Chlorine demand of water determined by -
Horrock &;s water testing apparatus is designed to find out the dose of bleaching powder required for disinfection of water Contents 6 white cups One black cup with a circular mark inside 2 metal spoons 7 glass stirring rods One special pipette Two droppers Starch-iodine indicator solution Instruction folder (refer pgno:729 park 23rd edition)
Horrocks apparatus
Chloronometre
Berkefield filter
Doble Pot
Environment and health