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.,4. i• �I <br /> 6. Preservatives are required for some types of samples. Use <br /> specially prepared vials from GTFL, marked as indicated <br /> below, or use the appropriate field procedure (SOP 12 for <br /> scidi4ication) . Puke note on forms that samples were <br /> preserved. Always have extra vials in case of problems. <br /> Samples for volatile analysis should be acidified below pH 2 <br /> with hydocloric acid. Use vials with care and keep them <br /> upright. Eye protection, foot protection, and <br /> disposable vinyl gloves are required for handling. <br /> Samples for rvice and acceptablewithout <br /> wzed ithin <br /> out <br /> preservation. <br /> Acid causes burns. Glasses or gogglea (not contact lenses) <br /> are necessary for protection of the eyes. Flush eyes with <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 THIOSULFATE". <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 septum from cap by not inverting cap until in <br /> contact with vial. Disc should have teflon face toward the <br /> water. Also avoid touching white tefloss face with dirty <br /> fingers. <br /> g� Tighten cap securely, invert vial and tap against hand to <br /> see that there are no bubbles inside. <br /> + 10. Label vial using indelible ink as follows <br /> a) Sample I.U. No. <br /> b) Job I.D. No. <br /> c} Date and Time. <br /> d) Type of analysis reques}..ed. <br /> �. e) Your name. <br /> t <br /> r� Lr Ht t1\I N5%TER <br />