7. Removethetubefromthemeter.
Add 5 drops of DPD 1A Free
Chlorine Reagent (P-6740) and
mix.
8. Add 5 drops of *DPD 1B Free
Chlorine Reagent (P-6741). Cap
and mix.
9. Add 5 drops of *DPD 3 Total
Chlorine Reagent (P-6741). Cap
and mix.
Note: For wastewater samples, Standard Methods for the Examination of Water and
Wastewater recommends waiting 2 minutes for full color development.
10. Open the meter lid. Insert the
sample into the chamber. Align the
index notch on the positioning ring
with the index arrow on the meter.
Close lid, select *IOK to select
Scan Sample.
Total Chlorine (L)
* Scan Sample
16:02:19 01/04/05
CALIBRATION & ANALYSIS • CHLORINE 59
DPD
1B
DPD
1A
DPD
3
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