BQS OBSP Determination:
DIETHYL ETHER
METHOD: 4054 , TESTIDCODE: 81576GCM66
DATES: 08/16/00 - 07/31/01

Expected Conc. = 5.92 Median Pct Recovery = 105% Expected Conc. = 5.92 Median Pct Recovery = 105% Expected Conc. = 5.92 Median Pct Recovery = 105% Expected Conc. = 5.92 Median Pct Recovery = 105% Expected Conc. = 5.92 Median Pct Recovery = 105% Expected Conc. = 1.7 Median Pct Recovery = 105% Expected Conc. = 1.7 Median Pct Recovery = 105% Expected Conc. = 1.7 Median Pct Recovery = 105% Analysis Date = 07/31/01 SpikeMix = Ultra S0039: 40 µl Pct Recovery = 108% Analysis Date = 04/11/01 SpikeMix = Ultra S0039: 40 µl Pct Recovery = 105% Analysis Date = 02/22/01 SpikeMix = Ultra S0039: 40 µl Pct Recovery = 122% Analysis Date = 11/15/00 SpikeMix = NSI 053100-01: 25 µl Pct Recovery = 96% Analysis Date = 08/16/00 SpikeMix = NSI 053100-01: 25 µl Pct Recovery = 99% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Median Pct Recovery = 105% Y = 1
The SGPlot Procedure