BQS Organic Blind Sample Program
False Positives & False Negatives
1-METHYLNAPHTHALENE
Method: 4433 Testid: 81696GCM99

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The SGPlot Procedure

Updated 08/31/2015

False Positive & Negative Listing for 1-METHYLNAPHTHALENE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20110840109 Abs 090910WW: 50 µl 0.04 04/15/11 . 0.014 0
  20111390173 ChemService 448-12A: 80 µl 0.04 06/28/11 . 0.014 0
  20112520211 Abs 090910WW: 80 µl 0.04 11/22/11 . 0.018 0
  20113340047 ChemService 448-12A: 50 µl 0.04 02/01/12 E 0.007 0
  20121110020 ChemService 448-12A: 80 µl 0.04 05/22/12 . 0.011 0

Updated 08/31/2015