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I <br /> I . preservatives are required for some types of samples . Use 6. <br /> specially prepared vials from GTEL, marked as indicated <br />' below, or use the appropriate field procedure (SOP 12 for <br /> acidification) . Make note on forms that samples were <br /> preserved. Allways 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 then, <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 /> I preservation. <br /> Acid causes burns. Glasses or goggles (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 /> 8 . 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 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 /> 10. Label vial using indelible ink as follows : <br /> a) Sample Y .D. No. <br />' b) Job I .D. No. <br /> C) Date and Time . <br /> d) Type of analysis requested. <br />' e) Your name . <br /> I <br /> „O 1�, <br />