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Table 1 <br /> Sample Containers, Holding Times and Preservation <br /> Holding <br /> Parameter Matrix Container Time Preservation <br /> ------------------------------------------------------------------------------------- <br /> Total Petrol . Soil 3" stainless steel 14 days l/ 4*C <br /> Hydrocarbons or brass cylinder 40 days 2/ <br /> (Light Fractions) Water 40 ml glass vial, 14 days l/ 4*C HC1 <br /> teflon-faced silicon 20 days 2/ to pH = 2 <br /> septum <br /> (Heavy Fractions) Water 1 amber bottles, 14 days l/ 4'C <br /> teflon seal/silicon 40 days 2/ <br /> septum <br /> Benzene Soil 3" stainless steel 14 days l/ 4*C <br /> Toluene or brass cylinder <br /> Xylene <br /> Ethylbenzene Water 40 ml glass vial, 7 days l/ 4"C HCI <br /> teflon seal/silicon 14 days 3/ to pH = 2 <br /> Purgeable Soil 3" stainless steel 14 days l/ 4*C <br /> Halocarbons or brass cylinder <br /> Water 500 ml glass vial, 14 days l/ <br /> teflon seal/silicon <br /> septum <br /> Organiclead Soil 3" stainless steel 14 days l/ 4*C <br /> or brass cylinder <br /> Water 40 ml glass vial, 1 <br /> 14 days / 4"C <br /> teflon seal/silicon <br /> septum <br /> Ethylene Dibromide Soil 3" stainless steel 14 days 2/ 4'C <br /> or brass cylinder <br /> Water 3-40 ml glass vial, 14 days l/ 4*C <br /> teflon faced silicon <br /> septum <br /> Polynuclear Soil 8 oz. wide mouth 14 days l/ 4'C <br /> Aromatic glass with teflon 40 days 2/ <br /> Hydrocarbons seal <br /> Water 1000 ml amber glass 7 days l/ 4'C <br /> with teflon seal 40 days 2/ <br />