Sulfate
Sulfate
Sulfate_AVPP_Other_SV4_Eng_Ody.fm Page 3 of 6
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 room temperature
before analysis.
5. Wipe off any liquid or
fingerprints from the
blank and the ampule.
6. Touch the timer icon.
Touch
OK.
A five-minute reaction
period will begin. Do not
disturb the cell during this
time.
7. When the timer
beeps, place the blank
into the cell holder.
8. Touch Zero.
The display will show:
0 mg/L SO
4
2–
9. Within five minutes
after the timer beeps,
place the ampule into the
cell holder.
10. Touch Read.
Results will appear in
mg/L SO
4
2–
.
Interfering Substance Interference Levels and Treatments
Calcium Greater than 20,000 mg/L as CaCO
3
Chloride Greater than 40,000 mg/L as Cl
Magnesium Greater than 10,000 mg/L as CaCO
3
Silica Greater than 500 mg/L as SiO
2
10 m L
10 mL
Zero
Read
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