supply & delivery of chemicals,reagent, glassware and other necessary accessories to extend support to nabl recognised water quality testing block level laboratoriesfor a period of one month from the date of commencement for chanchol sub district laboratoryunder malda division, public health engineering directorate, government of west bengal-- 1 standard silver nitrate 2 sodium chloride for preparation of 2000 mg/l solution 3 sodium hydroxide 1n, 2 amp 4 sulphuric acid 5 hydrochloric acid 0.1n, 500 ml 6 standard edta 7 calcium standard 1000 mg/l 8 potassium ferrocyanide crystal 9 potassium hydroxide flakes, 500 gm 10 patton and reader’s indicator, 25 gm 11 turbidity standard non ratio, 1000 ntu, certified by iso 17025 accredited test method. nist traceable, 500 ml. 12 supply certified traceable to si unit of pt-co-color units calibration standard crm 13 volumetric flask class a, certified as per iso 17025 requirement set of 2, cap : 250 ml. 14 conical flask-250 ml., borosilicate glass 15 amber reagent bottle, 100 ml. 16 volumetric flask class a, certified as per iso 17025 requirement set of 2, cap : 500 ml. 17 volumetric flask class a, certified as per iso 17025 requirement set of 2, cap : 1000 ml. 18 procurement of porcelain curcible-25 ml, set of 4 nos. 19 stirring rod, 9 x 150 mm 20 filter paper no. 542, 100 pcs/ pkt 21 acid alkali proof gloves, pk of 2 pairs 22 asbestose gloves, pk of 2 pairs 23 anti-vibration platform for analytical balance : l x w x h : 315 mm x 215 mm x 25 mm 24 supply of publication of bis for is 3025 : part no. : 4,5,8,10,11,16,21,23,40,32,46 25 safety goggle, pk of 2 nos