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Table A-1 <br /> Sample Volume, Container Type, <br /> and Preservation equirements <br /> Volume Required <br /> Parameters (ml) Container Type Preservation <br /> Volatile Halocarbons 40 Glass with Teflon®- HCl to pH<2 <br /> lined septum Cool to 4°C <br /> Volatile Aromatics 40 Glass with Teflon-lined HCI to pH<2 <br /> septum Cool to 4°C <br /> Volatile Organic Compounds 40 Glass with Teflon-lined HCI to pH<2 <br /> septum Cool to 4°C <br /> Semivolatile Organic Compounds 1,000 Glass with Teflon-lined Cool to 4°C <br /> cap <br /> Organochlorine Pesticides and PCBs 1,000 Glass with Teflon-lined Cool to 4°C <br /> cap <br /> Chlorophenoxy Herbicides 1,000 Glass with Teflon-lined Cool to 4°C <br /> cap <br /> Meals'.2 500 Plastic' HNO3 to pH <2 <br /> Cool to 4°C <br /> Bicarbonate Alkalinity 100 Plastic Cool to 4°C <br /> Chemical Oxygen Demand 50 Plastic HZSO4 to pH <2 <br /> Cool to 4°C <br /> Chlorides 50 Plastic Cool to 4°C <br /> Nitrate-Nitrogen 100 Plastic HNO3 to pH <2 <br /> Cool to 4°C <br /> Total Kjeldahl Nitrogen 100 Plastic H2SO4 to pH<2 <br /> Cool to 4°C <br /> Sulfates 50 Plastic Cool to 4°C <br /> Total Dissolved Solids 100 Plastic Cool to 4°C <br /> Metals include aluminum,antimony,arsenic,barium,beryllium,boron,cadmium,calcium,chromium(total),cobalt,copper,iron,lead,magnesium, <br /> manganese,mercury,molybdenum,nickel,potassium, selenium,silver,sodium,thallium,tin,vanadium,and zinc. <br /> 2 Groundwater samples are field filtered through a 0.45-micron acrylic copolymer filter before preservation. <br /> ' Plastic=linear polyethylene. <br /> SAC/pjU0939109390011.8al-94/lfc:9 Rev.0, 10/17/94 <br /> 0939-001.18 A-9 <br />