BQS OBSP Determination:
NITROBENZENE
METHOD: 4437 , TESTIDCODE: 34447GM016
DATES: 05/07/14 - 09/09/17

 Expected Conc. = 4.04 
 Median Pct Recovery = 102%  Expected Conc. = 4.04 
 Median Pct Recovery = 102%  Expected Conc. = 4.04 
 Median Pct Recovery = 102%  Expected Conc. = 4.04 
 Median Pct Recovery = 102%  Expected Conc. = 4.04 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 3.992 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.525 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.495 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4112 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.4 
 Median Pct Recovery = 102%  Expected Conc. = 2.25 
 Median Pct Recovery = 102%  Expected Conc. = 2.25 
 Median Pct Recovery = 102%  Expected Conc. = 2.25 
 Median Pct Recovery = 102%  Expected Conc. = 2.25 
 Median Pct Recovery = 102%  Expected Conc. = 2.245 
 Median Pct Recovery = 102%  Expected Conc. = 2.245 
 Median Pct Recovery = 102%  Expected Conc. = 2.245 
 Median Pct Recovery = 102%  Expected Conc. = 2.245 
 Median Pct Recovery = 102%  Expected Conc. = 1.8 
 Median Pct Recovery = 102%  Expected Conc. = 1.8 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.515 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.497 
 Median Pct Recovery = 102%  Expected Conc. = 1.35 
 Median Pct Recovery = 102%  Expected Conc. = 1.35 
 Median Pct Recovery = 102%  Expected Conc. = 1.35 
 Median Pct Recovery = 102%  Expected Conc. = 1.35 
 Median Pct Recovery = 102%  Expected Conc. = 1.35 
 Median Pct Recovery = 102%  Expected Conc. = 1.35 
 Median Pct Recovery = 102%  Expected Conc. = 1.347 
 Median Pct Recovery = 102%  Expected Conc. = 1.347 
 Median Pct Recovery = 102%  Expected Conc. = 1.347 
 Median Pct Recovery = 102%  Expected Conc. = 1.347 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2056 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 1.2 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.9 
 Median Pct Recovery = 102%  Expected Conc. = 0.898 
 Median Pct Recovery = 102%  Expected Conc. = 0.898 
 Median Pct Recovery = 102%  Expected Conc. = 0.898 
 Median Pct Recovery = 102%  Expected Conc. = 0.898 
 Median Pct Recovery = 102%  Expected Conc. = 0.898 
 Median Pct Recovery = 102%  Expected Conc. = 0.898 
 Median Pct Recovery = 102%  Expected Conc. = 0.898 
 Median Pct Recovery = 102%  Analysis Date = 03/09/17 
 SpikeMix = NSI 110916: 40 µl & Phenova B20160303: 40 µl 
 Pct Recovery = 106%  Analysis Date = 12/05/16 
 SpikeMix = Abs 060916HVOC: 40 µl & Phenova B20160303: 40 µl 
 Pct Recovery = 91%  Analysis Date = 09/23/16 
 SpikeMix = Phenova B20160303: 40 µl & Accu 216041354: 40 µl 
 Pct Recovery = 91%  Analysis Date = 02/02/17 
 SpikeMix = Abs 060916HVOC: 40 µl & ChemService 5082800: 40 µl & Accu 216041225: 40 µl 
 Pct Recovery = 81%  Analysis Date = 01/24/17 
 SpikeMix = ChemService 5082800: 40 µl & Supelco LC20145V: 40 µl 
 Pct Recovery = 88%  Analysis Date = 10/21/16 
 SpikeMix = ChemService 5082800: 40 µl & Supelco LC20145V: 40 µl & NSI 041416HVOC: 40 µl 
 Pct Recovery = 99%  Analysis Date = 06/29/16 
 SpikeMix = NSI 041516: 40 µl & ChemService 5082800: 40 µl 
 Pct Recovery = 103%  Analysis Date = 03/10/17 
 SpikeMix = Phenova B20160303: 25 µl & Supelco LC20145V: 25 µl & Accu 216041225: 25 µl 
 Pct Recovery = 108%  Analysis Date = 11/10/16 
 SpikeMix = NSI 041516: 25 µl & Phenova B20160303: 25 µl & Accu 216041225: 25 µl 
 Pct Recovery = 133%  Analysis Date = 09/08/16 
 SpikeMix = Abs 060916HVOC: 25 µl & Phenova B20160303: 25 µl & NSI 041416HVOC: 25 µl 
 Pct Recovery = 103%  Analysis Date = 08/11/16 
 SpikeMix = Phenova B20160303: 25 µl & Supelco LC20145V: 25 µl & NSI 041416HVOC: 25 µl 
 Pct Recovery = 85%  Analysis Date = 06/17/17 
 SpikeMix = Abs 060916HVOC: 25 µl & ChemService 5082800: 25 µl 
 Pct Recovery = 73%  Analysis Date = 12/23/16 
 SpikeMix = ChemService 5082800: 25 µl & Accu 216041354: 25 µl & NSI 041416HVOC: 25 µl 
 Pct Recovery = 119%  Analysis Date = 08/31/16 
 SpikeMix = ChemService 5082800: 25 µl & Accu 216041354: 25 µl 
 Pct Recovery = 101%  Analysis Date = 07/14/16 
 SpikeMix = NSI 041516: 25 µl & ChemService 5082800: 25 µl & NSI 041416HVOC: 25 µl 
 Pct Recovery = 81%  Analysis Date = 08/13/14 
 SpikeMix = ERA 0321-14-05: 20 µl & Accu 214031128: 20 µl 
 Pct Recovery = 90%  Analysis Date = 07/23/14 
 SpikeMix = Accu 214031128: 20 µl & Abs 032014: 20 µl 
 Pct Recovery = 103%  Analysis Date = 07/11/14 
 SpikeMix = ChemService 2615700: 20 µl & Accu 214031128: 20 µl 
 Pct Recovery = 108%  Analysis Date = 05/07/14 
 SpikeMix = NSI 031814: 20 µl & Accu 214031128: 20 µl 
 Pct Recovery = 100%  Analysis Date = 03/19/15 
 SpikeMix = Supelco LC06437: 20 µl & NSI 031814: 20 µl 
 Pct Recovery = 112%  Analysis Date = 02/26/15 
 SpikeMix = ERA 0321-14-05A: 20 µl & Supelco LC06437: 20 µl 
 Pct Recovery = 123%  Analysis Date = 08/20/14 
 SpikeMix = Supelco LC06437: 20 µl & Abs 032014: 20 µl 
 Pct Recovery = 95%  Analysis Date = 06/07/14 
 SpikeMix = ChemService 2615700: 20 µl & Supelco LC06437: 20 µl 
 Pct Recovery = 105%  Analysis Date = 06/26/15 
 SpikeMix = ChemService 3818700: 25 µl & Accu 215041338: 25 µl 
 Pct Recovery = 90%  Analysis Date = 06/25/15 
 SpikeMix = ChemService 3818700: 25 µl & NSI 050515HVOC: 25 µl 
 Pct Recovery = 95%  Analysis Date = 01/22/16 
 SpikeMix = NSI 050515HVOC: 25 µl & ERA 0601-15-05: 25 µl 
 Pct Recovery = 102%  Analysis Date = 10/09/15 
 SpikeMix = ERA 0601-15-05: 25 µl & Accu 215041338: 25 µl 
 Pct Recovery = 102%  Analysis Date = 08/16/17 
 SpikeMix = ChemService 6441300: 15 µl & Spex Organics BW170726021: 15 µl & ChemService 6424 
 Pct Recovery = 74%  Analysis Date = 08/01/17 
 SpikeMix = Abs 062917: 15 µl & Phenova B20160303: 15 µl 
 Pct Recovery = 92%  Analysis Date = 03/24/17 
 SpikeMix = Abs 060916HVOC: 15 µl & Phenova B20160303: 15 µl & Accu 216041225: 15 µl 
 Pct Recovery = 106%  Analysis Date = 02/24/17 
 SpikeMix = Phenova B20160303: 15 µl & Accu 216041354: 15 µl & Accu 216041225: 15 µl 
 Pct Recovery = 94%  Analysis Date = 01/14/17 
 SpikeMix = Phenova B20160303: 15 µl & Supelco LC20145V: 15 µl 
 Pct Recovery = 84%  Analysis Date = 07/06/16 
 SpikeMix = Phenova B20160303: 15 µl & Accu 216041354: 15 µl & NSI 041416HVOC: 15 µl 
 Pct Recovery = 84%  Analysis Date = 06/03/16 
 SpikeMix = NSI 041516: 15 µl & Phenova B20160303: 15 µl & NSI 041416HVOC: 15 µl 
 Pct Recovery = 90%  Analysis Date = 07/14/17 
 SpikeMix = Accu 216041354: 15 µl & ChemService 5082800: 15 µl & Accu 216041225: 15 µl 
 Pct Recovery = 67%  Analysis Date = 05/04/17 
 SpikeMix = Abs 060916HVOC: 15 µl & ChemService 5082800: 15 µl & NSI 041416HVOC: 15 µl 
 Pct Recovery = 102%  Analysis Date = 11/18/16 
 SpikeMix = NSI 110916: 15 µl & ChemService 5082800: 15 µl & Accu 216041225: 15 µl 
 Pct Recovery = 109%  Analysis Date = 10/07/16 
 SpikeMix = Abs 060916HVOC: 15 µl & ChemService 5082800: 15 µl 
 Pct Recovery = 116%  Analysis Date = 08/18/16 
 SpikeMix = Abs 060916HVOC: 15 µl & ChemService 5082800: 15 µl 
 Pct Recovery = 110%  Analysis Date = 07/27/16 
 SpikeMix = ChemService 5082800: 15 µl & Supelco LC20145V: 15 µl & Accu 216041225: 15 µl 
 Pct Recovery = 99%  Analysis Date = 06/23/16 
 SpikeMix = . 
 Pct Recovery = 80%  Analysis Date = 04/28/16 
 SpikeMix = ChemService 3818700: 15 µl & Supelco LC13544: 15 µl 
 Pct Recovery = 89%  Analysis Date = 06/16/15 
 SpikeMix = ChemService 3818700: 15 µl & NSI 050515HVOC: 15 µl 
 Pct Recovery = 98%  Analysis Date = 05/14/15 
 SpikeMix = ChemService 3818700: 15 µl & Supelco LC13544: 15 µl 
 Pct Recovery = 107%  Analysis Date = 09/24/15 
 SpikeMix = Abs 040315: 15 µl & ERA 0601-15-05: 15 µl 
 Pct Recovery = 98%  Analysis Date = 08/24/15 
 SpikeMix = ERA 0601-15-05: 15 µl & Supelco LC13544: 15 µl 
 Pct Recovery = 127%  Analysis Date = 12/13/14 
 SpikeMix = Accu 214031128: 10 µl & NSI 031814: 10 µl 
 Pct Recovery = 122%  Analysis Date = 11/13/14 
 SpikeMix = ERA 0321-14-05A: 10 µl & Accu 214031128: 10 µl 
 Pct Recovery = 102%  Analysis Date = 09/11/14 
 SpikeMix = Accu 214031128: 10 µl & Abs 032014: 10 µl 
 Pct Recovery = 116%  Analysis Date = 05/20/14 
 SpikeMix = ChemService 2615700: 10 µl & Accu 214031128: 10 µl 
 Pct Recovery = 135%  Analysis Date = 09/09/17 
 SpikeMix = Spex Organics BW170726021: 10 µl & Spex Organics BW170725005: 10 µl 
 Pct Recovery = 127%  Analysis Date = 11/22/14 
 SpikeMix = ChemService 2615700: 10 µl & Supelco LC06437: 10 µl 
 Pct Recovery = 104%  Analysis Date = 11/13/14 
 SpikeMix = Supelco LC06437: 10 µl & NSI 031814: 10 µl 
 Pct Recovery = 92%  Analysis Date = 09/06/14 
 SpikeMix = ERA 0321-14-05: 10 µl & Supelco LC06437: 10 µl 
 Pct Recovery = 96%  Analysis Date = 06/17/14 
 SpikeMix = Supelco LC06437: 10 µl & Abs 032014: 10 µl 
 Pct Recovery = 96%  Analysis Date = 04/09/16 
 SpikeMix = Abs 040315: 10 µl & ChemService 3818700: 10 µl 
 Pct Recovery = 93%  Analysis Date = 12/10/15 
 SpikeMix = ChemService 3818700: 10 µl & Supelco LC13544: 10 µl 
 Pct Recovery = 117%  Analysis Date = 10/23/15 
 SpikeMix = Abs 040315: 10 µl & ChemService 3818700: 10 µl 
 Pct Recovery = 110%  Analysis Date = 05/20/15 
 SpikeMix = ChemService 3818700: 10 µl & Accu 215041338: 10 µl 
 Pct Recovery = 121%  Analysis Date = 02/12/16 
 SpikeMix = ERA 0601-15-05: 10 µl & Accu 215041338: 10 µl 
 Pct Recovery = 112%  Analysis Date = 12/05/15 
 SpikeMix = NSI 050515HVOC: 10 µl & ERA 0601-15-05: 10 µl 
 Pct Recovery = 115%  Analysis Date = 11/14/15 
 SpikeMix = ERA 0601-15-05: 10 µl 
 Pct Recovery = 105%  Analysis Date = 08/14/15 
 SpikeMix = Abs 040315: 10 µl & ERA 0601-15-05: 10 µl 
 Pct Recovery = 96%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Median Pct Recovery = 102%  Y = 1
The SGPlot Procedure