LaMotte SMART3 Soil Operator's Manual page 95

PROCEDURE
1. Press and hold
2. Press
3. Select All Tests (or another sequence containing 059 Manganese HR) from Testing
4. Scroll to and select 059 Manganese HR from menu.
5. Fill a clean tube (0290) to the 10 mL line with the soil extract then neutralize
6. Insert tube into chamber, close lid and select Scan Blank.
7.
8. Use the 0.15 g spoon (0727) to add one measure of *Manganese Periodate
9. At the end of the two minute waiting period, mix, insert tube into chamber, close
10. Press
MANGANESE
1.800.544.2843
until colorimeter turns on.
ENTER
to select Testing Menu.
Menu.
according to the procedure on page 84.
Remove tube from colorimeter. Use the 0.1 g spoon (0699) to add two measures of
Manganese Buff er Reagent (6310). Cap and mix until powder dissolves.
Reagent (6311). Cap and shake for one minute. An undissolved portion of the
reagent may remain in the bottom of the tube without adversely aff ecting the test
results. Wait two minutes for maximum color development. Solution will turn pink if
manganese is present.
lid and select Scan Sample. Multiply the result by 5 to determine the manganese
concentration in ppm.
to turn colorimeter off or press
make another menu selection.
Mangansese Concentration Chart
Parts Per Million
0-5 ppm
5-12 ppm
13-24 ppm
25-40 ppm
Over 40
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15
10 20
5 25
0 30
EXIT to exit to a previous menu or
Range
Low
Medium
Medium High
High
Very High
Smart3 Soil Test Procedures 9.18
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