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section. The calibration standards should be prepared <br /> using the same type of acid or solvent and at the same <br /> concentration as will result in the samples following <br /> sample preparation. This is applicable to organic and <br /> inorganic chemical analyses. <br /> SURROGATE: An organic compound which is similar to the target <br /> analyte(s) in chemical composition and behavior in the <br /> analytical process, but which is not normally found in <br /> environmental samples. <br /> TRIP BLANK: A sample of analyte-free media taken from the laboratory <br /> to the sampling site and returned to the laboratory <br /> unopened. A trip blank is used to document contamination <br /> attributable to shipping and field handling procedures. <br /> This type of blank is useful in documenting contamination <br /> of volatile organics samples. <br /> 6.0 REFERENCES <br /> 1 . Interim Guidelines and Specifications for Preparing Quality Assurance <br /> Project Plans, QAMS-005/80, December 29, 1980, Office of Monitoring Systems <br /> and Quality Assurance, ORD, U.S. EPA, Washington, DC 20460. <br /> 2. Development of Data Quality Objectives, Description of Stages I and I1, July <br /> 16, 1986, Quality Assurance Management Staff, ORD, U.S. EPA, Washington, DC <br /> 20460. <br /> 3. RCRA Ground-Water Monitoring Technical Enforcement Guidance Document, <br /> September, 1986, Office of Waste Programs Enforcement. OSWER, U.S. EPA, <br /> Washington, DC, 20460. <br /> 4. DQO Training Software, Version 6.5, December, 1988, Quality Assurance <br /> Management Staff, ORD, U.S. EPA, Washington, DC 20460. <br /> 5. Preparing Perfect Project Plans, EPA/600/9-89/087, October 1989, Risk <br /> Reduction Engineering Laboratory (Guy Simes) , Cincinnati OH. <br /> 6. ASTM Method D 1129-77, Specification for Reagent Water. 1991 Annual Book <br /> of ASTM Standards. Volume 11.01 Water and Environmental Technology. <br /> 7. Generation of Environmental Data Related to Waste Management Activities <br /> (Draft) . February 1989. ASTM. <br /> R <br /> ONE - 29 Revision 1 <br /> July 1992 <br />