tender for procurement of chemicds, consumables for 04 no’s labordories under jalpaiguri division phe dte.- 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 merck/himedia 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 merck/himedia/ 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: merckifisherlsigma/finar 5 ammonia buffer solution for total hardness analysis (500ml/pack) make: mercklfisherlsigma/finar 6 reagent suitable for spectrophotometric analysis of iron in potable water, range 0.005-5.00 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 buffer ph 4.01@25 deg c calibration solution calibrated against nist traceable sbs (480ml pack) suitable for inolab. make: eutechlwtwlequiv 9 buffer ph 7.00@25 deg c calibration solution calibrated against nist traceable sbs (480ml pack) suitable for inolab. make: eutechlwtwlequiv 10 buffer ph 10.01@25 deg c calibration solution calibrated against nist traceable sbs (480ml pack) suitable for inolab. make: eutechlwtwlequiv 11 eriochrome black t 12 iron standard solution 1ooo.mg/l traceable to srm from nist raceable (125 ml/pack) make: inorg venturel reagecon/mercklsigma/equiv. 13 manganese standard solution 1ooo.mg/l traceable to srm from nist raceable (125 ml/pack) make: inorg venturel reagecon/mercklsigma/equiv. 14 sterilising ether solvent (450ml/pack) 15 triethanolamine min. 99.50% for total hardness analysis (500mifpack) 500 ml pack 16 sulfuric acid n/50 solution, 500 ml 17 potassium dichromate analytical grade, 500gm for calibration of spectrophotometer 18 glass petridish 50 x 17 mm 19 tissue paper roll 20 sample collection bottle pp 250 ml (autoclavable) 21 aluminium foil paper 22 sterilised disposal sample collection container 100 ml 23 dpd tablet for residual chlorine, easily dispersible, suitable for comparometric determination, pack of 250 tabs