procurement of chemicals, glassware and laboratory items for mbr works , starch1 bottle 500 gm ar grade , filter paper no 40(ashless) dia12.5cm , 100 circles/box , tartaric acid lr grade, 500 gm pack , beakerlow form with spout 1000mlfor strong acid fuming , lead sheet chemically pure-99.99 %,agless than 10 ppm with certificate , size 0.5 meter width x1 meter length x 1 mm thickness , perchloric acid ar grade 60-62% , chloride -< 1.0 ppm, silver- <1.0 ppm , slica crucibledia-3(75mm approx) 50 ml capacity, resistant to heat of 900 degree. , volumetric flask glass 50 ml, class a with inter changeable stopper , watch glass 5 , copper standard solution 1000 ppm 500 ml for aas use with certificate and validity minimum of 2 years up to dec 2024 , silver standard solution 1000 ppm 100 ml for aas use with certificate and validity minimum of 2 years upto dec 2024 , nitrile hand gloves ,1number equal to 1 pkt (50 pair in 1 pkt ).