WBPHED/EE/BD/NIeQ_02 of 2023-24

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

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

Consumables for Bacteriological analysis by MF technique. Radiation Sterilie Plate 15X60mm, 250 nos a pack

EDTA N!50 Solution, for Total Hardness Hardness analysis (500ml/PACK) Make: Merck/Fisher/SigmalFinar

Ammonia buffer solution for Total Hardness analysis (500ml/PACK) Make: MercklFisherlSigmalFinar

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

lron standard solution 100.mg/L traceable to SRMfrom NISTTraceable (125 ml/PACK) Make: Inorg Venture/ Reagecon/Merck/Sigma/Equiv

Reagent suitable for spectrophotometric analysis of Manganese in potable water Range: 0.1-10 mg/l of Manganese, (250 tests/PACK) Make: Merck/Lovibond/Palin/WTW

Manganese standard solution traceable to SRM from NIST Traceable (125 ml/PACK) Make: Inorg Vent/Reagecon/Merck/Sigma

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

Sterilising Ether Solvent (Biosol) (450ml/PACK)

Extran / Labolene/ Finklin (5L/PACK) Make: Merck/ Fisher/ Finar

DPD Tablet for Residual Chlorine, easily dispersible, suitable for Comparometric determination, pack of 250 tabs

Reagent Bottle clear Glass autoclavale 250 ml

Conical Flask 100 ml

Glass dropper with rubber tit 8 cm. with 10 cm. jet

Pipettes Graduated serological (l0 ml)

Pipettes Sucker( 1 set)

Burette glass (50 ml)

Bottle P.P (100 ml)

Rectangular cuvette 10 mm

Rectangular cuvette 20 mm

Bottle P.P (200 ml)

Standard Volumetrict flax 100ml(Plastic)

Tissue Roll

Sodium Chloride Vloumetric standard secondary reference materials for argentometry , treacable to NIST SRM

Silver Nitrate analytical grade 25 gm

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-in-charge: Make: Lovibond/Merck

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

Buffer pH 7.00 @25 Deg C Calibration solution calibrated against NIST Traceable SBS (480ml PACK) make: Eutech/WTW/Equiv

Buffer pH 10.01 @25 Deg C Calibration solution calibrated against NIST Traceable SBS (480ml PACK) make: Eutech/WTW/Equiv

Fluoride standard solution traceable to SRM from NIST Traceable (500ml/PACK)Make· 'Inorganic vent/Reagecon/ ~erc~'Sigrra/ Equivalent

Potassium Chloride chloride analytical grade , 500 gm

Sodium Hydroxide 1N , 500 ml

Murexide Indicator, 5gm/pack

Ethanol (Iso propyl Alchol analytical) 500 ml

Platinum Cobalt ColorReference Sollution (HAZEN 500) 500 MG/l

Methyl Red Indicator 50 gm

Bromocresol green indicator 5 gm

Methyl Orange Indicator

Burette stand-with single burette clamp PP coated set

Nessler cylinder with cover (color comparisom cylinder) 50 ml as per IS 4161:1967

Turbidity Standered Non Ratio , 1000 NTU , certified by ISO 17025 accrediated test method , NIST treacable , 500 ml (CRM)

Beaker plastic 50 ml

EDTA Disodium Salt (Titriplex III) 100 gm

Dropper, Pack of 500 pcs

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GIYASUDDIN SEKH

Utsav Agency

BHARATI CHEMICAL AND SCIENTIFIC WORKS

GIYASUDDIN SEKH