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_ _ •rte- _ Y, r <br /> ql; i <br /> P1 <br /> AEGIS ENVIRONMENTAL, INC. <br /> F STANDARD OPERATING PROCEDURES <br /> RL: LABORATORY ANALYTICAL QUALITY ASSURANCE AND CONTROL <br /> SOP-5 <br /> i <br /> t <br /> In addition to routine calibration. of the analytical instruments <br /> with standards and blanks, the laboratory analyst is required to <br /> run duplicates and spikes on 10 percent of the analyses to insure <br /> an added measure of precision and accuracy. Accuracy is also i <br /> verified through the following: } <br /> 1. U.S. Environmental Protection Agency (EPA) and State <br /> certification programs; <br /> 2. Participation in an inter-laboratory or "round-robin" quality , <br /> assurance program; <br /> 3. Verification of results with an alternative method. For f' <br /> example, calcium may be determined by atomic absorption, ion t <br /> chromatography, or titrimetric methods. Volatile organic <br /> compounds may be determined through either purge and trap or 1. 1 <br /> Y.. liquid-liquid extraction methods; and, <br /> 13 <br /> 4. Miscellaneous checks of equipment accuracy. Where trace F ' <br /> analysis is involved, purity of the solvents, reagents and <br /> {„ gases employed is of great concern. The laboratory maintains E' <br /> a service contract on all major instrumentation, including gas <br /> chromatograph; atomic absorption, ion chromatography and total <br /> organic carbon analyzers. Each of these instruments are <br /> r" serviced and maintained regularly. <br /> 3 <br /> ,.;., SOP-5/Oct. 1990 <br /> 9 <br /> i <br />