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M = ® = M <br />Table 1. Sample Methods, <br />Containers, <br />Preservation, <br />and Holding Times. <br />Analytical <br />Sample <br />Constituent <br />Method <br />Tyge <br />Container <br />Preservation <br />Maximum HoldingTime <br />Benzene, Toluene, <br />mod. EPA 602 <br />Water <br />2 x 40 ml <br />No headspace <br />14 days <br />Ethylbenzene, Xylenes <br />VOA bottle <br />Cool <br />to <br />4°C <br />(BTEX) <br />Phenols <br />EPA 604 <br />Water <br />1 x 1 liter <br />Cool <br />to <br />4°C <br />7 days before <br />extraction <br />amber glass bottle <br />40 days after <br />extracts <br />Polynuclear aromatic <br />EPA 610 <br />Water <br />1 x 1 liter <br />Cool <br />to <br />4°C <br />7 days before <br />extraction <br />hydrocarbons (PNAs) <br />amber glass bottle <br />40 days after <br />extraction <br />Cyanide, total <br />EPA 9010 <br />Water <br />1 x 500 ml wide <br />NaOH <br />to <br />pH>12 <br />14 days <br />mouth plastic <br />Cool <br />to <br />4°C <br />bottle <br />Metals <br />EPA 6010 <br />Water <br />1 x 1 liter <br />HNO3 <br />to <br />pH<2 <br />6 months <br />-i- (As, Hg, Ni, Cd, Cu, <br />Nalgene bottle <br />Cool <br />to <br />4°C <br />Zn, Mn, Ag, Sb, Be, <br />Cr, Pb, Se, Th) <br />pH <br />Water <br />1 x 40 ml VOA <br />Cool <br />to <br />4°C <br />24 hours <br />BTEX <br />EPA <br />Soil <br />Brass sleeve with <br />Cool <br />to <br />4°C <br />14 days before <br />extracti <br />8015/8020 <br />Teflon sheet caps <br />40 days after <br />extracti <br />Phenols <br />EPA 8040 <br />Soil <br />Brass sleeve with <br />Cool <br />to <br />4°C <br />14 days before <br />extraction <br />Teflon sheet caps <br />40 days after <br />extraction <br />Polynuclear aromatic <br />EPA 8310 <br />Soil <br />Brass sleeve with <br />Cool <br />to <br />4°C <br />None <br />hydrocarbons (PNAs) <br />Teflon sheet caps <br />Cyanide, total <br />EPA 9010 <br />Soil <br />Brass sleeve with <br />Cool <br />to <br />4°C <br />6 months <br />Teflon sheet caps <br />Metals <br />EPA 6010 <br />Soil <br />Brass sleeve with <br />Cool <br />to <br />4°C <br />6 months <br />(As, Hg, Ni, Cd, Cu, <br />Teflon sheet caps <br />Zn, Mn, Ag, Sb, Be, <br />Cr, Pb, Se, Th) <br />