[chlorination plant for water. supply , testing & commissionin of microproccesor controlled on-line high precision bacteriological treatmen system comprising of followin accessories ncludingtheir installation etc complete ) chemical tank of usable capacity of 100 ltr with loose lid.the tank should be resistant to solution i) high precision sustem of capacity 0-50 lph vith 0-100 percent capacity adjustment with stroke length against a maximum back-pressure of 8 kg/sq.cm coupled with suitable