DR/2400
Chlorine Dioxide
ChlorineDio_None_High_DRM_Eng_Ody.fm Page 1 of 4
f
• Analyze samples immediately because chlorine dioxide is unstable and volatile. See Interferences.
• Wipe the outside of sample cells before each insertion into the instrument cell holder. Use a damp towel followed by a dry one to
remove fingerprints or other marks.
Chlorine Dioxide
Method 8138
Direct Reading Method
HR (5 to 1000 mg/L)
Scope and Application: For water and wastewater
1. Touch
Hach Programs.
Select program
75 Chlor Diox HR.
Touch
Start.
2. Fill a round sample
cell to the 10-mL mark
with deionized water.
(This is the blank.)
3. Wipe the blank and
place it into the cell
holder.
4. Touch Zero.
The display will show:
0 mg/L ClO
2
5. Fill another sample
cell to the 10-mL mark
with sample. (This is the
prepared sample.)
6. Wipe the prepared
sample and place it into
the cell holder.
7. Touch Read.
Results will appear in
mg/L ClO
2
.
Tips and Techniques
10 mL
Method 8138
Hach Programs
10 mL
Zero
10 mL
Read
To Next Page
Loading...
