PIB 37-731 Product Improvement – TNT880 Simplified TKN (s-TKN) TNTplus Vial Test

Document ID

Document ID PIB605

Published Date

Published Date 10/19/2021
Title
PIB 37-731 Product Improvement – TNT880 Simplified TKN (s-TKN) TNTplus Vial Test
Introduction
Product Update for distribution to Global subscribers.
Applies to the Hach Lab brands.

Hach is excited to announce a product improvement for the TNTplus Vial Test Simplified TKN (s-TKN; TNT880). TNT880 does no longer require use of MicroCap C and is now digested 30 minutes at 120°C (instead of 60 minutes at 100°C) saving working steps and time.

Key Message Points
  • Improved Simplified TKN (s-TKN) Vial Test TNT880 comes without MicroCap C.
  • The TN-part of the s-TKN measurement is now digested for 30 minutes at 120°C - like the TNTplus vial tests for Total Nitrogen (TNT826 / TNT827 / TNT828).
  • No change in the Nitrate-part of the s-TKN measurement.
  • The s-TKN test is still USEPA equivalent under 40 CFR 136.6 to Hach Method 10242, Revision 1.2, July 24, 2019 as published at 40 CFR part 136.
  • Two additional digestion vials are in the package.
  • The improved test will be launched for the US and ROW in October 2021.
  • Calibration data have not changed, no spectrophotometer update is necessary.

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