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VAN i <br /> 1� <br /> IM.. <br /> o Chain-of-custody record for documenting transfer and possession <br /> of samples. <br /> o Laboratory analysis request sheet for documenting analyses to be <br /> performed. <br /> _ <br /> Sample Q- in <br /> Sample containers vary with each type of analytical parameter. Selected <br /> container types and materials are non-reactive with the sample and the <br /> particular analytical parameter being tested. Appropriate containers for <br /> volatile organics are glass bottles of at least 40 milliliters in size fitted <br /> with teflon-faced silicon septa. Sample containers are properly cleaned and <br /> sterilized by the certified laboratory according to the EPA protocol for the <br /> individual analysis. <br /> 1 - <br /> &-2mnlg Preservation and�ghi ment <br /> Various preservatives are used by the certified laboratory to retard changes <br /> in samples. Sample shipment from Exceltech to laboratories performing the <br /> 5 r <br /> selected analyses routinely occurs within 24 hours of sample collection. <br /> ire <br /> Analytical Procedures <br /> The analysis of groundwater samples is conducted in accordance with <br /> accepted quantitative analytical procedures. The following four publications <br /> .r are considered the primary references for groundwater sample analysis, and <br /> --- _`- - - --the-contracts-with--the- laboratories--analyzing--the-samples-stipulate-that--the -- - <br /> -- Latest Revision. October 9, 1987 <br />