COD TESTING with the
The Analyst Model 975MP,
Tube Adapter Model 975-TA,COD Reactor 		 
The Mini Analyst 942-061 Mid Range COD Tester
Orbeco-Hellige’s micro-COD Method, when performed with The Analyst or The Mini Analyst, offers low-cost, simple Chemical Oxygen Demand testing fully compatible with USEPA 410.4 and Standard Methods 5220.

Uses convenient 16mm diameter screw-cap tubes containing a specific oxidizing agent. The tubes, containing reagents and samples, are heated with a convenient COD reactor (see below) at 150°C for 2 hours (or less under certain conditions) and then are inserted into the Analyst or the Mini Analyst for a direct test reading. The 2 hour time period is mandatory for EPA approved methods, but COD readings for non-reporting purposes may be obtained in as little as 15 minutes for readily oxidized wastes.		  

The Chemical Oxygen Demand (COD) test is widely used as a measure of organic cantamination by determing the quantity of oxygen required for oxidation of reduced species including organic matter, in a water sample using a specific oxidizing agent, temperature and time reduction. COD testing is more reliable and is preferred to BOD testing as test results are more reproducible and are ready in two hours (or less) rather than 5 days. In addition, COD testing is a better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. COD testing affords rapid response to changing conditions before critical problems develop.

    Features of the Orbeco-Hellige micro-COD Method
  • Up to 75% savings over other methods.
  • Full compatibility with EPA 410.4 and Standard Methods 5220.
  • Mercury-free reagents.
  • Superior optical quality glassware for more consistent results.
  • Lower waste disposal cost

COD REACTOR
COD REACTORS
COD Reactors Hold up to 15 or 30 reagent tubes (16mm) for digestion at 150°C. Compact and solidly built, the units are factory set to the correct temperature. Units include a chemical-resistant safety shield and a thermometer. 		 
  COD Reactors with tube capacities listed below, each complete with safety shiled and thermometer. For 16mm diameter tubes:

  • B-300   15 tubes capacity, for 110v 50/60HZ
  • B-301   30 tubes capacity, for 110v 50/60HZ
  • B-300E   15 tubes capacity, for 220v 50/60HZ
  • B-301E   30 tubes capacity, for 220v 50/60HZ
For COD Test Accessories Ordering Information
COD TUBES
COD TUBES Standard tubes meet the official requirements of USEPA. They contain enough mercury to compensate for chloride concentrations as high as 2000 mg/L. Mercury-free tubes, although not USEPA approved, avoid the trouble of disposal. Each package contains 50 screw-cap 16mm diameter tubes with reagent.
    Standard COD tubes, 50 per package
  • 975-60   Low Range, 5-150 mg/L, sensitivity 1.0 mg/L
  • 975-61   Mid Range, 20-900 mg/L, sensitivity 15 mg/L
  • 975-62   High Range, 100-4500 mg/L, sensitivity 60 mg/L
    Mercury-Free COD tubes, 50 per package
  • 975-60MF   Low Range, 5-150 mg/L, sensitivity 1.0 mg/L
  • 975-61MF   Mid Range, 20-900 mg/L, sensitivity 15 mg/L

For COD Test Accessories Ordering Information
 


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