Benefits of the s-TKN Method. Simplified TKN contains everything needed to measure TKN in one box. The s-TKN Method uses TNTplus™ technology, offering safer pre-measured chemistries that work exclusively with the Hach DR Family of Spectrophotometers (DR 2800™, DR 3800™, DR 3900™, DR 5000™, and DR 6000™).
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