Phosphorus, Total HR
• Select the
Phosphorus,
TT
TT
Total High Range
method following one of the procedures described in the
“Method Selection” section (see page 15).
• Remove the cap from the vials and add exactly 2.0 mL of Sodium Hydroxide (NaOH) Solution 1,54 N
to each vial, while keeping the vials at a 45-degree angle. Replace the cap tightly and mix by
inverting the vials a couple of times.
• Remove the cap from the vials and add exactly 0.5 mL of HI 93763B-0 Molybdovanadate Reagent
to each vial, while keeping the vial at a 45-degree angle. Replace the cap tightly and mix by
inverting the vials a couple of times.
• Place the blank vial into the holder and push it completely down.
• Press
Timer and the display will show the countdown prior to the measurement and the “Reaction
Time” message. Alternatively, wait for 7 minutes and press Zero.
• The instrument will perform a zero sequence and after a few seconds the display will show “-0.0-”. Now
the meter is zeroed and ready for measurement.
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