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I"IWf `.► <br />TABLE 1 <br />SAMPLE CONTAINERS HOLDING TIMES & PRESERVATION <br />Total Petroleum <br />Soil <br />3" stainless steel or brass <br />14 days'/ <br />4°C <br />Hydrocarbons <br />cylinder <br />40 days2/ <br />(Light Fractions) <br />Water <br />40 ml glass vial, teflon- <br />14 days'/ <br />4°C HCI <br />faced silicon septum <br />20 days2/ <br />to pH =2 <br />(Heavy Fractions) <br />Water <br />1 amber bottles, teflon <br />14 days'/ <br />4°C <br />seat/silicon septum <br />40 days2/ <br />Benzene <br />Soil <br />3" stainless steel or brass <br />14 days'/ <br />4°C <br />Toluene <br />cylinder <br />Xylenes <br />7 days'/ <br />Ethylbenzene <br />Water <br />40 ml glass vial. teflon <br />14 days3/ <br />4°C HCI <br />seal/silicon <br />to pH = 2 <br />Purgeable <br />Soil <br />3" stainless steel or brass <br />14 days'/ <br />4°C <br />Halocarbons <br />cylinder <br />Water <br />500 ml glass vial, teflon <br />14 days'/ <br />4°C <br />seal/silicon septum <br />Organic <br />Soil <br />3" stainless steel or brass <br />14 days'/ <br />4°C <br />Lead <br />cylinder <br />Water <br />40 ml glass vial, teflon <br />14 days'/ <br />4°C <br />seal/silicon septum <br />Ethylene <br />Soil <br />3" stainless steel or brass <br />14 days'/ <br />4°C <br />Dibromide <br />cylinder <br />Water <br />40 ml glass vial, teflon <br />14 days'/ <br />4°C <br />faced silicon septum <br />Polynuclear <br />Soil <br />8 oz. wide mouth glass <br />14 days'/ <br />4°C <br />Aromatic <br />with teflon seal <br />40 days'/ <br />Hydrocarbons <br />Water <br />1000 ml amber glass with <br />7 days'/ <br />4°C <br />teflon seal <br />40 days2/ <br />Poly -Chlorinated <br />Soil <br />8 oz. wide mouth glass <br />7 days'/ <br />4°C <br />Biphenyls <br />with teflon seal <br />40 days2/ <br />Water <br />1000 ml amber glass with <br />7 days'/ <br />4°C <br />teflon seal <br />40 days'/ <br />Total Metals <br />Soil <br />3" stainless steel, or brass <br />6 months <br />cylinder <br />Water <br />1000 ml plastic <br />6 months <br />pH<2 <br />Dissolved Metals <br />Water <br />1000 ml plastic <br />6 months <br />pH2, 0.45 Micron <br />Filtration <br />