K-7518 Oxygen

Dissolved Oxygen Testing Visual Kit

Measure oxygen 5-180 ppb

Replacement ampoules for the K-7518 Test Kit can be found here.

Oxygen Information

2-5 business days

Why Choose CHEMetrics Chemets kits?

CHEMetrics Chemets self-filing reagent ampoules are a great way to test for dissolved substances in liquids. These visual test kits allow you to obtain results by measuring the color of the sample according to the color comparators provided with the kit. This unique method allows you to attain results quickly and accurately with minimal contact with potentially hazardous materials.

Safe and Reliable Results:

While traditional methods often require multiple steps and thorough preparation, these test kits allow you to obtain dependable results with a few simple steps. By simplifying the testing method, Chemets test kits reduce the potential for operator error. Additionally, each of the ampoules contained in the test kits is vacuum sealed which helps eliminate the problem of obtaining inaccurate results from stale or unstable reagents. These reagents are stored right in the tip of each ampoule and sealed in glass, thereby minimizing direct contact with the chemicals.

What's Included:

     -30 self-filling Ampoules


     -adhesive mounting clamp

     -permanent mounting clamp

     -sampling tube

     -1 25 mL Sample Cup

     -Instruction Manual



The K-7518 CHEMets Visual Kit is visual indicator kit for measuring oxygen in water levels from 5-180 ppb.  This device uses the Rhodazine D Method for testing. The Rhodazine D compound in its reduced form reacts with dissolved oxygen to form a bright pink reaction product. The method is not subject to salinity or dissolved gas interferences. Oxidizing agents, including benzoquinone, can cause high results. Reducing agents such as hydrazine and sulfite do not interfere. 


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


More CHEMetrics Kits for Oxygen:

Product Number Method   Range
K-7553 Rhodazine D   0-1.000 ppm
K7503 Indigo Carmine   0-2.00 ppm
K7513 Indigo Carmine   0-15.0 ppm
I2002 Indigo Carmine   0-15.0 ppm
Chemets Kits
Product Number Method MDS Range
K7511 Rhodazine D 2 ppb 0-20 ppb
K7540 Rhodazine D 2.5 ppb 0-40 ppb
K7599 Rhodazine D 5 ppb 0-100 ppb
K7518 Rhodazine D 5 ppb 5-180 ppb
K7501 Rhodazine D 0.025 ppm 0-1 ppm
K7512 Indigo Carmine 1 ppm 1-12 ppm



K-7518/R7518 Instructions

Safety Data Sheet

K-7518 Tech Sheet

Dissolved Oxygen Methods

Oxygen Information

More Information
Manufacturer CHEMetrics
Quickbooks Stock Level 0.000000
Call For Price No
Gas Oxygen (O2)
4-20 mA Output No
Voltage Output None
Power Requirements None
Datalogging No
Warranty 1 Year
Range 5-180 ppb
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