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■ SOP#12 <br /> Date: 09/01/93 <br /> Page 27 of 31 <br /> PARA31ETER MATRIX CONTAINER PRESERVATION LAB HOLDING <br /> TIMES <br /> 40 ml vial with Teflon- Acidify to pH of 2 or Analysis performed 14 <br /> Water faced septum cap below with days from sample <br /> Purgeable Organic hydrochloric acid. collection <br /> Compounds Refrigerate at V C <br /> (Volatiles) Analysis performed <br /> Soil Brass or stainless steel within 14 days from <br /> liner with Tell .tape Refrigerate at V C sample collection <br /> and plastic ceps <br /> Extract within 7 days <br /> 1 liter glass bottles with from sample collection/ <br /> Extractable Organics Water Teflon-lined cap Refrigerate at 4o C Analyze within 40 days <br /> from sample collection <br /> Extract within 7 days <br /> Brass or stainless steel from sample collection/ <br /> Soil liner with Teflon tape Refrigerate at V C Analyze within 40 days <br /> and plastic caps from sample collection <br /> Water(initial) 1 liter polyethylene Refrigerate at 4°C To be filtered same day <br /> Metals Acidify to pH of 2 or 6 months,except Hg <br /> Water(filtered) 500 ml glass below with nitric add; (28 days)and <br /> Refrigerate at V C CrVI(24 hours) <br /> Soil Brass or stainless steel Refrigerate at 4°C 6 months,except Hg <br /> liner with Teflon tape (13 days)and <br /> and plastic caps CrVI(24 hours) <br /> TABLET <br /> SAMPLE CONTAINERS AND HOLDING TIMES <br /> E ERM-West,Inc. <br />