Use the COD chemistries appropriate for your instrument to help ensure optimal results.
All TNTplus reagents work with Hach’s DR 6000, DR 3800, and DR 3900 Spectrophotometers to simplify analysis, minimize error, eliminate chemical exposure and save time.
COD TNTplus (13 mm)
The following four chemistries contain mercury. Dispose of according to local, state and federal regulations.
Mercury-free COD TNTplus (13 mm)
A greener choice without the hassle of mercury disposal.
COD Digestion Vials
Minimize handling of corrosive and toxic chemicals and eliminate pipetting hazardous reagents. 16 mm Test ’N Tube for Hach DR 6000, DR 3800, and DR 3900 Spectrophotometers.
Mercury-free COD 2 Vials
16 mm Test ’N Tube for all instruments except DR/800 series, DR 900, and Pocket Colorimeter II.
COD Manganese III-Method 10067
16 mm for all instruments except Pocket Colorimeter II.