WBPHED/EE/RS/e27/2022-2023

Amount

Supply of On-site Mobile Analysis systems for drinking water quality testing as per the specification as below: a) Two mobile incubators to be mounted in a single portable casing, with dual and independent heating systems controlled and calibrated via a highly accurate rheostat system, homogenously insulated to ensure accuracy of temperature to within 0.1deg C and capable of operating on 220V mains electricity, 12V DC supply or an external rechargeable battery (to be included). The system should be capable to run not less than 5 full incubation cycles without additional charging from an external source. Suitable for the quantitative testing of both Thermotolerant and Total coliform counts using a membrane filtration method in an aqueous sample with an accuracy of a single colony forming unit in 18 hours. Both incubators can be calibrated as required by the user either within a laboratory or in the field using suitable adjustment tool, which also to be provided. b) Bacterial sampling apparatus and membrane filtration equipment that can be sterilised in the field for conducting multiple tests in series without the requirement for additional support equipment. c) Reusable bacterial incubation equipment, including stackable precision tooled aluminum lidded petri-dishes in independently aluminum strapped stacks. d) All equipment must be fully portable and able to operate from batteries. The incubator should have re-chargeable battery operated & must last at least 5 days with daily use. All items should be able to be transported for on-site testing, with cases and backpacks provided with each system. e) Must include a smartphone (android OS) pre-loaded with an on-site water analysis & data reporting android based application. f) Must include all required labware including sample bottles, variable volume micropipettes, health and safety equipment, cleaning solutions etc. g) The system should have a cold chain storage solution allowing transportation of remote samples without degradation from source h) Turbidity measurement capability by visual turbidity measurement apparatus, measuring up to 2000NTU i) The system should have a combined handheld EC/TDS/Temp/pH meter with the capability of field testing & digital display of results specified by IS 10500 (2012) j) Arsenic – by using densitometerk) The system should have a portable photometer with built-in automatically deployed color filtration for the following parameter: Iron – by Colorimetric method with digital photometer reading

Supply of Consumables for 4 On-site Mobile Analysis System: (Testing of 50 samples per month for 12 months) 1. Hardness Checking Tablet for Hardness Test 2. Iron Powder for Iron Test 3. Manganese Citrate (Buffer) and Sodium Periodate for Manganese Test 4. Consumable for Free Chlorine and Total Chlorine Test 5. Membrane Filter for Total Coliform and Thermotolerant Coliform Test 6. Media Pad for Total Coliform and Thermotolerant Coliform Test 7. Membrane Lauryl Sulphate Broth (inclusive of all taxes)

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BHARATI CHEMICAL AND SCIENTIFIC WORKS