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6. Preservatives are required for some types of samples. Use <br /> specially prepared vials from GTL, <br /> below, or use the appropriate field mprocedure arked as z(SOP a12dfor <br /> acidification). Make note on forms that samples were <br /> preserved. Always have extra vials in case ofroblems. <br /> For samples from dissolved gasoline sites or other samples <br /> shoudl e acied low pH 2 with sulfuric acid. Use <br /> ff vials with care and keep them upright. Eye protection, foot <br /> i protection, and disposable vinyl y golves are required for <br /> handling. Samples designated for expedited service and <br /> analyzed within seven (7) days of sampl:irig will be accept- <br /> able w4-:sou" preservation. <br /> 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 s-+eek medical <br /> E 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 /> scdiu-� 1 siosulrat_. ase vials labeled "CONTAINS THTOSUF,FATE" i <br /> No particular cautions are necessary. <br /> f <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 /> 8 : Carefully :butE <br /> quickly -slip cap onto vial. Avoid dropping ' <br /> the teflon disc from cap by not inverting cap .until in <br /> as 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 tap against hand to <br /> see that there are no bubbles inside. <br /> f f <br /> { 10.' Label vial using indelible ink as follows; <br /> a) Sample. I.D. No. (and "Groundwater Technology" <br /> not on preprinted label) . . if <br /> b} Job I.D. No <br /> r� c) Date. and Time.... i <br /> _,d) -..'Type....'of .analysis requested....:.... - - <br /> e <br /> Your name'. <br /> GROUNDWATER <br /> BEITECHNOLOGY,INC. <br /> CONSULTING GROUNDWATER GEOLOGISTS <br /> S i - , <br />