bids are invited for chemicals - sodium thiosulfate pentahydrate (500 gm) , chemicals - manganese (ii) sulfate monohydrate (500 gm) , chemicals - sulfuric acid about 98% (500 ml) , chemicals - potassium iodide (250 gm) , chemicals - sodium azide (100 gm) , chemicals - potassium dichromate solution (500 gm) , chemicals - starch solution (500 gm) , chemicals - sodium hydroxide pellets (low chloride) gr (500 gm) , chemicals - buffer solution ph 4.0 (500 ml) , chemicals - buffer solution ph 7.0 (500 ml) , chemicals - buffer solution ph 9.0 (500 ml) , chemicals - potassium chloride solution for ec (480 ml) , chemicals - silica crystal (500 gm) , glasswares - conical flask (500 ml) , glasswares - glass stirring rod , glasswares - pipette with bulb (1 ml) , glasswares - pipette with bulb (5 ml) , glasswares - bod sampling bottle (300 ml glass) , glasswares - micro biological sample bottle (125 ml glass) , glasswares - reagent bottle for pesticide sample (1000 ml glass) , glasswares - measuring cylinder (1 ltr) , glasswares - measuring cylinder (500 ml) , glasswares - vol flask (250 ml) , glasswares - glass filter funnel short stem (75 mm) , glasswares - burette for titration (100 ml) , glasswares - beaker (25 ml) , glasswares - beaker (50 ml) , glasswares - beaker (100 ml) , glasswares - rainfall measuring cylinder , lab related - filter paper 185 mm dia (whatman) , lab related - reagent bottle for trace & toxic sample (125 ml plastic) , lab related - narrow mouth wash bottle, ldpe with pp closure , lab related - wide mouth wash bottle, ldpe with pp closure and draw , lab related - bubbler (big) for pipette , lab related - bubbler (small) for pipette , lab related - silt bowl , lab related - sieve (100 bss) , lab related - sieve (200 bss) , lab related - tissue roll , lab related - hand gloves for lab purpose (100 pc / pack) , lab related - tong (12 inch) for use , lab related - enamelled bucket with cover (10-12 l) , lab related - spatula (6 inch) for chemicals for use ,