supply of chemicals glasswares for ganga sagar water testing laboratory in the dist of south 24 parganas under alipore division phe dte in connection with ganga sagar mela 2023- 1 beaker ( 100ml ) 2 sample bottle ( pbc ) ( 200ml ) 3 conical flask ( 100 ml ) 4 sterile sample bottle ( tarsons ) ( 100ml ) 5 aluminium foil 9mt- hindalco / equivalent 6 tissue paper ( medium ) - 2x21mt 7 nitrile gloves ( 7.6 ) ( 100ps ) 8 cotton 9 burette glass ( 50ml ) class b 10 chromogenic coliform agar, for simulteneous determination & count of escherichia coli and total coliforms in water samples as per iso 9308-1:2014, 100 gm pack 11 consumables for bacteriological analysis by mf technique, membrane filter- cellulose nitrate, sterile- individually packed, white membrane, gridded, 47mm dia, 0.45 micron porosity, pack of 100 circles 12 consumables for bacteriological analysis by mf technique, radiation sterilieplate 15x60mm, 250 nos a pack 13 edta n / 50 solution, for total hardness analysis ( 500ml / pack ) 500 ml pack 14 ammonia buffer solution for total hardness analysis ( 500ml / pack ) 15 buffer ph 4.01@25 deg c calibration solution calibrated against nist traceable sbs ( 480ml pack ) suitable for inolab & ph510 / 700 ph meter. 16 buffer ph 7.00 @25 deg c calibration solution calibrated against nist traceable sbs ( 480ml pack ) 17 buffer ph 10.01 @25 deg c calibration solution calibrated against nist traceable sbs ( 480ml pack ) 18 conductivity standard 1413 us / cm @25 deg c for calibration protocol of inolab conductivity meter ( 480ml / pack ) 19 reagent suitable for spectrophotometric analysis of iron in potable water, min range 0.02-3.00 mg / l soluble iron ( 1000 tests / pack ) 20 iron standard solution 1000 mg / l traceable to srm from nist traceable ( 125 ml / pack ) 21 reagent suitable for spectrophotometric analysis of manganese in potable water min range: 0.01-0.7 mg / l of manganese, ( 250tests / pack ) 22 manganese standard solution traceable to srm from nist traceable ( 125 ml / pack ) 23 dpd tablet for residual chlorine, easily dispersible, suitable for comparometric determination, pack of 250 tabs 24 silver nitrate 0.02n solution, ( ±0.0002n ) , 500 ml 25 sterilising ether solvent ( biosol ) ( 450ml / pack ) 26 solvent for lamp. 5 lit pack