BQS ORGANIC BLIND SAMPLES
NAPHTHALENE,
Schedule: 1383 Testid: 34696GCM57
Measured in MICROGRAMS PER LITER
04/13/07 TO 09/18/12
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
NAPHTHALENE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 53 88% 13% 90% 9%
Total 53 88% 13% 90% 9%

Miscellaneous Statistics for the Samples
NAPHTHALENE

Characteristic N % % Basis
Plotted 53 98% Spiked
Estimated Values 3 6% Spiked
Deleted Values 4 3% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 55 .  
False Negatives 1 2% 1 out of 54
Not Spiked 85 .  
False Positives 1 1% 1 out of 82