LaMotte NITRATE IN WATER TEST KIT SL-NCR - Manual (Page 2)

NOTES:
A.
Nitrites will cause interference in this nitrate test. If present,
determine the nitrites level separately and compensate in these test
results.
B. The best results are obtained when solution temperatures are close to
23°C.
C. Place Dispenser Cap (0692) on *Mixed Acid Reagent (V-6278).
Save this cap for refill reagents.
PRO CE DURE
1.
Fill sample bottle (0688) with sample water.
2. Fill a test tube (0106) to 2.5 mL line with water from sample bottle.
3. Attach dispenser cap to a bottle of *Mixed Acid Reagent (6278).
Dilute to 5 mL line with *Mixed Acid Reagent (6278). Cap and mix.
Wait two minutes.
4. Use the 0.1 g spoon (0699) to add one level measure of *Nitrate
Reducing Reagent (6279). Cap and invert 50-60 times in one
minute. Wait ten minutes.
5. Mix sample one time and insert test tube into Octa-Slide Viewer.
Insert Nitrate-Nitrogen Octa-Slide Bar (3413) into the Octa-Slide
Viewer (1100). Match sample color to a color standard. Record as
ppm Nitrate Nitrogen (NO
3
-N). To convert to nitrate (NO
3
),
multiply result by 4.4. Record as ppm Nitrate.
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