supply of chemical, certified reference material, glassware and instrument for different water testing laboratories under nadia division, phe dte.-chloroform analytical quality, dry solvent, water content maximum 0.01% max ( 500ml / pack ) 2 tin ( ii ) chloride dihydrate analytical quality solubility :10% solution in dil. hcl should be clear & assay:min. 99.00% , ( 100gm / pack ) 3 hydrochloric acid min: 36.5%, analytical quality & acs grade, arsenic content: 0.01 ppm max. ( 500ml / pack ) make: merck / fisher / sigma / finar 4 iron standard solution 1000 mg / l traceable to srm from nist traceable ( 125 ml / pack ) 5 potassium iodide analytical quality ( 100gm / pack ) assay: min. 99.8%, make: merck / fisher / sigma / finar 6 silver diethyl -dithio- carbamate for analysis, ( 5 gmpack ) 7 zinc fillings for arsenic test, ( 500 gm pack ) 8 reagent suitable for spectrophotometric analysis of iron in potable watermin range 0.02-3.00 mg / lsolible iron ( 1000 test / pack ) 9 manganese reagent , range 0.010-10.0 mg / l mn ( 250 test pack ) 10 arsenic standard solution traceable to srm 1000 mg / l as, nist traceable ( 125 ml / pack ) 11 turbidity standard solution for tb 210 ir, make lovibond 12 supply of turbidity standard solution for tq iiooirmake: merck 13 turbidity standard non ratio, 1000 ntu, certified by iso 17025 accredited test method. nist traceable 14 ph buffer- 25c: clear colourless ph buffer solutions tested at 25c and certified by reageocons iso 17025 accrediated test method , nist traceable, ph: 10.00+- 0.01 @ 25c in 500 ml 15 ph buffer- 25c: clear colourless ph buffer solutions tested at 25c and certified by reageocons iso 17025 accrediated test method , nist traceable, ph: 4.00+- 0.01 @ 25c in 500 ml 16 ph buffer- 25c: clear colourless ph buffer solutions tested at 25c and certified by reageocons iso 17025 accrediated test method , nist traceable, ph: 7.00+- 0.01 @ 25c in 500 ml 17 edtan / 50 solution for total hardness analysis ( 500ml / pack ) 500 ml pack 18 ammonia buffer solution for total hardness analysis ( 500 ml / pack ) , make:merck / fisher / sigma / finar 19 chromogenic coliform agar for simuleteneous determination & count of escherichia coli & total coliform in water sample as per iso 9308-1:2014 100 gm pack 20 consumable bacteriological analysis by mf technique. rediation sterilie plate 15 x 60 mm, 250 nos pack 21 consumable for bacteriological analysis by mf technique, membrane filter- cellulose nitrate sterilie- individually packed, white membrane , gridded, 47 mm dia, 0.45 micron porosity, pack of 100 circles merck / himedia / axiva. 22 tissue paper rolls ( medium ) - ( 2x21 mt ) roll 23 aluminium tray with handles 350 mm x 350 mm 24 extran / labolene / finklin ( 5l / pack ) make: merck / fisher / finar 25 arsine generator 100 ml complete with glass wool adaptor, absorber tube for arsenic testing & complete with 5 ml volumetric apparatus, borosilicate glass & with all matching standard joints, complete set 26 ldpe container for sample collection , 100 ml 27 ldpe container for sample collection , 200 ml 28 ldpe container for sample collection , 500 ml 29 triethanolamine min.99.50% for total hardness analysis ( 500 ml / pack ) make:merck / fisher / sigma / finar 30 sterilising ether solvent ( biosol ) ( 450ml / pack ) 31 solvent for lamp. 5 lit pack 32 dropper, 33 micro pippet controler upto 100 ml 34 lab slipper assorted pair 35 wash bottle ( pp ) , ( 500ml ) 36 rectangular cuvet glassl ( 20 mm ) ( set ) 37 pipette sucker pp 38 sterile sample bottle ( tarsons ) ( 100ml )