bids are invited for chemicals for for brwql under mbd cwc guwahati hydrogen phosphate , potassium bi-iodate , potassium nitrate , potassium chloride solution , nitrate-n isa buffer , nitrate-n standard 1000 ppm , nitrate-n standard 100 ppm , nitrite standard solution , potassium permanganate , phenolphthalein indicator , salicylic acid , silver nitrate , sodium chloride , sodium hydroxide , sodium hexafluorosilicate , sodium iodide , sodium azide , sodium oxalate , sodium thiosulphate , sodium sulphite , sodium bisulphite , starch , sulphanilamide , sodium acetate tri- hydrate , sulphuric acid , sulphate standard solution traceable , nitric acid , icpms calibration standard 29 analytes , nitric acid wash water blank , tuning solution , standard mercury , lauryl tryptose , brilliant green broth , potassium di hydrogen phosphate , ec media , potassium dichromate crm , sodium carbonate crm , ferric chloride , reference fill solution , fluoride filling solution , nitrate filling solution , citranox acid detergent total quantity : 226491