How Can I Find Information on COD and International Standards for Water Quality?

AI Thread Summary
The discussion centers on a Chemistry group project focused on water quality, specifically the Chemical Oxygen Demand (COD) component. The participant seeks clarification on COD, particularly regarding its two components: concentration (mg/L) and light absorbance rate. There is a noted difficulty in finding information about the "light absorbance rate" related to COD. Additionally, the participant requests guidance on obtaining international water quality standards for COD, Biological Oxygen Demand (BOD), and Dissolved Oxygen (DO) from organizations like the UN or EU. A link to a resource for BOD testing is shared, indicating a potential starting point for further research.
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Hi everyone:
I am doing my Chemistry group project right now, it is something about the water quality. And I am in charge of the COD (Chemical oxygen demand) part. The teacher told me that COD contains two parts: concentration (mg/L)and light absorbance rate (A)...something like that (I translated it from Chinese). But I didnt found any related information about the "light absorbance rate" on the internet. Can anyone give me some information about COD?
Also, can someone tell me how can I get the international standards (or standards of other countries, or organizations such as UN or EU) of water quality (COD, BOD, DO...etc)? Thanks a lot!
 
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Wow, right above me, I just had a link "Biological oxygen demand", linking to www.polyseed.com[/url]. Now my second window has been directed to [url]http://www.interlabsupply.com/[/URL], where it says:

Welcome to InterLab Supply, your complete source for BOD testing and home of the "Original" PolySeed

Well, there ye have at least something to start with :wink:
 
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