methods of measuring free chlorine

barry bd100 at
Wed Jan 10 11:47:06 EST 1996

I'm involved in a project looking at the effect of various biocides on 
bacterial biofilms. I want to look at the effect of free chlorine in this 
context. Can anyone suggest a method of measuring free chlorine in water, 
preferably one which doesn-t involve buying some expensive kit.
Thanks in advance

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