Hanna Instruments HI83300, Instruction Manual, Page: 79 / 204

79
COLOR OF W
ATER
• Fill the second cuvette (#2) up to the mark with unfiltered
sample and replace the cap. This is the apparent color.
• Filter 10 mL of sample through a filter with a 0.45 µm
membrane into the third cuvette (#3), up to the 10 mL
mark and replace the cap. This is the true color.
• Insert the apparent color cuvette (#2) into the instrument
and close the lid.
• Press Read to start the reading. The meter displays the value of apparent color in Platinum
Cobalt Units (PCU).
• Remove the apparent color cuvette(#2) from the
instrument, insert the true color cuvette (#3) into the
instrument and close the lid.
•Press Read to start the reading. The meter displays the true color in Platinum Cobalt Units
(PCU).
10 mL
#2
#3
#2
#3