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9.' •.` yy� Gerry J riw �A � A w+ A i'�� �Y+� � 6C <br /> i <br /> f <br /> I <br /> 5. Preservatives are required for some types of samples. Use <br /> specially prepared `rials from GTEL, marked as indicated <br /> below, or use the appropriate field procedure (SOP 12 for <br /> acidification) . Hake note on forms that samples were { <br /> preserved. Always have extra vials in case of problems. j <br /> Samples for volatile analysis should be acidified below pH 2 <br /> with hydocloric acid. Use vials with care and keep them f <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 saiapling will be acceptable without <br /> preservation. j <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.1-6 j <br /> For sampling chlorinated drinking water supplies for E j <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 mucic as possible. Water should stand above lip <br /> w of vial. <br /> e. 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. i <br /> 4. Tighten cap securely,' invert vial and tap against hard to ' <br /> see that there are no bubbles inside. <br /> 10. Label vial using indelible ink as follows: I <br /> i <br /> a) Sample I.D. No. <br /> b) Job I.D. No. <br /> c) Date and Time. <br /> d) Type of analysis requested. j <br /> e) Your name. <br /> �II <br /> tf � <br /> F <br /> Gt;ut•�uaw�:� I �� <br /> i <br /> r <br /> i <br />