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  1. Switch the cell to On on the main coulometer unit.
  2. Allow the cell to equilibrate for 30-45 minutes before continuing. The %T should be 29.6 and steady.
  3. Open the Coulometer software and log in.
  4. Heat the vial with the weighed standard (100% CaCO3) in the heating unit for 2-3 minutes before measuring.
  5. Attach the top of the reaction cell to the sample vial. Bubbles should appear in the pre and post scrubber traps. If not, make sure all connections are tight.
  6. Select the sample from the list you wish to measure on the Coulometer software (Figure 9).

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