PST,Experimental_Time_min,NO_UNCOR_ppb,NO2_UNCOR_ppb,NOx_UNCOR_ppb
10/19/2016 11:14:00 AM,-50.999999998603,15.218099,8.626302,23.844401
10/19/2016 11:15:00 AM,-49.9999999953434,14.868164,8.67513,23.543294
10/19/2016 11:29:00 AM,-35.9999999916181,14.84375,8.496094,23.339844
10/19/2016 11:30:00 AM,-34.9999999988358,14.737956,8.528646,23.266602
10/19/2016 11:44:00 AM,-20.9999999951106,14.957682,8.43099,23.388672
10/19/2016 11:45:00 AM,-19.9999999918509,14.892578,8.43099,23.323568
10/19/2016 12:14:00 PM,9.0000000083819,2.718099,19.425455,22.143554
10/19/2016 12:15:00 PM,10.0000000011642,2.408854,20.19043,22.599284
10/19/2016 12:29:00 PM,24.0000000048894,0.667318,21.280924,21.948242
10/19/2016 12:30:00 PM,25.0000000081491,0.431315,21.402995,21.83431
10/19/2016 12:44:00 PM,39.000000001397,0.187174,21.565756,21.75293
10/19/2016 12:45:00 PM,40.0000000046566,0.154622,21.459961,21.614583
10/19/2016 1:14:00 PM,69.0000000048894,0.032552,21.305339,21.337891
10/19/2016 1:15:00 PM,70.0000000081491,0.04069,21.378581,21.419271
10/19/2016 1:29:00 PM,84.000000001397,-0.157243,21.459547,21.302304
10/19/2016 1:30:00 PM,85.0000000046566,0.392226,21.58043,21.972656
10/19/2016 1:44:00 PM,99.0000000083819,0.276693,21.549479,21.826172
10/19/2016 1:45:00 PM,100.000000001164,-0.024414,21.630859,21.606445
10/19/2016 2:14:00 PM,129.000000001397,0.341797,21.671549,22.013346
10/19/2016 2:15:00 PM,130.000000004657,0.691732,21.427408,22.11914
10/19/2016 2:29:00 PM,144.000000008382,0.333659,21.582031,21.91569
10/19/2016 2:30:00 PM,145.000000001164,-0.12207,21.573893,21.451823
10/19/2016 2:44:00 PM,159.000000004889,0.301107,21.728515,22.029622
10/19/2016 2:45:00 PM,160.000000008149,0.341797,21.671549,22.013346
10/19/2016 3:14:00 PM,189.000000008382,0.179036,21.443685,21.622721
10/19/2016 3:15:00 PM,190.000000001164,0.16276,21.394857,21.557617
10/19/2016 3:29:00 PM,204.000000004889,0.179036,21.370443,21.549479
10/19/2016 3:30:00 PM,205.000000008149,0.211588,21.280925,21.492513
10/19/2016 3:44:00 PM,219.000000001397,0.065104,21.516927,21.582031
10/19/2016 3:45:00 PM,220.000000004657,0.423177,21.492513,21.91569
10/19/2016 4:14:00 PM,249.000000004889,-0.211588,21.394856,21.183268
10/19/2016 4:15:00 PM,250.000000008149,0.146484,21.126303,21.272787
10/19/2016 4:29:00 PM,264.000000001397,0.211588,21.346029,21.557617
10/19/2016 4:30:00 PM,265.000000004657,0.146484,21.313477,21.459961
10/19/2016 4:44:00 PM,279.000000008382,0.138346,21.459961,21.598307
10/19/2016 4:45:00 PM,280.000000001164,0.056966,21.533203,21.590169
10/19/2016 5:14:00 PM,309.000000001397,0.390625,21.150716,21.541341
10/19/2016 5:15:00 PM,310.000000004657,0.211588,20.987956,21.199544
10/19/2016 5:29:00 PM,324.000000008382,0.187174,21.329753,21.516927
10/19/2016 5:30:00 PM,325.000000001164,0.301107,21.069336,21.370443
10/19/2016 5:44:00 PM,339.000000004889,0.130208,21.158855,21.289063
10/19/2016 5:45:00 PM,340.000000008149,-0.008138,21.240234,21.232096
10/19/2016 6:14:00 PM,369.000000008382,-0.252279,20.939128,20.686849
10/19/2016 6:15:00 PM,370.000000001164,0.170898,20.914714,21.085612
10/19/2016 6:29:00 PM,384.000000004889,0.170898,21.085612,21.25651
10/19/2016 6:30:00 PM,385.000000008149,0.113932,20.914714,21.028646
10/19/2016 6:44:00 PM,399.000000001397,0.056966,21.191406,21.248372
10/19/2016 6:45:00 PM,400.000000004657,0.301107,21.118164,21.419271
10/19/2016 7:14:00 PM,429.000000004889,0.130208,20.694987,20.825195
10/19/2016 7:15:00 PM,430.000000008149,0.252279,20.727539,20.979818
10/19/2016 7:29:00 PM,444.000000001397,0.138346,20.865886,21.004232
10/19/2016 7:30:00 PM,445.000000004657,0.146484,19.742839,19.889323
10/19/2016 7:44:00 PM,459.000000008382,-0.04069,2.962239,2.921549
10/19/2016 7:45:00 PM,460.000000001164,-0.024414,2.848307,2.823893
