How to test Chlorine content in water

Chlorine content in water can be tested using Ortho Toluidine (OTD) solution and a Chloroscope

[Yakshith_Suthiksh]

Which Powder and which liquid is added Sir. Please tell me explain

[dr.chemist]

Please, I have O-Toluidine but its color is reddish brown, Does this mean that it can't be used to determine the chlorine in water? and it is not miscible with water (makes oil drops when adding it to water). How can I use it to determine chlorine in water?

[peterkhare]

Sir ye kharidana hai please jankari dewe

[joldapkenaresh]

How to reduce chlorine content if exceeded in clear water

[anvitmorey]

sir why orthotolidine solution is used here?

[vanibudireddi]

waht is the acceptabale % of estimation of available chlorine in industrial purpose?