BQS OBSP Determination:
1,1-DIFLUOROETHANE
METHOD: 4440 , TESTIDCODE: 49538GCM66
DATES: 05/03/14 - 07/26/17

 Expected Conc. = 0.144 
 Median Pct Recovery = 100%  Expected Conc. = 0.144 
 Median Pct Recovery = 100%  Expected Conc. = 0.144 
 Median Pct Recovery = 100%  Expected Conc. = 0.144 
 Median Pct Recovery = 100%  Expected Conc. = 0.144 
 Median Pct Recovery = 100%  Expected Conc. = 0.144 
 Median Pct Recovery = 100%  Expected Conc. = 0.144 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.09 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.088 
 Median Pct Recovery = 100%  Expected Conc. = 0.085 
 Median Pct Recovery = 100%  Expected Conc. = 0.085 
 Median Pct Recovery = 100%  Expected Conc. = 0.085 
 Median Pct Recovery = 100%  Expected Conc. = 0.085 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.054 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.0516 
 Median Pct Recovery = 100%  Expected Conc. = 0.051 
 Median Pct Recovery = 100%  Expected Conc. = 0.051 
 Median Pct Recovery = 100%  Expected Conc. = 0.051 
 Median Pct Recovery = 100%  Expected Conc. = 0.051 
 Median Pct Recovery = 100%  Expected Conc. = 0.05 
 Median Pct Recovery = 100%  Expected Conc. = 0.05 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.044 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.0344 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0.034 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Expected Conc. = 0 
 Median Pct Recovery = 100%  Analysis Date = 03/16/17 
 SpikeMix = Crescent 03FF058: 40 µl & Supelco LC20141V: 40 µl 
 Pct Recovery = 71%  Analysis Date = 01/04/17 
 SpikeMix = Phenova B20160319: 40 µl & Crescent 03FF058: 40 µl 
 Pct Recovery = 61%  Analysis Date = 12/12/16 
 SpikeMix = Accu 216041125: 40 µl & Crescent 03FF058: 40 µl 
 Pct Recovery = 74%  Analysis Date = 08/04/16 
 SpikeMix = Crescent 03FF058: 40 µl & Supelco LC20141V: 40 µl 
 Pct Recovery = 71%  Analysis Date = 06/23/17 
 SpikeMix = Phenova B20160319: 25 µl & Crescent 03FF058: 25 µl 
 Pct Recovery = 57%  Analysis Date = 06/17/17 
 SpikeMix = Accu 216041125: 25 µl & Crescent 03FF058: 25 µl 
 Pct Recovery = 57%  Analysis Date = 04/03/17 
 SpikeMix = Accu 216041125: 25 µl & Crescent 03FF058: 25 µl 
 Pct Recovery = 77%  Analysis Date = 11/21/16 
 SpikeMix = Crescent 03FF058: 25 µl & Supelco LC20141V: 25 µl 
 Pct Recovery = 60%  Analysis Date = 07/06/16 
 SpikeMix = Crescent 03FF058: 25 µl & ChemService 5082900: 25 µl 
 Pct Recovery = 68%  Analysis Date = 06/21/16 
 SpikeMix = Phenova B20160319: 25 µl & Crescent 03FF058: 25 µl 
 Pct Recovery = 65%  Analysis Date = 05/24/16 
 SpikeMix = Accu 216041125: 25 µl & Crescent 03FF058: 25 µl 
 Pct Recovery = 64%  Analysis Date = 03/19/15 
 SpikeMix = Spex Organics C1140417015: 20 µl & Crescent 03DD004: 20 µl 
 Pct Recovery = 127%  Analysis Date = 03/06/15 
 SpikeMix = ERA 0227-14-06.1A: 20 µl & Supelco LC06438: 20 µl 
 Pct Recovery = 98%  Analysis Date = 12/17/14 
 SpikeMix = Supelco LC06438: 20 µl & Crescent 03DD004: 20 µl 
 Pct Recovery = 89%  Analysis Date = 11/22/14 
 SpikeMix = NSI 032614: 20 µl & Spex Organics C1140417015: 20 µl 
 Pct Recovery = 118%  Analysis Date = 09/21/14 
 SpikeMix = Supelco LC06438: 20 µl 
 Pct Recovery = 106%  Analysis Date = 08/19/14 
 SpikeMix = Spex Organics C1140417015: 20 µl & Accu 214031115: 20 µl 
 Pct Recovery = 133%  Analysis Date = 08/16/14 
 SpikeMix = ERA 0227-14-06.1A: 20 µl & Spex Organics C1140417015: 20 µl 
 Pct Recovery = 134%  Analysis Date = 06/10/14 
 SpikeMix = NSI 032614: 20 µl & Supelco LC06438: 20 µl 
 Pct Recovery = 96%  Analysis Date = 08/15/15 
 SpikeMix = Supelco LC13545: 25 µl & Crescent 04EE008: 25 µl 
 Pct Recovery = 117%  Analysis Date = 06/16/15 
 SpikeMix = ERA 0406-15-03: 25 µl & Supelco LC13545: 25 µl 
 Pct Recovery = 106%  Analysis Date = 05/25/17 
 SpikeMix = Accu 216041125: 15 µl & Crescent 03FF058: 15 µl 
 Pct Recovery = 57%  Analysis Date = 01/13/17 
 SpikeMix = Crescent 03FF058: 15 µl & ChemService 5082900: 15 µl 
 Pct Recovery = 70%  Analysis Date = 09/28/16 
 SpikeMix = Crescent 03FF058: 15 µl & ChemService 5082900: 15 µl 
 Pct Recovery = 60%  Analysis Date = 09/08/16 
 SpikeMix = Phenova B20160319: 15 µl & Crescent 03FF058: 15 µl 
 Pct Recovery = 69%  Analysis Date = 08/20/16 
 SpikeMix = Accu 216041125: 15 µl & Crescent 03FF058: 15 µl 
 Pct Recovery = 65%  Analysis Date = 04/26/16 
 SpikeMix = ERA 0406-15-03: 15 µl & Spex Organics EN150428007: 15 µl 
 Pct Recovery = 89%  Analysis Date = 02/05/16 
 SpikeMix = ERA 0406-15-03: 15 µl & Spex Organics EN150428007: 15 µl 
 Pct Recovery = 105%  Analysis Date = 11/04/15 
 SpikeMix = NSI 050515AVOC: 15 µl & Spex Organics EN150428007: 15 µl 
 Pct Recovery = 101%  Analysis Date = 10/16/15 
 SpikeMix = ERA 0406-15-03: 15 µl & Spex Organics EN150428007: 15 µl 
 Pct Recovery = 96%  Analysis Date = 05/09/15 
 SpikeMix = Spex Organics EN150428007: 15 µl & Crescent 04EE008: 15 µl 
 Pct Recovery = 115%  Analysis Date = 04/02/16 
 SpikeMix = Supelco LC13545: 15 µl & Accu 215041380: 15 µl 
 Pct Recovery = 109%  Analysis Date = 12/18/15 
 SpikeMix = Supelco LC13545: 15 µl & Crescent 04EE008: 15 µl 
 Pct Recovery = 106%  Analysis Date = 07/26/17 
 SpikeMix = Abs 070717: 10 µl & Abs 071317AVOC: 10 µl 
 Pct Recovery = 98%  Analysis Date = 11/06/14 
 SpikeMix = Spex Organics C1140417015: 10 µl & Crescent 03DD004: 10 µl 
 Pct Recovery = 124%  Analysis Date = 10/21/14 
 SpikeMix = ERA 0227-14-06.1A: 10 µl & Supelco LC06438: 10 µl 
 Pct Recovery = 101%  Analysis Date = 09/09/14 
 SpikeMix = NSI 032614: 10 µl & Spex Organics C1140417015: 10 µl 
 Pct Recovery = 130%  Analysis Date = 07/23/14 
 SpikeMix = Spex Organics C1140417015: 10 µl & Accu 214031115: 10 µl 
 Pct Recovery = 143%  Analysis Date = 07/11/14 
 SpikeMix = Spex Organics C1140417015: 10 µl & ERA 0227-14-06.1A: 10 µl 
 Pct Recovery = 123%  Analysis Date = 06/18/14 
 SpikeMix = Supelco LC06438: 10 µl & Accu 214031115: 10 µl 
 Pct Recovery = 110%  Analysis Date = 05/30/14 
 SpikeMix = NSI 032614: 10 µl & Supelco LC06438: 10 µl 
 Pct Recovery = 105%  Analysis Date = 05/03/14 
 SpikeMix = Crescent 03DD004: 10 µl & Supelco LC06438: 10 µl 
 Pct Recovery = 105%  Analysis Date = 02/18/16 
 SpikeMix = Spex Organics EN150428007: 10 µl & Accu 215041380: 10 µl 
 Pct Recovery = 100%  Analysis Date = 11/12/15 
 SpikeMix = Spex Organics EN150428007: 10 µl & Accu 215041380: 10 µl 
 Pct Recovery = 107%  Analysis Date = 09/03/15 
 SpikeMix = NSI 050515AVOC: 10 µl & Spex Organics EN150428007: 10 µl 
 Pct Recovery = 99%  Analysis Date = 05/21/15 
 SpikeMix = Spex Organics EN150428007: 10 µl & Accu 215041380: 10 µl 
 Pct Recovery = 117%  Analysis Date = 05/13/16 
 SpikeMix = Supelco LC13545: 10 µl & Crescent 04EE008: 10 µl 
 Pct Recovery = 80%  Analysis Date = 03/17/16 
 SpikeMix = NSI 050515AVOC: 10 µl & Supelco LC13545: 10 µl 
 Pct Recovery = 94%  Analysis Date = 12/10/15 
 SpikeMix = NSI 050515AVOC: 10 µl & Supelco LC13545: 10 µl 
 Pct Recovery = 100%  Analysis Date = 06/27/15 
 SpikeMix = ERA 0406-15-03: 10 µl & Supelco LC13545: 10 µl 
 Pct Recovery = 117%  Analysis Date = 05/09/15 
 SpikeMix = Supelco LC13545: 10 µl & Crescent 04EE008: 10 µl 
 Pct Recovery = 139%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Median Pct Recovery = 100%  Y = 1
The SGPlot Procedure