Procurement Of Chemicals For Water Testing Laboratories Under Howrah Division Phe Dte- 1 Arsenic standard solution traceable to SRM 1000 mg/I As r NIST Traceable (125 ml/PACK) Make: Inorg Venture/Reagecon/Merck/Equiv 2 Formaldehyde, 500 ml 3 Sodium Thio-Sulphate Pentahydrate, 500 ml 4 Borax 5 Strach Soluble, 500 gm. Analytical Quality 6 Ammonium Buffer Solution, 500 ml 7 Non Absorbent Cotton 8 Sterilising Ether Solvent (Biosol) (450ml/PACK) 9 Sodium carbonate volumetric standard, secondary reference material for acidimetry, traceable to NIST SRM 10 Calcium carbonate volumetric standard. secondary reference matenal for complexometry, traceable to NIST Standard Reference Material (SRM) 11 Sodium chloride volumetric standard, SRM for argentometry, traceable to NIST 12 Turbidity Standard Non Ratio, 1000 NTU, certified by ISO 17025 Accredited test Method. NIST traceable, 500 ml 13 Potassium Chloride, CRM, NIST Traceable, 5 gm 14 Potassium Chloroplatinate, 1 gm 15 Cobalt Chloride, 100 gm 16 Sulfuric Acid about 98%, 2000 ml 17 Phenolpthelein indicator 18 Methyl Red indicator 19 Bromocresol Green indicator 20 2-Propanol (Iso propyl Alcohol) 21 EDTA Disodium salt (Titriplex-III), 100 gm 22 Ammonia Solution 25%, 1000 ml 23 Ammonium Chloride , 500gm 24 Magnesium Sulfate, 500 gm 25 Hydroxylamine Chloride, 100 gm 26 Erichrome Black-T, 25 gm 27 Triethanolamine, 500 ml 28 Sodium Hydroxide 1N, 2 amp 29 Hydrochloric Acid 0.1N, 500 ml 30 Murexide (5,5’-Nitrilobarbituric Acid MonoammoniumSalt) for analysis EMPARTA® ACS, 5 gm 31 Potassium Chloride analytical grade, 500 gm 32 Nitric Acid 69%, 500 ml 33 Ethanol, 500 ml 34 Potassium Chromate analytical grade assay min: 99.5%, pH of 5% soln : 9.02-9.8, 500 gm 35 Water for Chromatography, 1 lit pk 36 Nitrile Gloves, pk of 100 nos 37 Beaker 250 ml, Borosilicate glass 38 Beaker 100 ml, Borosilicate glass 39 Conincal Flask 250 ml, Borosilicate glass 40 Conincal Flask 500 ml, Borosilicate glass 41 Sample collection Bottle, 500 ml 42 Chromogenic Coliform Agar, for simulteneous determination & count of Escherichia coli and Total coliforrns in water samples as per ISO 9308-1:2014, lOOgm pack Merck/Himedia 43 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 44 lron standard solution 1000.mg/L traceable to SRMfrom NIST Traceable (125 ml/PACK) Make: Inorg Venture/ Reagecon/Merck/Sigma/Equiv 45 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 46 Manganese standard solution traceable to SRM from NIST Traceable (125 ml/PACK) Make: Inorg Vent/Reagecon/Merck/Sigma 47 pH Buffers - 25°C: Clear, Colourless pH Buffer Solutions. Tested at 25°C and certified by Reagecons[SO 17025 accredited test method. NIST traceable, pH:4.00 ±0.01@25°C in 500 ml 48 pH Buffers - 25°C: Clear, Colourless pH BufferSolutions. Tested at 25°C and certified by ReagcconsISO 17025 accredited test method. NIST traceable, pH:7.00 ±0.01@25°C in 500 ml 49 pH Buffers - 25°C: Clear, Colourless pH BufferSolutions. Tested at 25°C and certified by ReageconsISO 17025 accredited test method. NIST traceable, pH:10.00 ±0.OI@25°C in 500 ml 50 Tissue rolls (medium)-2X21mt 51 ACS Grade, make : Merck / Sigma 52 Consumables for Bacteriological analysis by MF technique. Radiation Sterilie Plate 15X60mm, 250 nos a pack 53 Potassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NISTstandard reference material. 54 Acetic Acid Glacial Analytical grade, set of 1000 ml 55 Ammonia Acetate, 500 gm, Analytical Grade 56 Conductivity Standard Solution, 1413uS, 480 ml 57 DPD Tablet for Residual Chlorine, easily dispersible, suitable for Comparometric determination, pack of 250 tabs 58 Hydrochloric Acid, 35% for Washing Purposes. (5L Pack) 59 Hydrochloric Acid, 37% or 12 M, 500 ml/pack 60 Extran, 5 L Pack 61 Aluminium Foil roll, 300mm, 9m 62 Analytical quality, Assay : Min. 99.8% 63 Zinc Granules (Arsenic free, As content : 0.00001% Max), 500 gm 64 Chloroform, Analytical Grade, Dry Solvent, Water content maximum : 0.01% Max, 500 ml 65 Tin (II) Chloride dihydrate Analytical Quality Solubility : 10% solution in dil HCl should be clear & Assay: min. 99.00%, 100 gm 66 Lead (II) Acetate trihydrate, Assay : Min. 99%, 500 gm 67 Acetone Lab Grade, 500 ml 68 Morpholine, Lab Grade, 500 ml 69 1,10-Phenanthroline monohydrate, Set of 15 gms 70 Silver Nitrate Analytical Grade 25 gm 71 ConsumabIes 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 MerckIHimedia/ Axiva 72 Add 10% Agency Profit