Laserfiche WebLink
FugW- 4.4 <br /> IM- <br /> Y. s <br /> M <br /> i� <br /> GT MIRO)MENTAL $-AWRATORY (GTEL) <br /> STANDARD OPERATING PROCEDURE <br /> CONCERNINGSAMPLING FOR VOLATILES IN WATER (DISSOLVED GASOLINE, <br /> SOLVENTS, .ETC.) . <br /> SOP 10 <br /> T 1. Use only vials properly washed and baked, available from <br /> GTEL or I-Chem. <br /> 2. Use clean sampling equipment. Scrub with Alconox or <br /> equivalent laboratory detergent and water followed by a <br /> thorough water rinse. Complete with a distilled water <br /> rinse. <br /> Sampling equipment which has come into contact with liquid <br /> hydrocarbons (free product) should be regarded with suspi- <br /> cion. Such equipment should have tubing and cables replaced <br /> and all resilient parts washed with laboratory detergent <br /> solution, as above. Visible deposits may have to be removed <br /> with hexane. Solvent washing should be followed be <br /> detergent washing as above. <br /> This procedure is valid for volatile organics analysis <br /> _y only. For extractable organics (for example, presticides, or <br /> base neutrals for EPA method 625) a final rinse with <br /> pesticide grade isopropyl alcohol, followed by overnight or <br /> oven drying, will be necessary. <br /> 3. Take duplicate samples for GTEL. Mark on foras as a single <br /> sample with two containers to avoid duplication of analysis. <br /> 4. Take a site blank using distilled water or known uncontami- <br /> nated source. This sample will be run ?t the discretion of <br /> the project manager. <br /> 5. Fill out labels and for.�s as much as po,�sible ahead of <br /> time. Use an indelible marker. <br /> �kut�In147F:A <br /> T►xwiiw� h� <br />