Envirochem offers a large range of colourimetric testing

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Envirochem offers a large range of colourimetric testing including ammonia, COD (chemical oxygen demand), cyanide, free and total chlorine, and more.

Ammonia is tested for largely because the amount of ammonia in waste water must fall under a certain limit for it to be disposed of safely into the environment. Most of our samples for Ammonia come from water treatment plants, companies testing their water discharge and from care homes that have their own water treatment facilities.

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Chemical Oxygen Demand (COD)

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Envirochem offers a large range of colourmetric testing. Chemical Oxygen Demand (COD) is a good initial indicator of how hazardous a liquid sample is.  COD is the total measurement of all chemicals in the water that can be oxidised. It is similar to Biological Oxygen demand because it provides an index to assess the effect of discharged waste water on the environment. It is sometimes used instead of BOD because of its shorter test time.

 

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