BQS OBSP Determination:
1,4-DIOXANE
METHOD: 4437 , TESTIDCODE: 81582GM016
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
1,4-DIOXANE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 19 99% 9% 96% 8%
Total 19 99% 9% 96% 8%

Sample Statistics
1,4-DIOXANE

Characteristic N % % Basis
Plotted 19 100% Spiked
Estimated Values 0 0% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 19 .  
False Negatives 0 0% 0 out of 19
Not Spiked 12 .  
False Positives 1 8% 1 out of 12