(08) Bromine
(in absence of Chlorine)
0.00 - 9.00 mg/l (tBr₂)
Tablet
Internal Name: 08-Bromine-tab
DPD N°1 Photometer (TbsPD1)
Measurement procedure:
1 Fill 10 ml test water into a clean 24 mm cuvette.
2 Screw the lid back on the cuvette.
3 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
4 Start ZERO measurement.
5 Remove the cuvette again.
6 Unscrew the lid from the cuvette.
7 Empty the cuvette to a few drops.
8 Add 1 DPD N°1 Photometer tablet(s) to the test water in the cuvette.
9 Crush the tablet with a clean stirring rod.
10 Fill the cuvette to 10 ml with the sample water.
11 Screw the lid back on the cuvette.
12 Gently swirl the cuvette to mix the liquid well.
13 Tap TEST to perform the measurement.
14 The measured value is immediately displayed.
Notes:
Make sure no bromine escapes while preparing the sample. The measurement must be
performed directly after sampling.
Do not clean glassware and equipment with household detergents, as these could greatly
reduce the measurement result. To prevent any contamination, the cuvette, lid and stirrer
should be stored in a 0.1 % sodium hypochlorite solution for one hour. Then rinse with distilled
water, thoroughly.
Water samples with a high calcium content resp. a high conductivity will render the sample
cloudy, which is detrimental to the measurement precision. In this case use "DPD N°1 High
Calcium (HC)" reagents.
If the sample water contains more than 40 mg/l bromine, a measured value of 0 mg/l can be
displayed. In that case, a dilution is recommended.
T11/204 T11/204
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