procurement of chemicals glassware & consumables for mathabhanga sub-district water testing laboratories.-1 chromogenic coliform agar. for simultaneous determination & count of eschenchia coli and total coliforrns in water samples as per iso 9308-1:2014, 100gm pack mercklhimedia 2 consumables 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 mercklhimedia / axiva 3 consumables for bacteriological analysis by mf technique radiation sterilie plate 15x6omm. 250 nos a pack 4 eriochrome black t indicator for total hardness analysis ( 25gmfpack ) ( 25gmfpack ) make: mercklfisherlsigmalfinar 5 calibration standard tb 2101r ( lovibond ) 6 buffer ph 4.01@25 deg c calibration solution calibrated against nist traceable sbs ( 480m1 pack ) suitable for inolab & ph510 / 700 ph meter make: eutech / wtw / equiv 7 buffer ph 7.00 @25 deg c calibration solution calibrated against nist traceable sbs ( 480m1 pack ) make: eutech / wtw / equiv 8 buffer ph 10.01 @25 deg c calibration solution calibrated against nist traceable sbs ( 480m1 pack ) make: eutechiwtw / equiv 9 reagent suitable for spectrophotometric analysis of iron in potable water. range 0.02-3.00 mg / 1 soluble iron ( 1000 tests / pack ) make: merck / lovibond / palin / vvtw 10 iron standard solution 1000 mg / i srm from nist traceable ( 125 ml ) 11 reagent suitable for spectrophotometric analysis of manganese in potable water range: 0.1-10 mg / i of manganese, ( 250tests / pack ) make:merck / lovibond / palinnvtw 12 manganese standard solution traceable to srm from nist traceable ( 125 ml / pack ) make: lnorg vent / reagecon / merck / sigma 13 biosol ( 450 ml ) 14 extran ( 5 it ) 15 hcl ( 5 it ) for cleaning 16 cotton 17 tissue paper 18 alluminium foil paper 19 ph paper 2-10.5 20 sample collection bottle- glass- 250 ml ( autoclavable ) 21 sample collection bottle- plastic-200 ml 22 sample collection bottle- plastic-100 ml 23 conical flask ( 1000 ml ) 24 conical flask ( 250 ml ) 25 conical flask ( 100 ml ) 26 beaker. low form . graduated-glass ( 100 ml ) ) ml ) 27 beaker. low form . graduated-glass ( 500 ml ) 28 cell for spectrophotometer ( 20m22 ) 29 cell for spectrophotometer ( 10 mm ) 30 volumetric flask ( 50 ml ) - glass 31 volumetric flask ( 100 ml ) - glass 32 volumetric flask ( 500 ml ) - glass 33 pipette — glass ( 25 ml, ) 34 pipette — glass ( 10 ml, ) 35 pipette — glass ( 5 ml, ) 36 pipette — glass ( 1 ml, ) 37 glass rod 38 spirit lamp 39 ice box ( big size ) 40 ice box ( small size ) 41 spatula 42 plastic dropper 43 tongs 44 aspirator bottle 45 mask n-95 46 pipate controller- sucker 47 laboratory safety gogals 48 laboratory cap 49 alluminium tray 50 cleaning brush 51 nitrite gloves ( 7.6 inch ) ( 100 nos pack ) 52 duster 53 lab shoe ( free size ) 54 pipette stand 55 hot resistance gloves ( pair )