DR/2400
Chloramine (Mono)
Chloramine (Mono)_AVPP_High_MCF_Eng_Ody.fm Page 1 of 6
• For more accurate results, determine a reagent blank value for each new lot of reagent. Follow the procedure using deionized
water in place of the sample. Subtract the reagent blank value from the final results or perform a reagent blank adjust. See the
instrument manual for more information on Running a Reagent Blank.
• 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.
Chloramine (Mono)
Method 10172
Indophenol Method*
HR (0.1 to 10.0 mg/L Cl
2
)
* Patent Pending
Scope and Application: Chlorinated wastewater.
1. Touch
Hach Programs.
Select program
67 Monochlor. HR TNT.
Touch
Start.
2. Remove the cap from
one HR Monochloramine
Diluent vial. Use a glass
pipet to add 2.0 mL
sample to the vial. Re-cap
and invert several times
to mix.
3. Install the 16-mm cell
adapter. Wipe the vial
and place it into the
adapter.
Note: See Section 2.6 Sample
Cell Adapters For adapter
installation details.
4. Touch Zero.
The display will show:
0.0 mg/L Cl
2
Tips and Techniques
Test “N Tube Method 10172
Hach Programs
Zero
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