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i <br />r. <br />Table 1 <br />Sample Containers, Holding Times and Preservation <br />Holding <br />Parameter <br />------------------------------------------------------------------------------------- <br />Matrix <br />Container <br />Time <br />Preservation <br />Total Petrol. <br />Soil <br />3" stainless steel <br />14 <br />day sl/ <br />4'C <br />Hydrocarbons <br />or brass cylinder <br />40 <br />days/ <br />(Light Fractions) <br />Water <br />40 ml glass vial, <br />14 <br />days l/ <br />4'C <br />HC1 <br />teflon -faced silicon <br />20 <br />days 2/ <br />to <br />pH - 2 <br />septum <br />(Heavy Fractions) <br />Water <br />1 amber bottles, <br />14 <br />days l/ <br />4'C <br />teflon seal/silicon <br />40 <br />days 2/ <br />septum <br />Benzene <br />soil <br />3" stainless steel <br />14 <br />days l/ <br />4*C <br />Toluene <br />or brass cylinder <br />Xylene <br />Ethylbenzene <br />Water <br />40 ml glass vial, <br />7 <br />days l/ <br />4*C <br />MCI <br />teflon seal/silicon <br />14 <br />days 3/ <br />to <br />pH z 2 <br />Purgeable <br />soil <br />3" stainless steel <br />14 <br />days l/ <br />4'C <br />Halocarbons <br />or brass cylinder <br />Water <br />500 ml glass vial, <br />14 <br />days l/ <br />teflon seal/silicon <br />septum <br />Organiclead <br />Soil <br />3" stainless steel <br />14 <br />days l/ <br />4'C <br />or brass cylinder <br />Water <br />40 ml glass vial, <br />14 <br />daysl/ <br />4'C <br />teflon seal/silicon <br />septum <br />Ethylene Dibromide <br />Soil <br />3" stainless steel <br />14 <br />days 2/ <br />4'C <br />or brass cylinder <br />Water <br />40 ml glass vial, <br />14 <br />days l/ <br />4'c <br />teflon faced silicon <br />septum <br />Polynuclear <br />Soil <br />S ,oz. wide mouth <br />14 <br />days l/ <br />4*C <br />Aromatic <br />glass With teflon <br />40 <br />days 2/ <br />Hydrocarbons <br />seal <br />Water <br />1000 ml amber glass <br />7 <br />days l/ <br />4*C <br />with teflon seal <br />40 <br />days 2/ <br />