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METHOD PROCEDURES
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32
ALK
ALINITY
• Remove the cuvette.
• Add 1mL of
HI775S
Alkalinity Reagent to the sample
using a 1 mL syringe.
• Replace the plastic stopper and the cap. Invert 5 times.
• Insert the cuvette into the holder and close the lid.
• Press
Read
to start the reading. The instrument displays the results in
mg/L calcium carbonate
(CaCO
3
).
INTERFERENCES
Interference may be caused by:
• Chlorine must be absent, to remove the interference add one drop of
HI93755-53
Chlorine Removal
Reagent to the unreacted sample
1 mL