---
instrument_id: '392'
data_file_original_name: 'EPA2261B_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '2809'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/255'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/539/experimentSets/189'
chamber_link: 'https://icarus.ucdavis.edu/chambers/539'
dataset_created_at: '2021-08-26 12:20:50'
dataset_updated_at: '2021-08-26 12:20:50'
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
10/10/2016 7:44:00 AM,-92.9999999993015,20.760091,13.004557,33.764648
10/10/2016 7:45:00 AM,-91.9999999960419,20.304362,13.19987,33.504232
10/10/2016 8:14:00 AM,-62.999999995809,20.450846,13.305664,33.75651
10/10/2016 8:15:00 AM,-61.9999999925494,20.442708,13.305664,33.748372
10/10/2016 8:29:00 AM,-47.9999999993015,20.605468,13.110352,33.71582
10/10/2016 8:30:00 AM,-46.9999999960419,20.55664,13.256836,33.813476
10/10/2016 8:44:00 AM,-32.9999999923166,20.898438,13.151041,34.049479
10/10/2016 8:45:00 AM,-31.9999999995343,21.01237,13.460286,34.472656
10/10/2016 9:14:00 AM,-2.99999999930151,21.142578,13.36263,34.505208
10/10/2016 9:15:00 AM,-1.99999999604188,21.183268,13.419597,34.602865
10/10/2016 9:29:00 AM,12.0000000076834,7.340495,25.553385,32.89388
10/10/2016 9:30:00 AM,13.0000000004657,6.722005,26.180013,32.902018
10/10/2016 9:44:00 AM,27.000000004191,3.149414,28.548177,31.697591
10/10/2016 9:45:00 AM,28.0000000074506,2.945963,28.491211,31.437174
10/10/2016 10:14:00 AM,57.0000000076834,1.64388,28.442383,30.086263
10/10/2016 10:15:00 AM,58.0000000004657,1.432292,28.808593,30.240885
10/10/2016 10:29:00 AM,72.000000004191,1.082357,28.865559,29.947916
10/10/2016 10:30:00 AM,73.0000000074506,1.147461,29.085286,30.232747
10/10/2016 10:44:00 AM,87.0000000006985,0.74056,29.077148,29.817708
10/10/2016 10:45:00 AM,88.0000000039581,0.78125,29.15039,29.93164
10/10/2016 11:14:00 AM,117.000000004191,0.154622,28.922527,29.077149
10/10/2016 11:15:00 AM,118.000000007451,0.105794,28.987631,29.093425
10/10/2016 11:29:00 AM,132.000000000698,0.569661,29.231771,29.801432
10/10/2016 11:44:00 AM,147.000000007683,0.333659,29.557291,29.89095
10/10/2016 11:45:00 AM,148.000000000466,0.488281,29.475911,29.964192
10/10/2016 12:14:00 PM,177.000000000698,0.374349,28.833008,29.207357
10/10/2016 12:15:00 PM,178.000000003958,0.390625,28.857422,29.248047
10/10/2016 12:29:00 PM,192.000000007683,0.341797,28.98763,29.329427
10/10/2016 12:30:00 PM,193.000000000466,0.284831,28.995768,29.280599
10/10/2016 12:44:00 PM,207.000000004191,0.333659,29.15039,29.484049
10/10/2016 12:45:00 PM,208.000000007451,0.358073,28.833008,29.191081
10/10/2016 1:14:00 PM,237.000000007683,0.309245,28.417969,28.727214
10/10/2016 1:15:00 PM,238.000000000466,0.358073,28.369141,28.727214
10/10/2016 1:29:00 PM,252.000000004191,0.447591,28.531901,28.979492
10/10/2016 1:30:00 PM,253.000000007451,0.317383,28.702799,29.020182
10/10/2016 1:44:00 PM,267.000000000698,0.309245,28.580729,28.889974
10/10/2016 1:45:00 PM,268.000000003958,0.227864,28.54004,28.767904
10/10/2016 2:14:00 PM,297.000000004191,0.227864,28.16569,28.393554
10/10/2016 2:15:00 PM,298.000000007451,0.227864,28.247071,28.474935
10/10/2016 2:29:00 PM,312.000000000698,0.276693,28.719075,28.995768
10/10/2016 2:30:00 PM,313.000000003958,0.154622,28.450521,28.605143
10/10/2016 2:44:00 PM,327.000000007683,0.236002,28.417969,28.653971
10/10/2016 2:45:00 PM,328.000000000466,0.358073,28.458659,28.816732
10/10/2016 3:14:00 PM,357.000000000698,0.268555,27.962239,28.230794
10/10/2016 3:15:00 PM,358.000000003958,0.349935,27.970377,28.320312
10/10/2016 3:29:00 PM,372.000000007683,0.292969,28.295898,28.588867
10/10/2016 3:30:00 PM,373.000000000466,0.431315,28.352865,28.78418
10/10/2016 3:44:00 PM,387.000000004191,0.187174,28.304037,28.491211
10/10/2016 3:45:00 PM,388.000000007451,0.219726,28.133138,28.352864
10/10/2016 4:14:00 PM,417.000000007683,0.520833,27.636719,28.157552
10/10/2016 4:15:00 PM,418.000000000466,0.585937,27.661133,28.24707
10/10/2016 4:29:00 PM,432.000000004191,0.056966,14.575195,14.632161
10/10/2016 4:30:00 PM,433.000000007451,0.097656,14.355469,14.453125
10/10/2016 4:44:00 PM,447.000000000698,0.073242,9.057617,9.130859
10/10/2016 4:45:00 PM,448.000000003958,0.016276,8.691406,8.707682
