Laserfiche WebLink
�°�`t`�.•- 'VQ0.- L � ,'ST - rj r. � �_'� �' h� <br /> Ga EYVIR0yMZH:AL LABORA':OR MEL) <br /> STANDARD OPMRATING PROC"UT <br /> CONCSRNINC SAI+ LING FOR VOLATILES IN NATER (DISSOLVPD GASOLINZ, <br /> SOLVENTS, ETC. ) . <br /> SOP 1© <br /> l. " Use only vials properly washed and baked, available f_cm <br /> GTFL or I-Chem. <br /> 2. Use clean sampling equipment. Scrub with Alccnox 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 pars washed with laboratory detergent <br /> solution, as above. Visible deposits may have to he removed <br /> with hexane. Solvent washing should he fcllowed be <br /> detergent washing as above. <br /> This _procedure is valid for volatile organics analysis <br /> only. For extractable organics (for example, pesticides, or <br /> base neutrals for EPA method 625) a final rinse with <br /> pesticide grade iscpropyl alcohol, followed by overnight o: <br /> over drying, will be necessary. <br /> 3. Take duplicate samples for GTEL. Mark on forms as a single <br /> sample with two containers to avoid duplication oz analysis. <br /> 4. Take a site blank using distilled water or known uncontami- <br /> nated source. This sample will be run at the discretion of <br /> the project manager. <br /> 5. Fill out labels and forms as much as pcssible ahead of <br /> time. Use an jnde1ible marker. <br />