Hach COD in Salt/Seawater TNTplus Vial Tests

For photometric determination of low range COD by the reactor digestion method.


  • Easy and safe handling
  • No reagent blank necessary
  • Automatic method detection
Stock Drop Ships From Manufacturer  

For saline COD samples with Chloride concentrations up to 20,000 mg/L Cl-1 COD

For photometric determination of low range COD by the reactor digestion method.

High Chloride concentrations usually interfere COD testing and lead to a high bias. Samples with low COD cannot simply be diluted since the COD detection limit is crucial.

TNT815 is a safe, reliable and very easy to use method for the photometric detection of low range COD in saltwater samples, e.g. in seawater.

The Direct Read Technology will provide your COD result to the nearest mg/L! No more cleaning glassware and dealing with large amounts of hazardous reagents and waste.

  • Digestion Required: Yes
  • Instrument: DR3900, DR6000, DR1900
  • Method: 10299
  • Method Name: Reactor Digestion
  • Number of tests: 25
  • Parameter:COD (for samples up to 20000 mg/L Chloride)
  • Platform: TNT plus™
  • Range: 7 - 70 mg/L COD
  • Shelf Life: 12 months from production date
  • Storage Conditions: 15 - 25 °C (protect from light)
Questions & Answers
What size vials are used for the Hach TNT chemistry kits?
The standard TNT kits are 16mm vials and the TNTplus kits are 13mm.
Did you find what you were looking for?

Select Options

  Products 0 Item Selected
Part #
Hach COD in Salt/Seawater TNTplus Vial Tests
COD in salt-/seawater - TNTplus Vial Test, LR (7 - 70 mg/L COD), 25 Tests
Drop Ships From Manufacturer  
Hach COD in Salt/Seawater TNTplus Vial Tests
COD in salt-/seawater - TNTplus Vial Test, HR (70 - 700 mg/L COD), 25 Tests
Drop Ships From Manufacturer  
Notice: At least 1 product is not available to purchase online
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

Thin Ice: Year-Long Monitoring in Missouri Reservoirs

The value of multi-lake studies is well understood by international organizations like the Global Lake Ecological Observatory Network (GLEON) and the scientists who work tirelessly to provide data to the larger network. Rebecca North, an associate professor at the University of Missouri-Columbia , is one of many researchers involved in multi-lake research initiatives and conducting research locally in her home state. Having been born and raised on the shore of Lake Ontario, North grew up in a community that revolved around water. She also saw firsthand one of the worst water quality bodies of the world, the Bay of Quinte, decline throughout her lifetime.

Read More

Duality of Science: The Importance of Science Communication for Promoting Change

It is no secret that in today's world, most scientists do not stick exclusively to science–they must be educators, communicators, and advocates. The looming threats facing the planet's climate and the growing distrust in science by the public have forced scientists to expand and improve their capacity for science communication to the world.  From repeatedly testifying before the U.S. Congress to winning an Emmy as the Chief Scientific Advisor for an award-winning nature documentary, marine ecologist James W. Porter has been thrust into the public eye.

Read More

Thin Ice: Monitoring Winter Lake Dynamics at Mohonk Lake

Historically, water quality monitoring during the winter has been difficult and often avoided altogether—however, monitoring throughout the year can highlight the influence of various environmental stressors and track the changes systems undergo during the winter. In particular, long-term monitoring efforts in systems like Mohonk Lake can underline the effects of climate change and acid rain. David Richardson, a professor of biology at the  State University of New York (SUNY) at New Paltz , spends his time outside of the classroom monitoring the nearby watersheds. After getting his engineering undergraduate degree, Richardson realized he wasn't interested in the typical job offerings and applied to an ecological science graduate program at the University of Maryland.

Read More