State Level Water Testing laboratory, PWD(DWS) and District Level Water Testing Laboratories /Supply of Laboratory chemicals and Standard Reference Material for Laboratory and District Level Water Testing23-24. TRI/JJM/DIR/ WSSO/01/23-24 (3rdCall

Amount

Supply of following Standard Solutions as per Direction of Engineer-In-Charge.

Supply of Platinum Cobalt Color Reference Solution (HAZEN 500) (250ml = 1 unit)

Supply of Turbidity 1000 NTU Calibration Standard (500 ml) (500ml = 1 unit)

Supply of Buffer solution (citric acid / sodium hydroxide / hydrogen chloride) colour: red, traceable to SRM from NIST and PTB pH 4.00 (500ml = 1 unit)

Supply of Buffer solution (di-Sodium hydrogen Phosphate / Potassium dihydrogen phosphate), colour: green, traceable to SRM from NIST and PTB pH 7.00 (500ml = 1 unit)

Supply Buffer Solution (boric acid/potassium chloride/sodium hydroxide) colour coded: yellow, tracable to NIST and PTB pH 10.00 (500ml = 1 unit)

Supply of Holmium oxide solution reference material for the wavelength according to DAB,Ph Eur (3 X 10 ml = 1 unit)

Supply of Potassium Dichromate in sulphuric acid 0.01N for photometric accuracy reference (8 X 10 ml = 1 unit)

Supply of Potassium Chloride Aqueous solution for use as a stray light reference in UV-Vis Spectrum (3 X 10 ml = 1 unit)

Supply of Toluene solution in hexane for testing the spectral resolution power (8 X 10 ml = 1 unit)

Supply of following laboratory Chemicals as per Direction of Engineer-In-Charge.

Supply of Methanol (2.5 L = 1 unit)

Supply of Ethyl Alcohol (4 L = 1 unit)

Supply of Sodium Chloride for analysis (1 Kg = 1 unit)

Supply of Magnesium chloride hexahydrate for analysis (500 gm = 1 Unit)

Supply of Spectroquant Iron Test, Range 0.005-5.00 mg/l Fe+2 for analysis. (1000 tests = 1 Unit)

Supply of Phenolphthalein 1% indicator solution (125 ml = 1 Unit)

Supply of n-hexane (2.5 L = 1 Unit)

Supply of Acetonitrile (2.5 L = 1 Unit)

Supply of Ethyl Violet Azide Dextrose Agar (500 gm= 1 Unit)

Supply of Thiosulphate Citrate Bile Salt Sucrose Agar (TCBS) Agar (500 gm= 1 Unit)

Supply of Nutrient Broth (500 gm= 1 Unit)

Supply of Violet Red Bile Agar (500 gm= 1 Unit)

Supply of Tergitol-7 Agar Base (500 gm = 1 unit)

Supply of Eosin Methylene Blue Agar (EMB) (500 g = 1 unit)

Supply of Mac Conkey Broth (500 gm = 1 unit)

Supply of Plate Count Agar (500 gm = 1 unit)

Supply of Chloramphenicol yeast glucose Agar (500 gm = 1 unit)

Supply of Differential Reinforced Clostridial Agar (500 gm = 1 unit)

Supply of Asparagine Proline Broth (500 gm = 1 unit)

Supply of 2,3,5 - Triphenyltetrazolium chloride (25 gm = 1 unit)

Supply of Tryptone Bile Agar (500 gm = 1 unit)

Supply of 1-2-Cyclohexylenedinitrilotetraacetic acid monohydrate (100 gm = 1 unit)

Supply of Chromogenic Coliform Agar (CCA Agar) (500 gm = 1 unit)

MOUSHUMI BHATTACHARJEE