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AEGIS ENVIRONMENTAL, INC. <br /> STANDARD OPERATING PROCEDURES <br /> RE: LABORATORY ANALYTICAL QUALITY ASSURANCE AND CONTROL <br /> SOP-5 <br /> In addition to routine calibration of the analytical instruments with standards and blanks, <br /> the laboratory analyst is required to run duplicates and spikes on 10 percent of the <br /> analyses to insure an added measure of precision and accuracy Accuracy is also <br /> verified through the following <br /> 1 U S Environmental Protection AgencyEPA and State certification programs, <br /> t ) P 9 <br /> 2 Participation in an inter-laboratory or "round-robin" quality assurance program, <br /> 3 Verification of results with an alternative method For example, calcium may be <br />' determined by atomic absorption, Eon chromatography, or titnmetric methods <br /> Volatile organic compounds may be determined through either purge and trap or <br /> Iliquid-liquid extraction methods, and, <br /> 4 Miscellaneous checks of equipment accuracy Where trace analysis is involved, <br /> purity of the solvents, reagents and gases employed is of great concern. The <br /> laboratory maintains a service contract on all major instrumentation, including gas <br /> chromatograph, atomic absorption, ion chromatography and total organic carbon <br /> analyzers Each of these instruments are serviced and maintained regularly <br /> I <br /> I <br /> I <br /> 1 <br /> I <br /> I <br /> i <br />• <br /> iATTACHMENT/SCF-5/June 1M <br /> I <br />