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Page -12- <br /> Volume Holding <br /> Analysis Container (mL) Preservation Time <br /> Selenium (Se) Plastic 200 HNO3, pH less than 2 6 month <br /> Silica (Si02) Plastic 50 Cool, 4°C 7 days <br /> Silver (Ag) Plastic 200 HNO3' pH less than 2 b month <br /> Sodium (Na) Plnstic 200 <br /> Sodium Percent (Na) Plastic 200 <br /> Sodium absorption Plastic 200 <br /> ratio (SAR) <br /> Solids, settleable Plastic/glass 1000 Cool, 4°C 48 hour <br /> Solids, suspended Plastic/glass 100 Cool, 4°C 7 days <br /> Solids, volatile Plastic/glass 100 Cool, 4°C 7 days <br /> Sulfate (SO4 Plastic/glass 50 Cool, 4°C 7 days <br /> Sulfide Plastic/glass 600 2 ml ZnC2H302 24 hour <br /> Tannin 6 Lignin Glass 250 <br /> Thallium (T1) Plastic 200 HNO3, pH less than 2 6 montl <br /> Tin (Sn) Plastic 200 HNO3, pH less than 2 6 montl <br /> Titration - Plastic/glass 250 Cool, 4°C 14 days <br /> 1 pH adjustment <br /> Turbidity Plastic/glass 100 Cool, 4°C 48 hour <br /> Vanadium (V) Plastic 200 HN030 pH less than 2 6 montl <br /> Zinc (Zn) Plastic 200 HNO3' pH less than 2 6 monrl <br /> Radioactivity <br /> i <br /> Gross Alpha 6 Beta* Plastic 1000 HNO3' pH less than 2 6 montl <br /> Total Radium (Ra) Plastic 1000 HNO3' pli less than 2 28 days <br /> Total Uranium (U) Plastic 1000 HC1, pH less than 2 6 montl <br /> * For non-preserved samples, the holding time is 5 days. <br /> For preserved samples, please provide either a non-preserved sample (100 mL) <br /> or the E.C. (obtained prior to acidification). <br /> RECEIVED MIM. 4 3 1 ':11:+ <br />