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.« r <br /> o , 2�eser-ratives are rec::__ed £cr some types of samole:s. Use <br /> specially prepared vials ram GT:, :narked as indicated <br /> below, Or use the c.S3m».^.,J»4ate fie. praceduze (50F <br /> 12 for <br /> acidificatian ) . Make note on forms that samples were <br /> aresezved. Always have extra vials in case or problems. <br /> .or samples from dissr,l-red gasoline sites or other samples <br /> shoudl be acidified below of 2 with sulfuric acid. Use <br /> vials with care and keep them upright. Sye protection, foot <br /> protection, and disposable vinyl. galves are required for <br /> handling. Samples designated for expedited service and <br /> analyzed within seven (7) days of sampling will be accept_ <br /> -- able without preser-rat_on. <br /> Acid causes burns. Glasses or goggles (not contacts) are <br /> necessary for protection of the eyes. Wash eyes with fresh <br /> water for 15 minutes if contact occurs and seek medical <br /> attention. Rinse off hands frequently with water during <br /> handling. <br /> For sampling chlorinated drinking water supplies for <br /> chlorinated volatiles, samples shall be preserved with <br /> sodium thiosulfate. Use vials labeled "CONTAINS TSIOSULF^ATR". <br /> No particular cautions are necessary. <br /> 7. Fill vial to overflowing with water, avoiding turbulence and <br /> bubbling as much as possible. Water should stand above lip <br /> of vial. <br /> S. Carefully but quickly slip cap onto vial. Avoid dropping <br /> the teflon disc from cam by not inverting cap until in <br /> contact with vial. Disc should have teflon face toward the <br /> water. Also avoid touching white teflon face with dirty <br /> fingers. <br /> 9. Tighten cap securely, invert vial and tam against hand to <br /> 1 see that there are no bubbles inside. <br /> 10. Label vial using indelible ink as follows: <br /> a) Sample T.D. NO. (and "Groundwater Technology" if <br /> not on preprinted label) . <br /> b) Job I.D. No. <br /> c) Date and Time. <br /> d) Tyne of analysis requested. <br /> e} You= name. <br /> � I k�' <br /> � �GROUNDWATER <br /> iECHNOLOGY.INC. <br /> GC.NSULTf;1GGACUNAWArEAGZCLCGlS,3S ----- — <br />