BQS OBSP Determination:
HEXACHLOROBUTADIENE
METHOD: 4054 , TESTIDCODE: 39702GCM66
Open Data Set

Analysis Date = 11/15/00 SpikeMix = NSI 053100-01: 25 µl Pct Recovery = 105% Analysis Date = 08/16/00 SpikeMix = NSI 053100-01: 25 µl Pct Recovery = 109% Y = 1.5 Y = 0.5 Y = 1
The SGPlot Procedure

Plotted Points Statistics
HEXACHLOROBUTADIENE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 2 107% 3% 107% 3%
Total 2 107% 3% 107% 3%

Sample Statistics
HEXACHLOROBUTADIENE

Characteristic N % % Basis
Plotted 2 40% Spiked
Estimated Values 0 0% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 3 60% Spiked
Spiked 5 .  
False Negatives 0 0% 0 out of 5
Not Spiked 31 .  
False Positives 0 0% 0 out of 31