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Directions for Nitrate Pro Test Kit
1.
Using the syringe provided, place exactly 16 ml of the water to be tested into both of
the glass vials.
Insert one of the vials (control vial) into the outer hole of the comparator.
2.
Add 5 drops of Nitrate Pro reagent A to the second vial (Reaction vial) Close the vial
3.
with the cap and shake for 15 seconds.
4.
Add a leveled measuring spoon of Nitrate Pro Reagent B, close the vial with the cap
and shake vigorously for 60 seconds.
5.
Add a leveled measuring spoon of Nitrate Pro Reagent C, close the vial with the cap
and shake vigorously for 15 seconds.
6.
Wait 9 minutes for the color in the reaction vial to stabilize at the end point.
7.
Remove the cap from the reaction vial and shake the vial gently to release tiny air
bubbles and reagent particles that settled on the bottom. insert the vial into the center
hole of the comparator.
8.
When the end point of the test reaction has been reached look into both vials from
above and rotate the color disc until the closest color match possible is achieved
between the vials. Note: Turbidity or severe coloration of the water sample (high
organic load) may distort the colors.
9.
The nitrate level corresponding to the color selected is printed on the color disc as
indicated by the pointer on the side of the comparator body. If necessary, estimate an
intermediate value.
10. The color in the reaction vial will remain stable for 5 minutes. Do not relate to the color
in the reaction vial after this time.
High Range: For levels of nitrate above 4ppm dilute 1ml of the water to be tested with
15ml of RO water.
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