Sulfite
Sulfite
Page 2 of 4
Sulfite_Other_Eng_Ody.fm
Interferences
Sample Collection, Storage, and Preservation
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.
5. Add 2 drops of
Sulfite Reagent B
(HPT 430 B).
Swirl to mix.
6. Touch the timer icon.
Touch
OK.
A 3-minute reaction
period will begin. Do not
disturb the cell during
this time.
7. Wipe the blank and
place the it into the cell
holder.
8. Touch Zero.
The display will show:
0.00 mg/L SO
3
2–
9. When the timer
beeps, wipe the prepared
sample and place it into
the cell holder.
10. Touch Read.
Results will appear
in mg/L SO
3
2–
.
Interfering Substance Interference Levels and Treatments
Sulfide Greater than 5 mg/L
10 mL
Zero
10 mL
Read
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