34
METHOD PROCEDURES
34
34
BROMINE
• Remove the cuvette.
• Add one packet of
HI93716-0
Bromine Reagent. Replace the
plastic stopper and the cap. Shake gently for about 20 seconds to
dissolve most of the reagent.
• Insert the cuvette into the holder and close the lid.
• Press
Timer
and the display will show the countdown prior to the measurement or wait 2 minutes
and 30 seconds and press
Read
. When the timer ends the meter will perform the reading. The
instrument displays the results in
mg/L
of
bromine (Br
2
).
INTERFERENCES
Interference may be caused by:
• Chlorine, Iodine, Ozone, Oxidized forms of Chromium and Manganese
• Hardness greater than 500 mg/L CaCO
3
, to remove the interference shake the sample for
approximately 1 minute after adding the reagent
• Alkalinity greater than 300 mg/L CaCO
3
or acidity greater than 150 mg/L CaCO
3
, the color of the
sample may develop only partially or rapidly fade, to remove the interference neutralize the sample
with diluted HCl or NaOH