K-6923 Nitrate

K-6923 Nitrate Vacu-Vials Kit is used to determine Nitrate levels from 0-7.50 ppm.

Nitrate Information


The K-6923 Nitrate Kit was designed to accurately measure the levels of Nitrate in water from 0-7.50 ppm. K-6923 uses the Cadmium Reduction Method. Nitrate is reduced to nitrite using cadmium as the reducing agent. The resulting nitrite concentration is then determined colorimetrically. This method is applicable to drinking and surface waters, as well as domestic and industrial wastes. Nitrite will interfere with this test. Results are expressed as ppm (mg/L) NO3-N or NO3. 

Nitrate is the most completely oxidized form of nitrogen. It is formed during the final stages of biological decomposition, either in wastewater treatment facilities or in natural water supplies. Low-level nitrate concentrations may be present in natural waters. However, a Maximum Contaminant Level of 10 ppm nitrate-nitrogen has been established for drinking water by the USEPA.

 What's included:

  • 30 Ampoules
  • 30 Cadmium Foil Packs
  • 25 mL Sample Cup
  • Reaction Tube with Lid
  • Ampoule Blank
  • Instruction Manual


How to use:

  1. The Instrument must be turned on.
  2. Put the Zero ampoule into the device and cover with the light shield piece to zero out the unit. (NOTE: This must be zeroed any time the unit is turned off and turned back on)
  3. Fill Reaction Tube with the specified amount of sample water.
  4. Empty 1 Cadmium Foil Pack into reaction tube and shake vigorously for 3 minutes.
  5. Allow sample to sit undisturbed for 2 minutes.
  6. Pour 10mL of the reacted sample into the empty 25 mL sample cup.Fill the sample cup to 25ml  

  7. Snap the end of the Vacu-vial in the water on the bottom/side of the 25 mL sample cup.Snap the tip of the ampoule on the bottom and side of the sample cup
  8. Mix the contents of the ampoule by tipping back and forth a few times.Tip the vacu-vial back and forth to mix
  9. Dry the vacu-vial and wait 10 minutes for color development.Dry vacu-vial and then insert into the I-2019
  10. Place the vacu-vial ampoule into the device (flat end first) for readout. 


Nitrate Kits Instructions

Cadmium Reduction Tech Sheet

Nitrate Information


WARNING! This product can expose you to chemicals including cadmium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

More Information
Manufacturer CHEMetrics
Call For Price No
Gas Nitrate
4-20 mA Output No
Voltage Output None
Power Requirements 4 AAA Batteries
Datalogging No
Warranty 1 Year
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