LaMotte SMART Spectro Spectrophotometer - Manual (Page 95)

PROCEDURE
Use universal sample holder.
1. Press and hold ON button until spectrophotometer turns 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 OFF button to turn spectrophotometer off or press EXIT button to exit to
a previous menu or make another menu selection.
CHLORINE, BROMINE, IODINE SMART Spectro Test Procedures 2.11
Test P
rocedures