procurement of chemicals glassware & consumables for sitalkuchi sub-district water testing laboratories.-1 chromogenic coliform agar, for simultaneous determination & count of escherichia 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 edta ni50 solution, for total hardness hardness analysis ( 500m1fpack ) make: merck1fisherlsigmalfinar . 5 calibration standard tb 210ir ( 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: eutechiwtw / equiv 8 buffer ph 10.01 @25 deg c calibration solution calibrated against nist traceable sbs ( 480m1 pack ) make: eutech / wtw / equiv 9 reagent suitable for spectrophotometric analysis of iron in potable water, range 0.02-3.00 mg / i soluble iron ( 1000 tests / pack ) make: merck / lovibond / palin / wtw 10 biosol ( 450 ml ) 11 extran ( 5 it ) 12 hcl ( 5 it ) for cleaning 13 tissue paper 14 alluminium foil paper 15 sample collection bottle- glass- 250 ml ( autoclavable ) 16 sample collection bottle- plastic-200 ml 17 sample collection bottle- plastic-100 ml 18 petri dish- glass- 50x17 mm 19 pipate controller- sucker 20 cleaning brush 21 nitrile gloves ( 7.6 inch ) ( 100 nos pack )