procurement of some equipments materials ( including all taxes ) for central water testing laboratory new town kolkata water treatment plant campus division-i , p . h . e . dte .-1 ice box capacity-6litres ( milton ) n 2 labolene neutral ph-5litre n 3 ammonia buffer solution ( 500 ml ) ( merck / thermofishers ) n 4 arsenic test kit, method : colorimetric with test strips and reagent ( contains malonic acid ) , 0.005-0.010-0.025-0.05-0.10-0.25-0.50 mg / l as ( 100 test ) ( merck ) n 5 reagent bottle ( 1000ml ) ( white ) ( borosil ) 6 reagent bottle ( 1000ml ) ( amber ) ( borosil ) 7 reagent bottle ( 250ml ) ( white ) ( borosil ) n 8 reagent bottle ( 250ml ) ( amber ) ( borosil ) 9 reagent bottle ( 25ml ) ( white ) ( borosil ) n 10 reagent bottle ( 25ml ) ( amber ) ( borosil ) 11 filter paper no:42, 125 mm , whatman 12 total ionic strength buffer solution-iii ( tisab-iii ) ( 475 ml ) ( thermo scientific ) n 13 silver nitrate, analytical grade, ( 50 gm ) ( merck ) n 14 silver diethyl dithio carbmate, for arsenic analysis acs, assay: 99% min, ( 10 gm ) ( merck / lovibond / vwr chem ) n 15 chloroform, analytical grade, dry solvent, water content: max 0.01%, ( 1000 ml ) ( merck ) n 16 phenolphthalein indicator solution ( between ph 8.0-10.0 ) ( 125 ml ) ( merck ) 17 methyl orange indicator solution ( between ph 2.8-4.6 ) ( 125 ml ) ( thermo scientific ) 18 uv safety goggles 19 hydroxylamine hydrochloride, analytical grade, specification : assay-98%, ph value ( 5% water ) -2.5-3.5, acidity -0.25meg / g, ( 500 mg ) ( merck ) n 20 1-10 phananthroline, monohydrate, ( 100 gm ) ( merck ) 21 potassium chromate, analytical grade, assay-min 99.5%, ph of 5% soln-9.02-9.8 ( 500 gm ) ( merck ) n 22 potassium iodide, analytical grade, assay- min 99.8%, ( 200 gm ) ( merck ) n 23 stannous chloride dihydrate, analytical grade, solubility: 10% soln in dilute hcl should be clear & assay : min 99% ( 200gm ) ( merck ) 24 morpholine acs, ( 500 ml ) ( merck ) 25 sodium thiosulphate pentahydrate ( 500 gm ) ( fisher scientific ) n 26 erichrome black-t ( 50 gm ) ( merck ) n 27 filter paper no; 542 ( ge health lifescience ) n 28 hydrochloric acid 35% ( 500ml ) ( merck ) n 29 ammonium acetate ( 500 g ) ( merck ) n 30 sodium acetate ( 500 g ) ( merck ) ( merk ) n 31 hplc water ( 1 lit ) n 32 potassium chromate ( merck ) 33 sulphuric acid ( merck ) 34 lead acetate ( merck ) 35 zinc metal ( merck ) n 36 acetone ( merck ) n 37 sodium thiosulphate ( merck ) n 38 acetic acid glacial, 500g ( merck ) n 39 edta-disodium salt, 100g ( merck ) 40 manganese ( mn ) test kit: ( method- photometric ) ( 0.010- 10 mg / l ) ( 50 tests ) ( merck ) n 41 iron ( fe ) test kit ( method:photometric contains:thioglycolic acid, ammonium thioglycolate. ( 0.05 -5.00mg / l ) ( 250testts ) ( merck ) n 42 lead ( pb ) test kit ( photometric method ) ( 0.010-5.00mg / l pb ) ( 50 tests ) ( merck ) 43 cadmium ( cd ) test kit ( photometric method ) ( 0.002-0.500 mg / l ) ( 50 tests ) ( merck ) n 44 chromium ( cr ) test kit ( photometric method ) ( 0.010-3.00 mg / l ) ( 50 tests ) ( merck ) n 45 copper ( cu ) test kit ( photometric method ) ( 0.02-6.00mg / l ) ( 50 tests ) ( merck ) n 46 tissu paper n 47 digital thermometer with sensor for refrigerator n 48 silica test kit for water sample n 49 electrode for ph meter model no. ph 700 ( utech instrument ) n 50 50 ml volumetric flask with certificate n 51 5ml volumetric flask with certificate n 52 50 ml measuring cylinder with certificate 53 100 ml measuring cylinder with certificate n 54 250 ml measuring cylinder with certificate 55 conductivity standard solution ( 1413 us / cm @ 25° c ) ( nist traceable ) - thermo scientific ( 480ml ) / reagecon 56 xylenol orange indicator ( 125ml ) - ( sigma aldrich / merck / fisher scientific ) n 57 zinc sulfate ( 500 grm ) - ( plus pharma / rpi ) n 58 1000 ntu non ratio turbidity standard ( nist traceable ) - reagecon ( 100 ml ) / merck fisher scientific n 59 aluminium foil 60 petri dish with triple vented radiation sterile ( 460062 ) 60x15mm pack of 250nos ( high media ) n 61 chromocult agar ( 500g ) for microbiolog ( high media ) n 62 iso-propyl alcohol, analytical grade, ( 500 ml ) ( merck ) n 63 calcium carbonate volumetric standard, secondary reference material for complexometry, traceable to nist srm ( 80 gm ) ( merck ) 64 iron standard solution traceable to nist srm 1000 mg / l fe, ( 500 ml ) ( merck ) 65 arsenic standard solution traceable to srm from nist 1000 mg / l as ( 500ml ) ( merck ) 66 oem of turbidity meter ( wtw ) n 67 absorbant pads ( sterile ) ( 100 nos ) ( axiva ) n 68 sterile membrane filter paper ( 0.45μ ) ( 100 nos ) ( highmedia ) n 69 sterile container for microbiology ( 100ml ) ( himedia ) n 70 ph buffers - 25°c : ph: 2.00 ±0.02@25°c, nist traceable ( inorganic venture ) n 71 ph buffers - 25°c : ph: 4.00 ±0.02@25°c, nist traceable ( inorganic venture n 72 ph buffers - 25°c :, ph: 7.00 ±0.01@25°c, nist traceable ( inorganic venture n 73 ph buffers - 25°c , ph: 10.00 ±0.01@25°c, nist traceable ( inorganic venture n 74 ethanol alcohol 95% ( high media ) n 75 sodium chloride volumetric standard, secondary reference material for argentometry, traceable to nist standard reference material. ( 80 gm ) ( merck ) 76 fluoride standard solution 1000 mg / l f¯, nist traceable- certified ( 500 ml ) ( merck ) n 77 cupric sulphate ( 100g ) ( merck ) n