Laserfiche WebLink
r3. <br /> & . Preservatives are required for some types of samples. Use <br /> specially prepared vials from GTL, 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. Always have extra vials in case of problems. <br /> For samples from dissolved gasoline sites or other samples <br /> shoudl be acidified below pH 2 with sulfuric acid. Use <br /> vials with care and keep them upright. Eye protection, foot <br /> protection, and disposable vinyl goives are required for <br /> handling. Samples designated for expedited service and <br /> analyzed within seven (7) days of sampling will be accept- <br /> able without preservation. <br /> Acid causes burns. 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 seek medical <br /> attention. Rin.-,e off <br /> handling. hands frequently with water during <br /> E For sampling chlorinated drinking water supplies for <br /> chlorinated volatiles, samples shall be preserved with <br /> sodium thiosulfate. Use vials labeled "CONTAINS THIOSULFATER. <br /> Ji No particular cautions are necessary. <br /> 7. Fill vial to overflowing with water, avoiding turbulence and <br /> bubbling as much as possible. heater should stand above lip <br /> . of vial. <br /> 4 8. u Carefull but <br /> Y quickly slip cap onto vial. Avoid d:copping <br /> the teflon disc 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 I.D. No. (and "Groundwater Technology" if <br /> not on preprinted label). <br /> b) Job I.D. No. <br /> c) Date and Time. <br /> d) Type of analysis requested. <br /> e) Your name. <br /> �k <br /> GROUNDWATER <br /> ETTECHNOLOGY.INC. <br /> CONsuLnNGGROUND AIEAGEOLorisTs <br /> � r <br />