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' i " <br /> ;. preservatives are required for some types of samples. Use <br /> apecially prepared vials from GTEL, marked as indicated <br /> below, or use the appropriate field procedure (SOP 12 fo:. <br /> a:.;idiffcation) . Make note on forms that samples were <br /> preserved. Always have extra vials in case of problems. <br /> Samples for volatile analysis should be ncidified 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 designated for expedited service and analyzed within <br /> seven (7) days of sampling will be acceptable without <br /> preservation. <br /> ycid causes burns. Classtes or goggles (not contact lenses) <br /> are necessary for protection of the eyes. Flush eyes with <br /> water for is 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 pra:.erved with <br /> sodium thiosulfate. Use vi�.:ls labeled "CONTAINS THIOSULFATE". <br /> No particular cautions are necessary. <br /> 7. pill vial to overflowing with water, avoiding turbulence and <br /> bubbling as much as possible. Water should stand above lip <br /> of vial. <br /> carefully but quickly slip cap onto vial. Avo.-.d 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 teflon face with dirty <br /> fingers. <br /> 9. Tighten cap securely, invert v'al and tap against hand to <br /> i <br /> see that there are no bubbles nside. <br /> 1o. Label vial using indelible ink as follows: <br /> a) sample I.D. No. <br /> b) job I.D. No. <br /> c) Date and Time. <br /> d) Tyne of analysis requested. <br /> e) Your name. <br /> ti�liP (;R(JV%D%%ATEe <br />