---
instrument_id: '443'
data_file_original_name: 'EPA2269A_HTDMA.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'Growth_Factor_unitless'
dataset_id: '2440'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/281'
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 16:06:59'
dataset_updated_at: '2021-08-24 16:06:59'
instrument_link: 'https://icarus.ucdavis.edu/chambers/539/instruments/443'
instrument:
    id: '443'
    short_name: 'HTDMA'
    full_name: 'Hygroscopicity Tandem Differential Mobility Analyzer'
    manufacturer: 'Home-made'
    model: 'TSI3081, TSI3771'
    year: '2006'
    data_recording_software: 'Labview Program'
    data_analysis_software: 'Custom MATLAB script'
    raw_data_time_resolution: '1s'
    analysis_data_averaging: '180s to 600s'
    detection_limit: 'N/A'
    quantification_limit: ''
    sensitivity_to_temperature: 'N/A'
    sensitivity_to_relative_humidity: 'N/A'
    sampling_method: 'Direct gas sampling'
    sample_preparation_method: 'None'
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: ''
    flow_rate: 'Sheath 2.5 lpm; Main 0.25 lpm'
    tubing_material: 'Copper'
    chemical_identification_method: 'None'
    data_analysis_method: 'The HTDMA data that were recorded in scanning mode are analyzed using a custom MATLAB script. Particle size distribution, as a function of time are displayed. Hygroscopicity is indicated by the size difference of the selected particles after the 1st and 2nd DMA.'
    quantification_method: 'Signal strength is converted to partial number/size distribution by designed transfer functions. Concentration is not important for this instrument but the sizes selected by the two DMAs.'
    calibration_method: 'Atomizing Ammonium Sulfate Aerosol into the system with the particle growing device off and check the scanning size with the first DMA under different measuring modes.'
    calibration_drift_estimate: 'No estimate'
    calibration_schedule: 'Annually'
    uncertainty_estimation_method: 'Duplication of the same experimental conditions.'
    known_interferences: 'N/A'
    link_to_supplemental_information: 'N/A'
    additional_notes: ''
    organization_id: '547'
    created_at: '2020-06-09T00:37:45.000000Z'
    updated_at: '2020-06-09T00:37:45.000000Z'
    column_descriptors: "(b) Experimental_Time = relative time, t=0 is defined as the start of the reaction (dark) or light given time (BL/Arc); \r\n(c) Growth_Factor = Index for particle qualitative hygroscopicity (the ratio between the volume after particles getting through the growing chamber and before the entrance)."
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: '1/4'''' OD; 0.152'''' ID'
    what_is_measured: 'Particle Hygroscopicity'
    measurement_uncertainty: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c) Growth_Factor (+/- ?%)'
    measurement_units: '(a) Local_Time (N/A); (b) Experimental_Time (min); (c) Growth_Factor (N/A)'

---
Local_Time_PST,Experimental_Time_min,Growth_Factor_unitless
10/26/2016 9:50:00 AM,-21.0000000055879,3.451
10/26/2016 9:52:00 AM,-18.9999999990687,0.665
10/26/2016 9:53:00 AM,-17.999999995809,0.681
10/26/2016 9:54:00 AM,-17.0000000030268,0.76
10/26/2016 9:56:00 AM,-14.9999999965075,1.771
10/26/2016 9:57:00 AM,-14.0000000037253,0
10/26/2016 9:59:00 AM,-11.999999997206,0
10/26/2016 10:00:00 AM,-11.0000000044238,0.649
10/26/2016 10:02:00 AM,-8.99999999790452,0.655
10/26/2016 10:03:00 AM,-8.00000000512227,1.986
10/26/2016 10:04:00 AM,-7.00000000186265,0.797
10/26/2016 10:06:00 AM,-5.00000000582077,0.515
10/26/2016 10:07:00 AM,-4.00000000256114,0.358
10/26/2016 10:09:00 AM,-1.99999999604188,0.932
10/26/2016 10:10:00 AM,-1.00000000325963,0.693
10/26/2016 10:12:00 AM,1.00000000325963,0.28
10/26/2016 10:13:00 AM,1.99999999604188,0.279
10/26/2016 10:15:00 AM,4.00000000256114,1.847
10/26/2016 10:16:00 AM,4.99999999534339,0.421
10/26/2016 10:17:00 AM,5.99999999860302,0.431
10/26/2016 10:19:00 AM,7.9999999946449,0
10/26/2016 10:20:00 AM,8.99999999790452,0.915
10/26/2016 10:22:00 AM,10.9999999939464,1.369
10/26/2016 10:23:00 AM,11.999999997206,0.705
10/26/2016 10:25:00 AM,14.0000000037253,1.515
10/26/2016 10:26:00 AM,14.9999999965075,0.844
10/26/2016 10:28:00 AM,17.0000000030268,0.811
10/26/2016 10:29:00 AM,17.999999995809,1.236
10/26/2016 10:30:00 AM,18.9999999990687,0.886
10/26/2016 10:32:00 AM,20.9999999951106,1.377
10/26/2016 10:33:00 AM,21.9999999983702,1.101
10/26/2016 10:35:00 AM,23.9999999944121,0
10/26/2016 10:36:00 AM,24.9999999976717,0
10/26/2016 10:38:00 AM,27.000000004191,0.974
10/26/2016 10:39:00 AM,27.9999999969732,0
10/26/2016 10:41:00 AM,30.0000000034925,1.945
10/26/2016 10:42:00 AM,30.9999999962747,0.992
10/26/2016 10:43:00 AM,31.9999999995343,1
10/26/2016 10:45:00 AM,33.9999999955762,0.991
10/26/2016 10:46:00 AM,34.9999999988358,0.981
10/26/2016 10:48:00 AM,36.9999999948777,0.993
10/26/2016 10:49:00 AM,37.9999999981374,0.993
10/26/2016 10:51:00 AM,39.9999999941792,0.997
10/26/2016 10:52:00 AM,40.9999999974389,0.994
10/26/2016 10:54:00 AM,43.0000000039581,0.993
10/26/2016 10:55:00 AM,43.9999999967404,1.002
10/26/2016 10:56:00 AM,45,1.003
10/26/2016 10:58:00 AM,46.9999999960419,1.005
10/26/2016 10:59:00 AM,47.9999999993015,1.006
10/26/2016 11:01:00 AM,49.9999999953434,1.009
10/26/2016 11:02:00 AM,50.999999998603,1.009
10/26/2016 11:04:00 AM,52.9999999946449,1.006
10/26/2016 11:05:00 AM,53.9999999979045,1.017
10/26/2016 11:07:00 AM,55.9999999939464,0
10/26/2016 11:08:00 AM,56.999999997206,1.002
10/26/2016 11:10:00 AM,59.0000000037253,1.004
10/26/2016 11:11:00 AM,59.9999999965075,1.003
10/26/2016 11:12:00 AM,60.9999999997672,1.003
10/26/2016 11:14:00 AM,62.999999995809,1.008
10/26/2016 11:15:00 AM,63.9999999990687,1.003
10/26/2016 11:17:00 AM,65.9999999951106,1.006
10/26/2016 11:18:00 AM,66.9999999983702,1.007
10/26/2016 11:20:00 AM,68.9999999944121,1.009
10/26/2016 11:21:00 AM,69.9999999976717,1.01
10/26/2016 11:23:00 AM,72.000000004191,1.01
10/26/2016 11:24:00 AM,72.9999999969732,0.746
10/26/2016 11:25:00 AM,74.0000000002328,1
10/26/2016 11:27:00 AM,75.9999999962747,1.007
10/26/2016 11:28:00 AM,76.9999999995343,1.005
10/26/2016 11:30:00 AM,78.9999999955762,1.003
10/26/2016 11:31:00 AM,79.9999999988358,1.003
10/26/2016 11:33:00 AM,81.9999999948777,1.003
10/26/2016 11:34:00 AM,82.9999999981374,0.998
10/26/2016 11:35:00 AM,84.000000001397,0.997
10/26/2016 11:37:00 AM,85.9999999974389,1
10/26/2016 11:38:00 AM,87.0000000006985,1.007
10/26/2016 11:40:00 AM,88.9999999967404,1.004
10/26/2016 11:41:00 AM,90,1.355
10/26/2016 11:43:00 AM,91.9999999960419,1.008
10/26/2016 11:44:00 AM,92.9999999993015,1.011
10/26/2016 11:46:00 AM,94.9999999953434,1.007
10/26/2016 11:47:00 AM,95.999999998603,1.009
10/26/2016 11:48:00 AM,97.0000000018626,1.009
10/26/2016 11:50:00 AM,98.9999999979045,0.748
10/26/2016 11:51:00 AM,100.000000001164,1.011
10/26/2016 11:53:00 AM,101.999999997206,1.007
10/26/2016 11:54:00 AM,103.000000000466,1.008
10/26/2016 11:56:00 AM,104.999999996508,1.009
10/26/2016 11:57:00 AM,105.999999999767,1.01
10/26/2016 11:59:00 AM,107.999999995809,1.013
10/26/2016 12:00:00 PM,108.999999999069,1.01
10/26/2016 12:01:00 PM,110.000000002328,1.01
10/26/2016 12:03:00 PM,111.99999999837,1.011
10/26/2016 12:04:00 PM,113.00000000163,1.011
10/26/2016 12:06:00 PM,114.999999997672,1.007
10/26/2016 12:07:00 PM,116.000000000931,1.007
10/26/2016 12:09:00 PM,117.999999996973,1.012
10/26/2016 12:10:00 PM,119.000000000233,1.003
10/26/2016 12:12:00 PM,120.999999996275,1.01
10/26/2016 12:13:00 PM,121.999999999534,1.006
10/26/2016 12:14:00 PM,123.000000002794,1.008
10/26/2016 12:16:00 PM,124.999999998836,1.009
10/26/2016 12:17:00 PM,126.000000002095,1.005
10/26/2016 12:19:00 PM,127.999999998137,1.006
10/26/2016 12:20:00 PM,129.000000001397,1.009
10/26/2016 12:22:00 PM,130.999999997439,1.009
10/26/2016 12:23:00 PM,132.000000000698,1.007
10/26/2016 12:25:00 PM,133.99999999674,1.01
10/26/2016 12:26:00 PM,135,1.006
10/26/2016 12:27:00 PM,136.00000000326,1.003
10/26/2016 12:29:00 PM,137.999999999302,1.008
10/26/2016 12:30:00 PM,139.000000002561,1.008
10/26/2016 12:32:00 PM,140.999999998603,1.011
10/26/2016 12:33:00 PM,142.000000001863,1.012
10/26/2016 12:35:00 PM,143.999999997905,1.008
10/26/2016 12:36:00 PM,145.000000001164,1.008
10/26/2016 12:38:00 PM,146.999999997206,1.012
10/26/2016 12:39:00 PM,148.000000000466,1.01
10/26/2016 12:40:00 PM,149.000000003725,1.01
10/26/2016 12:42:00 PM,150.999999999767,1.007
10/26/2016 12:43:00 PM,152.000000003027,1.01
10/26/2016 12:45:00 PM,153.999999999069,1.008
10/26/2016 12:46:00 PM,155.000000002328,1.007
10/26/2016 12:48:00 PM,156.99999999837,1.007
10/26/2016 12:49:00 PM,158.00000000163,1.006
10/26/2016 12:51:00 PM,159.999999997672,0.805
10/26/2016 12:52:00 PM,161.000000000931,1.002
10/26/2016 12:53:00 PM,162.000000004191,1.005
10/26/2016 12:55:00 PM,164.000000000233,1.009
10/26/2016 12:56:00 PM,165.000000003492,1.006
10/26/2016 12:58:00 PM,166.999999999534,1.007
10/26/2016 12:59:00 PM,168.000000002794,1.008
10/26/2016 1:01:00 PM,169.999999998836,1.009
10/26/2016 1:02:00 PM,171.000000002095,1.011
10/26/2016 1:04:00 PM,172.999999998137,1.009
10/26/2016 1:05:00 PM,174.000000001397,1.009
10/26/2016 1:06:00 PM,174.999999994179,1.009
10/26/2016 1:08:00 PM,177.000000000698,1.009
10/26/2016 1:09:00 PM,178.000000003958,1.008
10/26/2016 1:11:00 PM,180,1.007
10/26/2016 1:12:00 PM,181.00000000326,1.009
10/26/2016 1:14:00 PM,182.999999999302,1.009
10/26/2016 1:15:00 PM,184.000000002561,1.008
10/26/2016 1:17:00 PM,185.999999998603,1.009
10/26/2016 1:18:00 PM,187.000000001863,1.005
10/26/2016 1:19:00 PM,187.999999994645,1.005
10/26/2016 1:21:00 PM,190.000000001164,1.009
10/26/2016 1:22:00 PM,190.999999993946,1.008
10/26/2016 1:24:00 PM,193.000000000466,1.008
10/26/2016 1:25:00 PM,194.000000003725,1.006
10/26/2016 1:27:00 PM,195.999999999767,1.006
10/26/2016 1:28:00 PM,197.000000003027,1.009
10/26/2016 1:30:00 PM,198.999999999069,1.011
10/26/2016 1:31:00 PM,200.000000002328,1.015
10/26/2016 1:32:00 PM,200.999999995111,1.013
10/26/2016 1:34:00 PM,203.00000000163,1.011
10/26/2016 1:35:00 PM,203.999999994412,1.01
10/26/2016 1:37:00 PM,206.000000000931,1.008
10/26/2016 1:38:00 PM,207.000000004191,1.009
10/26/2016 1:40:00 PM,209.000000000233,1.009
10/26/2016 1:41:00 PM,210.000000003492,1.018
10/26/2016 1:43:00 PM,211.999999999534,1.013
10/26/2016 1:44:00 PM,213.000000002794,1.009
10/26/2016 1:45:00 PM,213.999999995576,1.008
10/26/2016 1:47:00 PM,216.000000002095,1.011
10/26/2016 1:48:00 PM,216.999999994878,1.009
10/26/2016 1:50:00 PM,219.000000001397,1.009
10/26/2016 1:51:00 PM,219.999999994179,1.01
10/26/2016 1:53:00 PM,222.000000000698,1.013
10/26/2016 1:54:00 PM,223.000000003958,1.015
10/26/2016 1:56:00 PM,225,1.013
10/26/2016 1:57:00 PM,226.00000000326,1.015
10/26/2016 1:58:00 PM,226.999999996042,1.012
10/26/2016 2:00:00 PM,229.000000002561,0.839
10/26/2016 2:01:00 PM,229.999999995343,0.999
10/26/2016 2:03:00 PM,232.000000001863,0.995
10/26/2016 2:04:00 PM,232.999999994645,0.997
10/26/2016 2:06:00 PM,235.000000001164,1.001
10/26/2016 2:07:00 PM,235.999999993946,0.998
10/26/2016 2:09:00 PM,238.000000000466,1.203
10/26/2016 2:10:00 PM,239.000000003725,1.01
10/26/2016 2:11:00 PM,239.999999996508,1.009
10/26/2016 2:13:00 PM,242.000000003027,1.01
10/26/2016 2:14:00 PM,242.999999995809,1.01
10/26/2016 2:16:00 PM,245.000000002328,1.015
10/26/2016 2:17:00 PM,245.999999995111,0.84
10/26/2016 2:19:00 PM,248.00000000163,0.998
10/26/2016 2:20:00 PM,248.999999994412,1.004
10/26/2016 2:22:00 PM,251.000000000931,0.998
10/26/2016 2:23:00 PM,252.000000004191,0.996
10/26/2016 2:24:00 PM,252.999999996973,0.996
10/26/2016 2:26:00 PM,255.000000003492,0.993
10/26/2016 2:27:00 PM,255.999999996275,0.993
10/26/2016 2:29:00 PM,258.000000002794,0.997
10/26/2016 2:30:00 PM,258.999999995576,1
10/26/2016 2:32:00 PM,261.000000002095,1
10/26/2016 2:33:00 PM,261.999999994878,0.994
10/26/2016 2:35:00 PM,264.000000001397,0.995
10/26/2016 2:36:00 PM,264.999999994179,1.002
10/26/2016 2:37:00 PM,265.999999997439,0.995
10/26/2016 2:39:00 PM,268.000000003958,0.997
10/26/2016 2:40:00 PM,268.99999999674,1.003
10/26/2016 2:42:00 PM,271.00000000326,0.998
10/26/2016 2:43:00 PM,271.999999996042,0.998
10/26/2016 2:45:00 PM,274.000000002561,1.002
10/26/2016 2:46:00 PM,274.999999995343,0.997
10/26/2016 2:48:00 PM,277.000000001863,1.001
10/26/2016 2:49:00 PM,277.999999994645,1.006
10/26/2016 2:50:00 PM,278.999999997905,1.005
10/26/2016 2:52:00 PM,280.999999993946,0.999
10/26/2016 2:53:00 PM,281.999999997206,1.003
10/26/2016 2:55:00 PM,284.000000003725,0.995
10/26/2016 2:56:00 PM,284.999999996508,0.999
10/26/2016 2:58:00 PM,287.000000003027,1.001
10/26/2016 2:59:00 PM,287.999999995809,0.998
10/26/2016 3:01:00 PM,290.000000002328,1.004
10/26/2016 3:02:00 PM,290.999999995111,1.003
10/26/2016 3:03:00 PM,291.99999999837,1.003
10/26/2016 3:05:00 PM,293.999999994412,1.003
10/26/2016 3:06:00 PM,294.999999997672,1.008
10/26/2016 3:08:00 PM,297.000000004191,0.995
10/26/2016 3:09:00 PM,297.999999996973,1.006
10/26/2016 3:11:00 PM,300.000000003492,1
10/26/2016 3:12:00 PM,300.999999996275,0.998
10/26/2016 3:14:00 PM,303.000000002794,1.006
10/26/2016 3:15:00 PM,303.999999995576,1.007
10/26/2016 3:16:00 PM,304.999999998836,1.005
10/26/2016 3:18:00 PM,306.999999994878,1.007
10/26/2016 3:19:00 PM,307.999999998137,1.005
10/26/2016 3:21:00 PM,309.999999994179,1.007
10/26/2016 3:22:00 PM,310.999999997439,1.008
10/26/2016 3:24:00 PM,313.000000003958,1.003
10/26/2016 3:25:00 PM,313.99999999674,1.006
10/26/2016 3:27:00 PM,316.00000000326,1.004
10/26/2016 3:28:00 PM,316.999999996042,1.007
10/26/2016 3:29:00 PM,317.999999999302,1.003
10/26/2016 3:31:00 PM,319.999999995343,1.007
10/26/2016 3:32:00 PM,320.999999998603,1.014
10/26/2016 3:34:00 PM,322.999999994645,1.008
10/26/2016 3:35:00 PM,323.999999997905,1.016
10/26/2016 3:37:00 PM,325.999999993946,1.008
10/26/2016 3:38:00 PM,326.999999997206,1.007
10/26/2016 3:40:00 PM,329.000000003725,1.002
10/26/2016 3:41:00 PM,329.999999996508,1.003
10/26/2016 3:42:00 PM,330.999999999767,1.01
10/26/2016 3:44:00 PM,332.999999995809,0.88
10/26/2016 3:45:00 PM,333.999999999069,1
10/26/2016 3:47:00 PM,335.999999995111,0.992
10/26/2016 3:48:00 PM,336.99999999837,1.007
10/26/2016 3:50:00 PM,338.999999994412,1.003
10/26/2016 3:51:00 PM,339.999999997672,1
10/26/2016 3:53:00 PM,342.000000004191,0.998
10/26/2016 3:54:00 PM,342.999999996973,1.008
10/26/2016 3:55:00 PM,344.000000000233,0.999
10/26/2016 3:57:00 PM,345.999999996275,1.003
10/26/2016 3:58:00 PM,346.999999999534,1.006
10/26/2016 4:00:00 PM,348.999999995576,1.006
10/26/2016 4:01:00 PM,349.999999998836,1.128
10/26/2016 4:03:00 PM,351.999999994878,1.005
10/26/2016 4:04:00 PM,352.999999998137,1.01
10/26/2016 4:06:00 PM,354.999999994179,1.012
10/26/2016 4:07:00 PM,355.999999997439,1.006
10/26/2016 4:08:00 PM,357.000000000698,1.009
10/26/2016 4:10:00 PM,358.99999999674,1.015
10/26/2016 4:11:00 PM,360,1.007
10/26/2016 4:13:00 PM,361.999999996042,1.009
10/26/2016 4:14:00 PM,362.999999999302,1.008
10/26/2016 4:16:00 PM,364.999999995343,1.01
10/26/2016 4:17:00 PM,365.999999998603,1.008
10/26/2016 4:19:00 PM,367.999999994645,0.881
10/26/2016 4:20:00 PM,368.999999997905,1.006
10/26/2016 4:21:00 PM,370.000000001164,1.001
10/26/2016 4:23:00 PM,371.999999997206,1.007
10/26/2016 4:24:00 PM,373.000000000466,1.006
10/26/2016 4:26:00 PM,374.999999996508,1.009
10/26/2016 4:27:00 PM,375.999999999767,1.005
10/26/2016 4:29:00 PM,377.999999995809,1.012
10/26/2016 4:30:00 PM,378.999999999069,1.004
10/26/2016 4:32:00 PM,380.999999995111,1.004
10/26/2016 4:33:00 PM,381.99999999837,1.015
10/26/2016 4:34:00 PM,383.00000000163,1.014
10/26/2016 4:36:00 PM,384.999999997672,0.998
