Organic Blind Sample Program
False Positives & False Negatives
BUTANE
Method: 4440 Testid: 81563GCM66
Link to Individual Chart

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 newdate = 05/13/16 
 falseneg = -0.01  newdate = 04/02/16 
 CENC_VAL = 0.058  newdate = 03/04/16 
 CENC_VAL = 0.064  newdate = 02/18/16 
 CENC_VAL = 0.036  newdate = 01/27/16 
 CENC_VAL = 0.056  newdate = 05/13/16 
 REPORTING LEVEL = 0.038  newdate = 04/02/16 
 REPORTING LEVEL = 0.038  newdate = 04/02/16 
 REPORTING LEVEL = 0.038  newdate = 03/04/16 
 REPORTING LEVEL = 0.038  newdate = 03/04/16 
 REPORTING LEVEL = 0.038  newdate = 02/18/16 
 REPORTING LEVEL = 0.038  newdate = 02/18/16 
 REPORTING LEVEL = 0.038  newdate = 01/27/16 
 REPORTING LEVEL = 0.038  Y = 0
The SGPlot Procedure

Updated 03/27/2018

False Positive & Negative Listing for BUTANE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20161260157 Supelco LC13545: 10 µl & Crescent 04EE008: 10 µl 0.038 05/13/16 < 0.038 0.058

Updated 03/27/2018