improvement and up gradation of dwss to solan town from giri river. sh supply of chlorine gas for a period of one year at gaseous chlorination plant 10mld installed at 3.70 mld balancing reservoir at dharon ki dhar complete in all respect and all other works contingent thereto , supplying of chlorine gas refilled in empty chlorine gas cylinder (100 kgs. capacity) for a period of one year including all leads and lifts complete in all respect, certified by the petroleum & exposive safety organisation (goi) & conforming to is 3196(4) 2001 having 84 litre water capacity duly isi marked. the cylinder shall be fitted with appropriate valves isi marked confirming to is: 3224-1979. the cylinder should meet the requirement of the following tests: hydrostatic stretch at a pressure of 30 kgf/ sqm cm as required under rules 35 of thecylinder rules 2004. pnemumatic test at 7 kgf/sqm cm. bursting test at 130 kgf/sqm cm. , replacement of defunct parts of gaseous type chlorinator (if required) including entire carriage of material upto all leads and lifts as per the direction of engineer-in-charge such as:- , chlorinator regulator. , chlorinator ejector , chlorinator diaphragm. , chlorinator nrv , chlorinator glass rotameter , chlorinegas pe tubing (6 mtrs.) , repair of 3 hp electric motor, pump & starter etc. , replacement of damaged valves of chlorine gas cylender.