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= mew <br /> I <br /> Appendix E <br /> i <br /> ONSITE Environmental Laboratories, Inc Revision 0 <br /> Quality Assurance Flan Ft bruary 15, 1996 <br /> Page 2 of 6 <br /> Instrument Calibration Calibration Computation Process and Continuing Calibration and Otlicr Criteria (Method <br /> Standards Used Frequency Acceptance Criteria * Acceptance Criteria SpLctfic) <br /> Gas Chromatograph, Blank and 5 When second internal or external standard Midrange standard c.vcry 10th Daily PEM sample for <br /> Semi-volatiles standards source or calibration, %RSD <20% sample and at end of run, breakdown products and <br /> Analysts defining the continuing for response factor t 1510 of the initial calibration column inertness for <br /> linear range *** calibration mean response factor some methods, <br /> checks fail including EPA 608, and <br /> 8080 <br /> One calibration standard <br /> must be near but above <br /> MDL <br /> Second column or <br /> GGMS confirmation <br /> used of doubt exists for <br /> hits <br /> Although permitted by <br /> the method. ONSITE <br /> does not allow single <br /> point calibrations <br /> Ward 6 0 Welappe doc. <br />