Silica
Silica
Page 2 of 4
Silica_PP_Low_HTB_Eng_Ody.fm
5. When the timer
beeps, add the contents of
one Citric Acid Reagent
Powder Pillow to each
sample cell. Swirl to mix.
6. Touch the timer icon.
Touch
OK.
A one-minute reaction
period will begin. The
destruction of possible
phosphate interference
occurs during this period.
7. When the timer
beeps, add the contents of
one Amino Acid F
Reagent Powder Pillow
to one of the sample cells.
Swirl to mix. This is the
prepared sample.
The sample without the
Amino Acid F Reagent is
the blank.
8. Touch the timer icon.
Touch
OK.
A two-minute reaction
period will begin.
A blue color will develop
if silica is present.
9. Wipe the cells with a
damp cloth, followed by
a dry one to remove
fingerprints and other
marks.
10. When the timer
beeps, place the blank
into the cell holder.
11. Touch Zero.
The display will show:
0.00 mg/L SiO
2
12. Place the prepared
sample into the cell
holder.
Touch
Read.
Results will appear in
mg/L SiO
2
.
10 mL
10 mL
Zero
10 mL
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