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uAir <br /> Toxics«D, <br /> ' AN ENVIRONMENTAL ANALYTICAL LABORATORY <br /> ' Definition of Data Qualifying Flags <br /> Six qualifiers may have been used on the data analysis sheets and indicate as follows: <br /> J - Estimated value. <br /> ' E- Exceeds instrument calibration range. <br /> S - Saturated peak. <br /> Q - Exceeds quality control limits. <br /> ' U- Compound analyzed for but not detected above the detection limit <br /> M- Reported value may be biased due to apparent matrix interferences. <br /> ' File extensions may have been used on the data analysis sheets and indicates <br /> as follows: <br /> ' a-File was requantified <br /> b-File was quantified by a second column and detector <br /> rl-File was requantified for the purpose of reissue <br /> 1 <br /> ' Page 3 of 16 <br />