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Appendix E <br /> ONSHE Environmental Laboratories, Inc Revision 0 <br /> Quality Assurance Plan February 15, 1996 <br /> Page 5 of 6 <br /> Gas Blank -t- 5 When CCC Internal standard Midrange standard every 12 One cahbrauon standard <br /> Chromatograph/Mass standards or SPCC fail calibration, hours, must be near but above. <br /> Spectrometer, %RSD <30% for CCCo MDL <br /> CCC 9'oDtff <30/0 of initial <br /> Volatiles Analysts, response factors, response factor(>0 250 for <br /> 8260 Tune with BFB evcry <br /> Bromoform) <br /> RF >0 300 for SPCC 12 hours <br /> msponst, factors (>O 250 SPCC Rh >0 300 (>0 250 for <br /> Bromoform} Special criteria for <br /> for Bromoform) qualitative <br /> Internal standard area counts - identifications <br /> 50% to +100% of Initial area <br /> counts <br /> Retention times ±30 sec from <br /> initial RT <br /> * Non-linear, quadratic and parabolm i quatlons ars not pernwted <br /> ** Working standards for Cadmium, Copper, and Silver by Graphnc, f urnaLe AA and Mercury by Cold Vapor AA are preserved with mirlL aUd but arc, <br /> prepared on each day of use All other metals standards are also preserved with nitric acid and inay be Held with remaking for up to one month <br /> Scandium may be used as an internal standard with ICP standards and samples <br /> *** There is an initial setting of retention time windows for GC analysis which is described to the Calibration Section of the QA Manual <br /> Word 6 0 loefappc doc <br />