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Expert Total Kjeldahl Nitrogen test made simple.
Total Kjeldahl Nitrogen TNTplus® chemistry and your Hach spectrophotometer are engineered to simplify water analysis for accurate results.
Hach Method 10242 Revision 1.2 (Simplified Spectrometric Measurement of Total Kjeldahl Nitrogen in Water and Water) is a USEPA Equivalent Method under 40 CFR 136.6 (Method Modifications and Analytical Requirements) that is compliant for the purposes of NPDES regulatory monitoring and reporting under the Clean Water Act. Please check with your local regulator for use under NPDES discharge permit.
Hach Method 10242 provides two results, Total Nitrogen and Total Nitrate (combined Nitrate and Nitrite) that are used for the quantification of Total Kjeldahl Nitrogen. Unique vial reagent system digests the sample at 120 °C, increasing safety while eliminating ammonia contamination and the need to clean glassware. TNT880 has a range up to 16 mg/L TKN.
