Lamotte SMART3 Colorimeter User Manual Page 278

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PROCEDURE
1. Press and hold until colorimeter turns on.
2. Press
ENTER
to select TESTING MENU.
3. Select ALL TESTS (or another sequence containing 089 Sulfate HR) from
TESTING MENU.
4. Scroll to and select 089 Sulfate HR from menu.
5. Rinse a clean tube (0290) with sample water. Fill to the 10 mL line with sample.
6. Insert tube into chamber, close lid and select SCAN BLANK.
7. Remove tube from colorimeter. Use the 0.1 g spoon (0699) to add one
measure of *Sulfate Reagent (V-6277). Cap and shake until powder dissolves.
A white precipitate will develop if sulfates are present. Wait 5 minutes.
8. Mix tube again. Insert tube into chamber, close lid and select SCAN SAMPLE.
Record result.
9. Press
to turn colorimeter off or press
EXIT
to exit to a previous menu or
make another menu selection.
NOTE: If the sulfate concentration of the test sample is greater than 100 ppm,
it is recommended that a dilution be made with deionized water and the results
multiplied by the dilution factor.
A white lm is deposited on the inside of test tubes as a result of the sulfate test.
Thoroughly clean and rinse test tubes after each test.
For the most accurate results, samples and reactions should be at 25±4°C.
SULFATE, High Range SMART3 Test Procedures 11.10
Test Procedures
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