tender for maintenance of water supply system supply installation testing calibration and commissioning of equipments for laboratory at verna mbr-supply, installation, testing, calibration and commissioning of analytical balance , model mab301 , capacity 320g, in wensar or equivalent in shimadzu/mettler toledo , complete with all accessories . 2 supply, installation, testing, calibration and commissioning of sension+ ph3 laoratory ph and orp meter , make hach or equivalent in eutech, complete with all accessories like integrated magnetic stirrer and probe holder, power supply with interchangeable plugs, sension+ 5010t ph combination electrode with temperation sensor , ph4, ph7 and ph10 calibration standard solutions 125ml, kci electrolyte solution 50ml, 3 calibration beakers and printed documantation etc. 3 supply, installation, testing, calibration and commissioning of 2100q portable turbidimeter kit, make hach or equivalent in eutech , complete with all accessories like usb + power module, instruction kit(2100q01 ) etc. 4 supply, installation, testing, calibration and commissioning of lmcm-20, microprocessor based conductivity/tds meter , make labman or equivalent in eutech/hach , complete with all accessories like conductivity cell (k=1), calibration solutions-84.0µs/cm, 1413µs/cm, 12.88µs/cm, temperature probe, electrode stand, 9v power adaptor, instruction manual etc. 5 supply, installation, testing, calibration and commissioning of lmd050, microprocessor based dissolved oxygen meter , make labman or equivalent in eutech/hach , complete with all accessories like dissolved oxygen probe , electrode stand, 5v ac adaptor & instruction manual etc. 6 supply, installation, testing, calibration and commissioning of msi 5 hot air oven , make meta-lab or equivalent in quality, with chamber size 45 x 45 x 60cm, volume 120ltr, 1250w , shelves 4nos., complete with forced air circulating system and fan for temperature uniformity, inbuilt timer, castor wheel, safety thermostat etc.