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METHOD PROCEDURE
• Insert the cuvette into the holder and ensure
that the notch on the cap is positioned securely
in the groove.
• Press
Read
to start the reading. The instrument displays the results in
mg/L
of
nickel (Ni).
Note:
A temperature above 30
°
C may cause turbidity. In this case, add 2 to 3
drops of
HI93703-51
Dispersing Agent to each cuvette and swirl until turbidity is
removed before zeroing the meter and reading the sample.
INTERFERENCES
Interference may be caused by:
• Chloride above 8000 mg/L
• Sodium above 5000 mg/L
• Calcium above 1000 mg/L CaCO
3
• Potassium above 500 mg/L
• Magnesium above 400 mg/L
• Molybdenum above 60 mg/L
• Chromium(VI) above 40 mg/L
• Aluminum above 32 mg/L
• Zinc above 30 mg/L
• Manganese above 25 mg/L
• Cadmium, Chromium(III), Fluoride, Lead above 20 mg/L
• Copper above 15 mg/L
• Iron (Ferric) above 10 mg/L
• Cobalt, Iron (Ferrous) must not be present
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