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Acid causes burns Glasses or goggles (not contact lenses) are necessary for protection of the eyes Flush eyes with water for 15 minutes if contact occurs and seek medical attention Rinse off hands frequently with water during handling ' For sampling chlorinated drinking water supplies for chlorinated volatiles, samples shall be preserved with sodium thiosulfate use vials labeled "CONTAINS THIOSULFATE" No ' particular cautions are necessary ' 7 Fill vial to overflowing with water, avoiding turbulence and bubbling as much as possible Water should stand above lip of vial ' 8 Carefully but quickly slip cap onto vial Avoid dropping the teflon septum from cap by not inverting cap until in contact with vial Disc should have teflon face toward the water Also ' avoid touching white teflon face with dirty fingers ' 9 Tighten cap securely, invert vial and tap against hand to see that there are no bubbles inside 10 Label vial using indelible ink as follows a) Sample I D No b) Job I D No ' c) Date and Time d) Type of analysis requested e) Your name 11 Unless the fabric type label is used, place scotch tape over the label to preserve its integrity I12 For Cham of Custody reasons, samples vial should be wrapped end-for-end with scotch tape or evidence tape and signed with indelible ink where the end of the tape seals on itself The septum needs to be covered I13 Chill samples immediately Samples to be stored should be kept at 4°C (39°F) Samples received at the laboratory above 10°C (as measured at glass surface by a thermocouple I probe), after overnight shipping will be considered substandard, so use a high quality cooler with sufficient ice or freezer packs (Coolers are available from GTEL ) 14 Fill out Cham of Custody and Analysis Request form (See Chain of Custody Procedures SOP 11 ) IL GROUNDWATER TECHNOLOGY, INC I