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Sulfite
5.
Add 2 drops of
Sulfite Reagent B
(HPT 430 B).
Swirl to mix.
10 mL
9.
When the timer
beeps, wipe the prepared
sample and place it into
the cell holder.
Interferences
Sample Collection, Storage, and Preservation
Sulfite
Page 2 of 4
6.
Touch the timer icon.
Touch
.
OK
A 3-minute reaction
period will begin. Do not
disturb the cell during
this time.
Read
10.
Touch
.
Read
Results will appear
2–
in mg/L SO
.
3
Interfering Substance
Sulfide
Collect samples in clean plastic or glass bottles. Samples may be stored up to
7 days by cooling to 4 °C (39 °F) or lower. Warm to 15–25 °C (59–77 °F)
before analysis.
10 mL
7.
Wipe the blank and
place the it into the cell
holder.
Interference Levels and Treatments
Zero
8.
Touch
.
Zero
The display will show:
2–
0.00 mg/L SO
3
Greater than 5 mg/L
Sulfite_Other_Eng_Ody.fm
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