---
instrument_id: '392'
data_file_original_name: 'EPA2291B_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '2474'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/372'
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 16:13:38'
dataset_updated_at: '2021-08-24 16:13:38'
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
12/20/2016 10:14:00 AM,-56.0000000044238,15.633138,7.739258,23.372396
12/20/2016 10:15:00 AM,-55.0000000011642,15.755208,7.48698,23.242188
12/20/2016 10:29:00 AM,-41.0000000079162,15.795898,7.421876,23.217774
12/20/2016 10:30:00 AM,-40.0000000046566,15.958659,7.421875,23.380534
12/20/2016 10:44:00 AM,-26.0000000009313,15.763346,7.934571,23.697917
12/20/2016 10:45:00 AM,-25.0000000081491,15.738932,7.942708,23.68164
12/20/2016 11:14:00 AM,3.99999999208376,14.827474,8.75651,23.583984
12/20/2016 11:15:00 AM,4.99999999534339,11.401367,12.011719,23.413086
12/20/2016 11:29:00 AM,18.9999999990687,1.017253,20.898437,21.91569
12/20/2016 11:30:00 AM,19.9999999918509,1.196289,20.678711,21.875
12/20/2016 11:44:00 AM,33.9999999955762,0.838216,21.036784,21.875
12/20/2016 11:45:00 AM,34.9999999988358,0.301107,21.199544,21.500651
12/20/2016 12:14:00 PM,63.9999999990687,0.358073,19.767252,20.125325
12/20/2016 12:15:00 PM,64.9999999918509,0.284831,19.970703,20.255534
12/20/2016 12:29:00 PM,78.9999999955762,0.634766,19.677734,20.3125
12/20/2016 12:30:00 PM,79.9999999988358,0.333659,20.011393,20.345052
12/20/2016 12:44:00 PM,93.9999999920838,0.325521,19.970703,20.296224
12/20/2016 12:45:00 PM,94.9999999953434,0.358073,20.166015,20.524088
12/20/2016 1:14:00 PM,123.999999995576,-0.024414,20.247395,20.222981
12/20/2016 1:15:00 PM,124.999999998836,0.398763,20.450846,20.849609
12/20/2016 1:29:00 PM,138.999999992084,0.179036,20.475261,20.654297
12/20/2016 1:30:00 PM,139.999999995343,0.756836,20.084635,20.841471
12/20/2016 1:44:00 PM,153.999999999069,0.406901,20.792643,21.199544
12/20/2016 1:45:00 PM,154.999999991851,0.447591,20.654297,21.101888
12/20/2016 2:14:00 PM,183.999999992084,0.260417,20.239257,20.499674
12/20/2016 2:15:00 PM,184.999999995343,-0.016276,20.304362,20.288086
12/20/2016 2:29:00 PM,198.999999999069,0.61849,20.442708,21.061198
12/20/2016 2:30:00 PM,199.999999991851,0.561523,20.784506,21.346029
12/20/2016 2:44:00 PM,213.999999995576,0.349935,20.686849,21.036784
12/20/2016 2:45:00 PM,214.999999998836,0.195313,20.849609,21.044922
12/20/2016 3:14:00 PM,243.999999999069,0.415039,20.157877,20.572916
12/20/2016 3:15:00 PM,244.999999991851,0.154622,20.524089,20.678711
12/20/2016 3:29:00 PM,258.999999995576,0.301107,20.361328,20.662435
12/20/2016 3:30:00 PM,259.999999998836,0.244141,20.540364,20.784505
12/20/2016 3:44:00 PM,273.999999992084,0.097656,20.548503,20.646159
12/20/2016 3:45:00 PM,274.999999995343,0.154622,20.654297,20.808919
12/20/2016 4:14:00 PM,303.999999995576,0.398763,19.588216,19.986979
12/20/2016 4:15:00 PM,304.999999998836,0.349935,19.881185,20.23112
12/20/2016 4:29:00 PM,318.999999992084,0.447591,19.905599,20.35319
12/20/2016 4:30:00 PM,319.999999995343,0.048828,20.279948,20.328776
12/20/2016 4:44:00 PM,333.999999999069,0.455729,19.913737,20.369466
12/20/2016 4:45:00 PM,334.999999991851,0.398763,19.759114,20.157877
