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TABLE 1 <br /> SAMPLE CONTAINERS, HOLDING TIMES <br /> AND PRESERVATION <br /> PARAMETER MATRIX CONTAINER HOLDING TIME PRESERVATION <br /> TPH Soil 3"stainless steel or brass 14 days' 4°C <br /> cylinder 40 days2 <br /> (Light Fractions) Water 40 ml glass vial,teflon- 14 days' 4°C HCI to pH <2 <br /> faced silicon septum <br /> (Heavy Fractions) Water 1 L amber bottles,teflon 14 days' 4°C <br /> seal/silicon septum 40 days2 <br /> BTEX Soil 3"stainless steel or brass 14 days' 4°C <br /> cylinder <br /> Water 2-40 ml glass vial,teflon 14 days' 4°C HCI to pH <2 <br /> seal/silicon <br /> Purgeable Halocarbons Soil 3"stainless steel or brass 14 days' 4°C <br /> cylinder <br /> Water 2-40 ml glass vial,teflon 14 days' 4°C <br /> seal/silicon septum <br /> Organic Lead Soil 3"stainless steel or brass 14 days' 4°C <br /> cylinder <br /> Water 1 L amber bottles,teflon 14 days' 4°C <br /> seal/silicon septum <br /> Ethylene Dibromide Soil 3"stainless steel or brass 14 days2 4°C <br /> cylinder <br /> Water 2-40 ml glass vial,teflon 14 days' 4°C <br /> seal/silicon septum <br /> Polynuclear Aromatic Soil 8 oz.wide mouth glass with 14 days' 4°C <br /> Hydrocarbons teflon seal 40 days2 <br /> Water 1000 ml amber glass with 7 days' 4°C <br /> teflon seal 40 days2 <br /> Polychlorinated Soil 8 oz.wide mouth glass with 7 days' 4°C <br /> Biphenyls teflon seal 40 days2 <br /> Water 1000 ml amber glass with 7 days' 4°C <br /> teflon seal 40 days2 <br /> Total Metals Soil 3"stainless steel or brass 6 months 4°C <br /> cylinder <br /> Water 1000 ml plastic 6 months 4°C, HNO3 to pH<2 <br /> Dissolved Metals Water 1000 ml plastic 6 months 4°C, HNO3 to pH<2, <br /> 0.45 Micron Filtration <br /> Pesticides Soil 3"stainless steel or brass 40 days2 4°C <br /> cylinder <br /> Water 1 L glass 40 days2 4°C <br /> ' = Maximum holding time for sample(extract within this time or analyze if extraction is not required. <br /> 2 = Maximum holding time for extract(analyze within this time). <br /> 3 = Maximum holding time for sample when pH adjusted with HCl. <br /> w:\admin\shells\qaqc-02.doc <br /> 16 <br />