BQS Organic Blind Sample Program
False Positives & False Negatives
3,4-DICHLOROPHENYL ISOCYANATE
Method: 4433 Testid: 63145GCM99

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The SGPlot Procedure

Updated 08/31/2015

False Positive & Negative Listing for 3,4-DICHLOROPHENYL ISOCYANATE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20140300033 ChemService 1466200: 20 µl & Supelco LC00152: 20 µl 0.32 04/23/14 < 0.32 0.5
  20140370076 NSI 042213WWUF: 20 µl & Crescent 04CC095: 20 µl 0.32 04/23/14 < 0.32 0.488
  20140860103 Crescent 04CC095: 20 µl & Abs 050613WWUF: 20 µl 0.32 04/23/14 < 0.32 0.488
  20140930054 Spex Organics T1130419010: 20 µl & Supelco LC00152: 20 µl 0.32 04/24/14 < 0.32 0.5
  20141010007 Supelco LC06436: 30 µl & Crescent 03DD005: 30 µl 0.32 04/24/14 < 0.32 0.6399
  20141770150 ERA 0227-14-07.1: 30 µl & ChemService 2616300: 30 µl 0.32 07/17/14 < 0.32 0.642
  20141990081 Abs 032814: 30 µl & ERA 0227-14-07.1: 30 µl 0.32 08/20/14 < 0.32 0.642
  20142130131 ERA 0227-14-07.1: 30 µl & Spex Organics E1140402006: 30 µl 0.32 08/21/14 < 0.32 0.642
  20142340162 Crescent 03DD005: 30 µl & ERA 0227-14-07.1: 30 µl 0.32 09/17/14 < 0.32 0.642
  20142470040 ERA 0227-14-07.1: 60 µl & Spex Organics E1140402006: 60 µl 0.32 09/23/14 < 0.32 1.284
False Positive 20093450031 Restek A070024: 40 µl 1.6 02/11/10 E 0.113 0

Updated 08/31/2015