bids are invited for sulphate standard solution - sulphate standard solution (nist traceable) 1000 mg/l, 500 ml , lab chemical - lab chemical ethyl alcohol 500 ml , potassium chloride solution - potassium chloride solution, 500 ml , sodium thiosulfate pentahydrate - sodium thiosulfate pentahydrate for analysis emparta 500gm , nitrate ionic strength adjuster - nitrate ionic strength adjuster compatible to orion nitrate ise,475ml , orion tisab iii - orion tisab iii concentrated with cdta 475ml , sodium hydroxide pellets low chloride - sodium hydroxide pellets low chloride for analys emparta 500gm , bromocresol green - bromocresol green 0.04% indicator solution 125ml , nitrate standard solution - nitrate standard traceable to srm from 1000 mg/1 nb certipur packing 500 ml , ammonium heptamolybdate tetrahydrate - ammonium heptamolybdate tetrahydrate for analysi emparta 100gm , nitrate referance electrode - nitrate referance electrode filling solution( 60ml x 5 ) , sodium iodide for analysis emsure 100gm , buffer solution ph 7 500ml - buffer solution ph 7 500ml traceable to primary srm from nist/ptb , buffer solution ph 9 500ml - buffer solution ph 9 500ml traceable to primary srm from nist/ptb , curcumin for synthesis 2 g , volumetric flask 25 ml - volumetric flask b25 ml (borosil or equivalent) , bod bottle 300 ml - bod bottle 300 ml borosil or equivalent , serological pipette 10 ml - pipette serological b cl white gr 10 ml (borosil or equivalent) , burette with glass stopcock, nabl cert., 50 ml - burette with glass stopcock a capacity-50ml , china dish 50 ml , electrade conductivity tds meter - electrode for conductivity tds meter (systronics or equivalent) , reagent bottle hdpe - reagent bottle 1000ml (hdpe) nm polylab or equivalent , laboratory tray small - lab tray small 375x300x75 mm , microtips for transferpette 0.5-5ml - microtips for transferpette 0.5-5ml pack- 1000pcs , reagent bottle 125 ml hdpe - reagent bottle 125 ml (hdpe) , microtips for micropipette - mic