Hach Simplified TKN (s-TKN) TNTplus Vial Test

Simplified TKN (s-TKN) method.

Total Kjeldahl Nitrogen TNTplus chemistry and your Hach spectrophotometer are engineered to simplify water analysis for accurate results, everytime. 


  • Easy and safe handling
  • No reagent blank necessary
  • Automatic method detection
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Total Kjeldahl Nitrogen TNTplus chemistry and your Hach spectrophotometer are engineered to simplify water analysis for accurate results, everytime.

Simplified TKN (s-TKN) is method accepted for compliance reporting in many states. Please check with local regulators for acceptance in your state.

Hach Method 10242 is compliant for EPA wastewater reporting and gives three results for each test - Total Nitrogen, combined nitrate and nitrite, as well as TKN. Unique vial reagent system digests the sample at only 100 °C, increasing safety while eliminating ammonia contamination and the need to clean glassware. TNT880 has a range up to 16 mg/L TKN.

  • Digestion Required: Yes
  • EPA compliant: Yes
  • Instrument: DR3900, DR6000, DR1900, DR2800, DR3800, DR5000
  • Method: 10242
  • Method Name: Simplified TKN (s-TKN™)
  • Number of tests: 25
  • Parameter: Nitrogen, Simplified Total Kjeldahl
  • Platform: TNT plus™
  • Range: 0 - 16 mg/L N
  • Shelf Life: 17 months from production date
  • Truecal: Yes
Questions & Answers
Is the TNT880 test kit considered toxic?
The TNT880 kit is marked as hazardous. If the contents of this kit have been spilled, refer to the SDS sheets found on the Hach website for handling/disposal.
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Hach Simplified TKN (s-TKN) TNTplus Vial Test
Simplified TKN (s-TKN) TNTplus Vial Test (0-16 mg/L N), 25 Tests
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