Test Procedures
PROCEDURE
Use 10 mm square cell adapter
1. Press
ON
button to turn spectrophotometer on.
2. Scroll to and select
PROGRAMMED TESTS
.
3. Scroll to and select
ALL TESTS
(or another sequence containing
11 Bromine-UDV
) from
TESTING MENU
.
4. Scroll to and select
11 Bromine-UDV
from menu.
5. Rinse a clean vial (0156) with sample water.
6. Use the syringe (1184) to add 3mL of sample to the vial.
7.
Insert the vial into chamber, close the lid and select
SCAN BLANK
.
8. Remove the vial from the Spectro.
9. Use the syringe (1184) to add 3mL of sample to a *Free Chlorine UDV (4311).
10. Shake vigorously until powder dissolves completely.
NOTE: If powder residue remains in the bottom of the vial after inverting or air bubbles
form, invert once more and tap bottom of vial sharply once or twice to dislodge powder
and bubbles. Mix.
11. Immediately insert tube into chamber, close lid and select
SCAN SAMPLE
. Record
result in ppm bromine.
12. Press and hold
OFF
button to turn the spectrophotometer off or press
EXIT
button to
exit to a previous menu or make another menu selection.
NOTE: For best possible results, a reagent blank should be determined to account for any
contribution to the test result by the reagent system. To determine the reagent blank,
follow the above test procedure to scan a distilled or deionized water blank. Then follow
the above procedure to perform the test on a distilled or deionized water sample. This test
result is the reagent blank. Subtract the reagent blank from all subsequent test results
of unknown samples. It is necessary to determine the reagent blank only when a new lot
number of reagents is obtained.
NOTE: UDVs from opened pouches should be used promptly. Store unused vials from
opened pouches in the Foil Storage Bag (9467) to extend the shelf life of the reagent.
Generally, UDVs stored in the bag should be used within 10 days if the humidity is less than
50% and within 5 days if humidity is greater than 50%. The Foil Storage Bag contains a
desiccant pack with indicator. When the indicator in the window turns from blue to pink, the
bag should be replaced.
SMART Spectro 2 Test Procedures 05.02.16
BROMINE
, UDV
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