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x.- <br /> AEGIS ENVIRONMENTAL INC. <br /> C <br /> STANDARD OPERATING PROCEDURES <br /> RE: LABORATORY ANALYTICAL QUALITY ASSURANCE AND CONTROL <br /> SOP-5 <br /> !.0 <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. i <br /> 1. U.S. Environmental Protection Agency (EPA) and State certification programs; <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, ion chromatography, or titrimetric methods. <br /> Volatile organic compounds may be determined through either purge and trap <br /> or liquid-liquid extraction methods; and, <br /> 4. Miscellaneous checks of equipment accuracy. Where trace ace analysis is involved, <br /> purity of the solvents, reagents and gases employed is of great concern. The <br /> 1�= laboratory maintains a service contract on all major instrumentation, Including g <br /> as chromatograph, atomic absorption, ion chromatography and total organic <br /> carbon analyzers. Each of these instruments are serviced and maintained <br /> regularly. j <br /> 1 _ <br /> I <br /> 1 � <br /> 6 <br /> W / <br /> I t <br /> ---- - � FTTACNNIENT/50P•5/June 1990 ----..--------------------- - -- --------- ----- -------- <br />