K-7503 Oxygen

*item has been discontinued*

Dissolved Oxygen Testing Visual Kit

Measure oxygen 0-2 ppm

Oxygen Information

Call For Price

2-5 business days

Why Choose Vacu-vials?

CHEMetrics Vacu-vials self-filling ampoules are a great way to test for dissolved substances in liquid. Unlike our visual test kits, the Vacu-vials test kit allows you to obtain an instrumental result using the CHEMetrics Direct-Redout Photometers or any spectrophotometer capable of accepting a 13m diameter round cell. When using equipment from another manufacturer, set the spectrophotometer to absorbance mode, select the wavelength specified by the Vacu-vials kit instructions, and follow the test procedure. The K-7503 CHEMets Instrumental Kit is visual indicator kit for measuring oxygen in water levels from 0-2 ppm.

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, Vacuvials 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
  • 25 mL Sample Cup
  • Sampling Tube
  • Adhesive mounting clamp
  • Permanent mounting clamp
  • Ampoule Blank
  • Instruction Manual


The K-7513 uses the Indigo Carmine Method for testing.  In an acidic solution, oxygen oxidizes the yellow-green colored leuco form of indigo carmine to form a highly colored blue dye. The resulting blue color is proportional to the dissolved oxygen concentration in the sample. The results are displayed on the monitor in ppm (mg/L) Oxygen present. K-7513 Vacu-vials are used with the I-2002 Dissolved Oxygen Meter which gives the digital readout of the ppm (mg/L) of oxygen.


How to use:



More CHEMetrics Kits for Oxygen

Product Number Method   Range Price
K-7553 Rhodazine D   0-1.000 ppm $32.00
K7513 Indigo Carmine   0-2.00 ppm $34.00
I2002 Indigo Carmine   0-15.0 ppm $415.00
Chemets Kits
Product Number Method MDS Range Price
K7511 Rhodazine D 2 ppb 0-20 ppb $122.00
K7540 Rhodazine D 2.5 ppb 0-40 ppb $56.00
K7599 Rhodazine D 5 ppb 0-100 ppb $50.00
K7518 Rhodazine D 5 ppb 5-180 ppb $50.00
K7501 Rhodazine D 0.025 ppm 0-1 ppm $56.00
K7512 Indigo Carmine 1 ppm 1-12 ppm $56.00



I-2002 Instructions

Safety Data Sheet

K-7513 Instructions

Oxygen Information


More Information
Manufacturer CHEMetrics
Call For Price No
Gas Oxygen (O2)
4-20 mA Output No
Voltage Output None
Power Requirements None
Datalogging No
Warranty 1 Year
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