Test Procedures
PROCEDURE
Use universal sample holder.
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
50 Iodine
) from
TESTING MENU
.
4. Scroll to and select
50 Iodine
from menu.
5. Rinse a clean tube (0290) with sample water. Fill tube to the 10 mL line with
sample.
6. Insert tube into chamber, close lid and select
SCAN BLANK
.
7.
Remove tube from Spectro. Pour off all but a suffi
cient amount of sample water to
cover a tablet. Add one DPD #1 Tablet Instrument Grade (6903A). Crush tablet with
tablet crusher (0175). Add sample water until tube is fi lled to 10 mL line. Cap and
shake until tablet dissolves. Solution will turn pink if iodine is present. Wait 15 seconds.
Mix.
8. Insert tube into chamber, close lid and select
SCAN SAMPLE
. Record result.
9. Press and hold
OFF
button to turn spectrophotometer off or press
EXIT
button to exit
to a previous menu or make another menu selection.
SMART Spectro 2 Test Procedures 05.02.16
IODINE
, DPD TABLET
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