BQS OBSP Determination:
1,2,3,4-TETRAMETHYLBENZENE
METHOD: 4440 , TESTIDCODE: 49999GCM66
DATES: 05/01/14 - 11/17/17

Expected Conc. = 0.6674 Median Pct Recovery = 88% Expected Conc. = 0.6674 Median Pct Recovery = 88% Expected Conc. = 0.6674 Median Pct Recovery = 88% Expected Conc. = 0.6674 Median Pct Recovery = 88% Expected Conc. = 0.6674 Median Pct Recovery = 88% Expected Conc. = 0.6674 Median Pct Recovery = 88% Expected Conc. = 0.6674 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4171 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4008 Median Pct Recovery = 88% Expected Conc. = 0.4 Median Pct Recovery = 88% Expected Conc. = 0.4 Median Pct Recovery = 88% Expected Conc. = 0.4 Median Pct Recovery = 88% Expected Conc. = 0.4 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.384 Median Pct Recovery = 88% Expected Conc. = 0.3779 Median Pct Recovery = 88% Expected Conc. = 0.3779 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2503 Median Pct Recovery = 88% Expected Conc. = 0.2267 Median Pct Recovery = 88% Expected Conc. = 0.2267 Median Pct Recovery = 88% Expected Conc. = 0.2267 Median Pct Recovery = 88% Expected Conc. = 0.2267 Median Pct Recovery = 88% Expected Conc. = 0.2267 Median Pct Recovery = 88% Expected Conc. = 0.2267 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2004 Median Pct Recovery = 88% Expected Conc. = 0.2 Median Pct Recovery = 88% Expected Conc. = 0.2 Median Pct Recovery = 88% Expected Conc. = 0.2 Median Pct Recovery = 88% Expected Conc. = 0.2 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.192 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0.1511 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Expected Conc. = 0 Median Pct Recovery = 88% Analysis Date = 01/26/17 SpikeMix = ChemService 5082900: 40 µl & Accu 216041125: 40 µl Pct Recovery = 74% Analysis Date = 12/12/16 SpikeMix = Accu 216041125: 40 µl & Crescent 03FF058: 40 µl Pct Recovery = 104% Analysis Date = 07/20/16 SpikeMix = Supelco LC20141V: 40 µl & Accu 216041125: 40 µl Pct Recovery = 88% Analysis Date = 07/14/16 SpikeMix = Accu 216041125: 40 µl & NSI 041816AVOC: 40 µl Pct Recovery = 78% Analysis Date = 06/17/17 SpikeMix = Accu 216041125: 25 µl & Crescent 03FF058: 25 µl Pct Recovery = 93% Analysis Date = 04/03/17 SpikeMix = Accu 216041125: 25 µl & Crescent 03FF058: 25 µl Pct Recovery = 112% Analysis Date = 02/09/17 SpikeMix = Accu 216041125: 25 µl & NSI 041816AVOC: 25 µl Pct Recovery = 94% Analysis Date = 09/29/16 SpikeMix = ChemService 5082900: 25 µl & Accu 216041125: 25 µl Pct Recovery = 81% Analysis Date = 09/08/16 SpikeMix = Supelco LC20141V: 25 µl & Accu 216041125: 25 µl Pct Recovery = 64% Analysis Date = 05/24/16 SpikeMix = Accu 216041125: 25 µl & Crescent 03FF058: 25 µl Pct Recovery = 90% Analysis Date = 04/09/15 SpikeMix = Accu 214031115: 20 µl & ERA 0227-14-06.1A: 20 µl Pct Recovery = 76% Analysis Date = 08/19/14 SpikeMix = Spex Organics C1140417015: 20 µl & Accu 214031115: 20 µl Pct Recovery = 105% Analysis Date = 07/01/14 SpikeMix = Accu 214031115: 20 µl & ERA 0227-14-06.1A: 20 µl Pct Recovery = 82% Analysis Date = 05/01/14 SpikeMix = Accu 214031115: 20 µl & NSI 032614: 20 µl Pct Recovery = 81% Analysis Date = 11/17/17 SpikeMix = Spex Organics TS170928018: 20 µl & ChemService 6686200: 20 µl Pct Recovery = 104% Analysis Date = 09/01/17 SpikeMix = Abs 070717: 20 µl & Abs 070617: 20 µl Pct Recovery = 102% Analysis Date = 03/19/15 SpikeMix = Spex Organics C1140417015: 20 µl & Crescent 03DD004: 20 µl Pct Recovery = 78% Analysis Date = 12/17/14 SpikeMix = Supelco LC06438: 20 µl & Crescent 03DD004: 20 µl Pct Recovery = 87% Analysis Date = 11/14/14 SpikeMix = Crescent 03DD004: 20 µl & ERA 0227-14-06.1A: 20 µl Pct Recovery = 86% Analysis Date = 06/10/14 SpikeMix = Crescent 03DD004: 20 µl & NSI 032614: 20 µl Pct Recovery = 74% Analysis Date = 09/29/15 SpikeMix = Accu 215041380: 25 µl & ERA 0406-15-03: 25 µl Pct Recovery = 86% Analysis Date = 05/25/17 SpikeMix = Accu 216041125: 15 µl & Crescent 03FF058: 15 µl Pct Recovery = 95% Analysis Date = 12/24/16 SpikeMix = Supelco LC20141V: 15 µl & Accu 216041125: 15 µl Pct Recovery = 69% Analysis Date = 10/13/16 SpikeMix = Accu 216041125: 15 µl & NSI 041816AVOC: 15 µl Pct Recovery = 86% Analysis Date = 08/20/16 SpikeMix = Accu 216041125: 15 µl & Crescent 03FF058: 15 µl Pct Recovery = 99% Analysis Date = 06/30/16 SpikeMix = ChemService 5082900: 15 µl & Accu 216041125: 15 µl Pct Recovery = 54% Analysis Date = 04/02/16 SpikeMix = Supelco LC13545: 15 µl & Accu 215041380: 15 µl Pct Recovery = 82% Analysis Date = 03/04/16 SpikeMix = Accu 215041380: 15 µl & ERA 0406-15-03: 15 µl Pct Recovery = 72% Analysis Date = 06/04/15 SpikeMix = NSI 050515AVOC: 15 µl & Accu 215041380: 15 µl Pct Recovery = 78% Analysis Date = 01/13/15 SpikeMix = Accu 214031115: 10 µl & ERA 0227-14-06.1A: 10 µl Pct Recovery = 102% Analysis Date = 09/09/14 SpikeMix = Accu 214031115: 10 µl & NSI 032614: 10 µl Pct Recovery = 143% Analysis Date = 07/23/14 SpikeMix = Spex Organics C1140417015: 10 µl & Accu 214031115: 10 µl Pct Recovery = 97% Analysis Date = 06/18/14 SpikeMix = Supelco LC06438: 10 µl & Accu 214031115: 10 µl Pct Recovery = 76% Analysis Date = 09/07/17 SpikeMix = Abs 070717: 10 µl & Abs 070617: 10 µl Pct Recovery = 63% Analysis Date = 07/26/17 SpikeMix = Abs 070717: 10 µl & Abs 071317AVOC: 10 µl Pct Recovery = 102% Analysis Date = 11/06/14 SpikeMix = Spex Organics C1140417015: 10 µl & Crescent 03DD004: 10 µl Pct Recovery = 97% Analysis Date = 10/04/14 SpikeMix = Crescent 03DD004: 10 µl & ERA 0227-14-06.1A: 10 µl Pct Recovery = 92% Analysis Date = 07/29/14 SpikeMix = Crescent 03DD004: 10 µl & NSI 032614: 10 µl Pct Recovery = 128% 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 = 81% Analysis Date = 11/20/15 SpikeMix = Accu 215041380: 10 µl & ERA 0406-15-03: 10 µl Pct Recovery = 103% Analysis Date = 11/12/15 SpikeMix = Spex Organics EN150428007: 10 µl & Accu 215041380: 10 µl Pct Recovery = 90% Analysis Date = 05/21/15 SpikeMix = Spex Organics EN150428007: 10 µl & Accu 215041380: 10 µl Pct Recovery = 110% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Median Pct Recovery = 88% Y = 1
The SGPlot Procedure