supply and delivery of chemicals reagent glassware and related items required for all laboratory under balurghat division phed in the district of dakshin dinajpur-1 chromogenic coliform agar, for simulteneous determination & count of escherichia coli and total coliforrns in water samples as per iso 9308-1:2014, l00 gm pack mercklhimedia 2 consurnabies for bacteriological analysis by mf technique, membrane filter- cellulose nitrate, sterile- individually packed, white membrane, gridded, 47mrn dia, 0.45 micron porosity, pack of 100 circles merckihimedia / axiva 3 consumables for bacteriological analysis by mf technique. radiation sterilie plate 15x60mm, 250 nos a pack 4 edta n!50 solution, for total hardness hardness analysis ( 500mlfpack ) make: merckifisherlsigmalfinar 5 ammonia buffer solution for total hardness analysis ( 500ml / pack ) make : mercklfisherlsigmalfinar 6 reagent suitable for spectrophotometric analysis of iron in potable water, range 0.02-3.00 mg / l soluble iron ( 1000 tests / pack ) make : merck / lovibond / palin / wtw 7 reagent suitable for spectrophotometric analysis of manganese in potable water range: 0.1-10 mg / l of manganese, ( 250tests / pack ) make: merck / lovibond / palin / wtw1 chromogenic coliform agar, for simulteneous determination & count of escherichia coli and total coliforrns in water samples as per iso 9308-1:2014, l00 gm pack mercklhimedia 2 consurnabies for bacteriological analysis by mf technique, membrane filter- cellulose nitrate, sterile- individually packed, white membrane, gridded, 47mrn dia, 0.45 micron porosity, pack of 100 circles merckihimedia / axiva 3 consumables for bacteriological analysis by mf technique. radiation sterilie plate 15x60mm, 250 nos a pack 4 edta n!50 solution, for total hardness hardness analysis ( 500mlfpack ) make: merckifisherlsigmalfinar 5 ammonia buffer solution for total hardness analysis ( 500ml / pack ) make : mercklfisherlsigmalfinar 6 reagent suitable for spectrophotometric analysis of iron in potable water, range 0.02-3.00 mg / l soluble iron ( 1000 tests / pack ) make : merck / lovibond / palin / wtw 7 reagent suitable for spectrophotometric analysis of manganese in potable water range: 0.1-10 mg / l of manganese, ( 250tests / pack ) make: merck / lovibond / palin / wtw 8 manganese standard solution traceable to srm from nist traceable ( 125 ml / pack ) make: inorg vent / reagecon / merck / sigma 9 total ionic strength buffer solution-ill for fluoride estimation soln suitable for lonometric analysis of fluoride ( 475 ml / pack ) thermo- orion / merck / carlo erba / equivalent 10 sterilising ether solvent ( biosol ) ( 450ml / pack ) 11 extran / labolene / finklin ( 5l / pack ) make: merck / fisher / finar 12 dpd tablet for residual chlorine, easily dispersible, suitable comparometric determination, pack of 250 tabs 13 reagent bottle clear glass autoclavale 250 ml 14 conical flask 100 ml 15 glass dropper with rubber tit 8 cm. with 10 cm. jet 16 pipettes graduated serological ( l0 ml ) 17 pipettes sucker ( 1 set ) 18 supply of burette glass ( 50 ml ) 19 bottle p.p ( 100 ml ) 20 rectangular cuvette 10 mm 21 rectangular cuvette 20 mm 22 bottle p.p ( 200 ml ) 23 standard volumetrict flax 100ml ( plastic ) 24 nitric acid ( 500 ml ) 25 tissue roll 26 potassium chromate analytical reagent 27 sodium chloride analytical quality 28 silver nitrate 0.02n solution , 500 ml 29 buffer ph 4.01@25 deg c calibration solution calibrated against nist traceable sbs ( 480ml pack ) suitable for inolab & ph510 / 700 ph meter. make: eutech / wtw / equiv 30 buffer ph 7.00 @25 deg c calibration solution calibrated against nist traceable sbs ( 480ml pack ) make: eutech / wtw / equiv 31 buffer ph 10.01 @25 deg c calibration solution calibrated against nist traceable sbs ( 480ml pack ) make: eutech / wtw / equiv 32 fluoride standard solution traceable to srm from nist traceable ( 500ml / pack ) make· inorganic vent / reagecon / ~erc~sigrra / equivalent 33 sulfuric acid ( h2so4 ) 34 potassium di chromate ( k2 cr2 o7 ) 35 supply, delivery demonstration of residual chlorine kit complete with comprator box with continous color scale disc for residual chlorine & total chlorine analysis range / graduation: 0 / 0.2 / 4.4 / 0.6 / 0.8 / 1.0 / 1.2 / 1.4 / 1.6 / 1.8 / 2.0 / 2.5 / 3.0 / 3.5 / 4.0 to be supplied with unbreakable cells, frosted on two sides 13.5 mm path length volume 10 ml, with lid, easily dispersible dpd tablet for residual chlorine - 530 nos & dpd tablet for total chlorine - 30 nos, tablet chusher, carrying box, operating manual. total residual chlorine test should be made at different places of west bengal as per directioin of engineer-incharge: make: lovibond / merck