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Employee Training

Ana-Lab Corp. P.O. Box 9000 2600 Dudley Road Kilgore, TX 75663 Employee Training Chlorine Residual By Roy White Chlorine Residual Read and follow SOP & reference materials Follow safety plan Collect representative aliquot Protect integrity of sample Record results and conditions

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Employee Training

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  1. Ana-Lab Corp. P.O. Box 9000 2600 Dudley Road Kilgore, TX 75663 Employee Training

  2. Chlorine Residual By Roy White

  3. Chlorine Residual • Read and follow SOP & reference materials • Follow safety plan • Collect representative aliquot • Protect integrity of sample • Record results and conditions • Complete Chain of Custody

  4. Each Participant shall be able to: • Turn photometer on • Zero instrument • Prepare sample • Read chlorine concentration • Make Manganese correction • Calculate corrected chlorine concentration

  5. Thermo Orion Photometer

  6. Thermo Orion Photometer 1. Switch unit on using “power” switch

  7. Thermo Orion Photometer 2. Fill a 10 ml cell to the 10 ml line with sample Meniscus 10 ml Bottom of curved meniscus should be on the 10 ml line at eye level.

  8. Thermo Orion Photometer • Add contents of one DPD Total Chlorine Powder Pillow to the sample cell. Cap and gently shake for 20 seconds. • Wait 3 minutes. During this time period, proceed with steps 5 – 9.

  9. Thermo Orion Photometer • Fill a 10 ml sample cell to the 10 ml line with sample (blank). • Place the cap on the sample blank.

  10. Thermo Orion Photometer 7. Place the blank in the cell holder, being sure to align the marks. Align

  11. Thermo Orion Photometer 8. Press “zero/test”; The display will be “0.0.0” 0.0.0

  12. Thermo Orion Photometer • 9. Remove the cell from the cell holder

  13. Thermo Orion Photometer • 10. Within 3 minutes after the 3-minute reaction time, place the prepared sample in the cell holder.

  14. Thermo Orion Photometer • Press “zero/test” • The meter will show the results in mg/L total chlorine

  15. Record Results • Record as R1 on QC Line • Cl2 R1

  16. Thermo Orion Photometer • Manganese Correction

  17. Manganese Correction • Fill a sample cell to the 10 ml line with sample. • Add 10 drops of Phosphate Buffer • Mix and wait one minute.

  18. Manganese Correction • Add one drop of Sodium Arsenite and mix • Read the Manganese effect as in steps 3 – 11 • Subtract the results of this test from the original to obtain the corrected chlorine concentration

  19. Record Results • Record Manganese Correction as R2 on the QC line • Cl2 R1 – R2

  20. Record Results • Calculate Chlorine Residual by: • Cl2 R1 – R2 = Chlorine Residual mg/L

  21. Thermo Orion Photometer Questions? Questions? Questions? Questions?

  22. Thermo Orion Photometer Let's Roll

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