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xM:wl � <br /> rsrz ��,� <br /> s i <br />�e <br /> �!Onzultant PrefW Numtxr SF817S t12A4.72 <br /> COntract Number: N45CV 0424 <br /> Fadlity Numb@ gOW <br /> 44 0 X <br /> 4Yorta OrCer Numbor. OW4129 <br /> l w,n Is+ue Dat.: Fptq 10,I= <br /> Table 4 <br /> INITIAL AND CONTINUING CALIBRATION <br /> VERIFICATION STANDARDS RESULTS <br /> Organic Lead in Soil by Fiame AA <br /> EPA Method 7420 <br /> Date o1 Analysis; i;4/0g/90 <br /> Initial Calibration Ver catfo I Standard <br /> Analyte Expected Result, Observed Result, <br /> gA stabil <br /> Or nlc�Le d 12L Mg/ Recovery,% <br /> 106 80-120 <br /> Continuing tandard <br /> Analyte .ExPe ms Result, Observed Result, Acceptabll ty <br /> Or anis Lead 91L Recovery,% Limas,%I <br /> 1.2 1.187 gg <br /> so-120 <br /> 1 W Acceptability limos are derived from the 99%confidence Interval of all aamples during <br /> the previous quaver. <br /> Tabic 4a <br /> INITIAL AND CONTINUING CALIBRATION <br /> VERIFICATION STANDARDS SOURCE <br /> Organic Lei h Soil by Flame AA <br /> EPA Method 7420 <br /> Initial Calibratlan Verification Standard <br /> ffAmjyl!e <br /> Lot Number <br /> Source <br /> AK215 SPECTRUM <br /> Continuing Calibration Verlfrcation Standard <br /> t Lot Number Source 4718KBHM MALLINGKRODT <br /> GTEL Concord,CA <br /> D004124.DOC Peps 4 of S <br /> GTE L <br /> [MYNOMNI <br /> lAR0 RA I6RlI{, iNCNIC <br />