Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.
Hach offers a continually expanding selection of laboratory supplies to cover a range of analytical testing needs. COD must-haves include industrial-strength
Mercury-free COD 2 Vials. 16 mm Test 'N Tube for all instruments except DR 900 and Pocket Colorimeter II. Low Range — 3-150 mg/L
If using High Range Plus. COD digestion reagent vials, multiply the result by. 10. For the most accurate results with samples near. 1500 or 15,000 mg/L COD,.
Hach's COD Digestion Vials (High Range) are used for determination of high range Chemical Oxygen Demand (COD) by the Reactor Digestion method.
For determination of high range Chemical Oxygen Demand (COD) by the Reactor Digestion method. US EPA approved for wastewater analysis using Hach Method 8000
