Hach DR2400 - Page 166

Chlorine, Free
Chlorine, Free
Page 2 of 6
ChlorineFre_AVPP_Other_DPD_Eng_Ody.fm
5. Fill a second round
cell with 10 mL of
sample.
6. Add the contents of
one DPD Free Chlorine
Powder Pillow to the
sample cell. (This is the
prepared sample).
Swirl the sample cell for
20 seconds to mix.
Proceed to step 7
immediately.
7. Within one minute of
adding the reagent, place
the prepared sample into
the cell holder.
8. Touch Read.
Results will appear in
mg/L Cl
2
.
1. Touch
Hach Programs.
Select program
85 Chlor. F & T AV.
Touch
Start.
2. Fill a round sample
cell with 10-mL of
sample. (This is the
blank.)
Note: Collect at least 40 mL
of sample in a 50-mL beaker.
3. Wipe the blank and
place it into the cell
holder.
4. Touch Zero.
The display will show:
0.00 mg/L Cl
2
10 mL
Read
AccuVac
®
Ampul Method 8021
Hach Programs
10 mL
10 mL
Zero