LaMotte HYDROPONICS KIT 3561-01 - Manual (Page 2)

USE OF THE OCTA-SLIDE 2 VIEWER
The Octa-Slide 2 Viewer should be held so
non-direct light enters through the back of
the Viewer. Insert the reacted sample into
the top of the Viewer. Slide the Octa-Slide 2
Bar into the Viewer and match the color of
the reaction to the color standards.
DILUTION PROCEDURE
If the test result in the nitrate, phosphate or potassium test is greater than the highest
value it is necessary to perform a dilution. Use the 1.0 mL pipet (0354) and the 25 mL
graduated cylinder (0417) as follows:
AMOUNT
OF SAMPLE
DILUTE TO MULTIPLY
RESULT BY
1.0 mL 5.0 mL 5
1.0 mL 10.0 mL 10
1.0 mL 20.0 mL 20
1.0 mL 25.0 mL 25
Use deionized water from the Demineralizer Bottle for all dilutions.
pH
A pH value of 7.0 indicates a neutral solution. Values above 7.0 indicate alkaline
solutions, while values below pH 7.0 indicate acid solutions.
1. Fill a test tube (0106) to 5.0 mL line with sample solution.
2. Add 4 drops of *Wide Range Indicator (2218). Cap and mix.
3. Insert pH Wide Range Octa-Slide 2 Bar (3424-01) into Octa-Slide 2 Viewer (1101).
4. Insert test tube into the Octa-Slide 2 Viewer. Match sample color to a color
standard.
NOTE: If the pH of the sample is not between 6.2 and 6.8, it must be adjusted
to 6.5 before proceeding the with the Nitrate, Phosphorus, and Potassium tests.
If the pH is below 6.2 add *Sodium Hydroxide, 1.0N (4004), one drop at a time,
periodically checking the pH until it is brought into the range of 6.2 to 6.8. If the
pH is above 6.8, add *Hydrochloric Acid, 1.0N (6130) in the same manner.
WARNING! This set contains chemicals
that may be harmful if misued. Read
cautions on individual containers
carefully. Not to be used by children
except under adult supervision.