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�.R <br /> AEGIS ENVIRONMENTAL, INC. <br /> STANDARD OPERATING PROCEDURES <br /> RE: LABORATORY ANALYTICAL QUALITY ASSURANCE AND CONTROL <br /> SOP-5 <br /> ekes on 10 percent of the <br /> u. In addition to routine calibration of the analytical <br /> aly icacatesinstruments with standards and blanks, <br /> the laboratory analyst is required s P is also <br /> ' analyses to insure an added measure of precision and accuracy. Accuracy ' <br /> verified through the following: <br /> .. <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 /> le, calcium may be <br /> or titrimetric methods. <br /> g Verification of results with an alternative method. For exam <br /> determined by atomic absorption�ion etermi edtthrough either purge and trap or <br /> Volatile organic compounds may <br /> liquid-liquid extraction methods; and, <br /> alysis is 4. <br /> Miscellaneous checks of equipment accuracy. Where traceof great concern. The <br /> purity of the solvents, reagents and gases employedstation,including gas <br /> laboratory maintains a service coion <br /> cn chrrol <br /> tion, major instrumen <br /> matography and total organic carbon <br /> chromatograph,atomic absorp <br /> analyzers. Each of these instruments are serviced and maintained regularly. <br /> ATTACWFNTfS0P-5JJunc 1990 - <br />