corrigendum - supply of chemical for water purification plant of water supply installation at af station jodhpur:-1 supply only chemical for water purification of raw water white free flowing, in granular form, suitable for drinking water in 45 kgs packing calcium hypochlorite having 60% to 70% availbale chlorine, brand:- puri chlor manufactured by sree rayalaseema hi strength hypo ltd or equivalent of altoch-gp declibac technologies ( p ) ltd or any other make as approved by ge. nnote :- n ( a ) supply of goods will be in an airtight sealed container. n ( b ) the approved chemical should have test certificate from govt of india ( all india hygeine & public health dept. ) n ( c ) the chemical supplied by the contractor must be procured from the original manufacturer only duly mentioned in the tender schedule and he is bound to produce the test certificate duly certified by authenticated govt labouratory as per is specification 10500:1991. n ( d ) mercury an other heavy metal contaminants bdl ( below ductable limit ) the chlorination chemical must have certain appropriate quantities of dispersants / corrossion inhibotors to prevent encurst action / sealing in distribution system. 2 supply of sodium corbonate ( soda ash-dense ) , industrial chemical net wt, 50 kg best quality, ds / 29 / 14. make - nirma or any product as approved by ge. 3 supply of bleaching powder ( 25 kg bag best quality ) . as per is-1065 ( latest edition ) make kci / shriram ( seal ) / dcm ( shriram ) . as approved by ge.