Tender For item wise procurement and supply of laboratory items for a period of 12 months - equipments, digital turbidity meter/ nephelometer -(a).parameter range- 0 to 200 & 200 to 1000 ntu*. (b). readability - 0.1 ntu & 1.0 ntu. ( c). accuracy - 3% of range. (d). repeatability - 2% of range. (e). light source - tungsten halogen lamp. (f). detector - photo diode. (g). data presentation - 31/2 digit 7 segment led of 12.7 mm height. (h). accessories - matched test tubes- 5 nos. (i). useful for determination of sulphate, phosphate, chloride, zn, ag, etc. by astm procedure. (j). extendable for measurement of inhibition growth of semantic microbial agent .brands-systronic,techlab,elko, digital conductivity meter with conductivity cell type cc-03b. (a). conductivity range : 0 to 20,200 m s*, to 2,20 & 200 m s*, (b) readability : 0.05% of range, (c) accuracy ; +_1% of range, (d) repeatability;+_1% of range, (e) data presentation: 31/2 digit 7 segment led of 12.7 mm height, (f) operating frequency: 1000hz, (g) temp. compensation: 0 to 500 c manual, (h) cell constant: 0.05, 0.1 or 1.0 (selectable), (i) out put: 20mv full scale into 10kz resistive impedance, (j) accessories: cell stand with cell holding clip.brands-systronic,techlab,elko, digital ph meter with combined ph electrode type cl - 51b (a). ph range: 0 to 14, +_1999 emf (mv), (b) readability : 0.1 ph, 1emf(mv), (c) accuracy ; +_0.01 ph, +_1 emf (mv), (d) repeatability;+_0.01 ph, +_1 emf, (e) temp. compensation: 0 to 1000 c manual, (f) data presentation: 31/2 digit 7 segment led of 12.7 mm height with polarity, (g) accessories: stand with electrode holding clamp, buffer tablets and polythine bottle, (h) physical dimensions: size 295 x 165 x 140 & weight - approximate 3, (i) manual 2 point calibration for ph, digital salinity meter (micro processor based water analyzer with magnetic stirrer), (a) measures directly ph, emf, temperature, electrolyte conductivity(ec), total dissolved solid (tds), dissolve oxygen (do), sanitary colorimeter (abs & %t) and turbidity in water sample one at a time. (b) data presentation: 2 lines 16 character dot matrix lcd modules, (c) light weight portable and easy to carry on field, (d) operates on rechargeable battery & mains supply, (e) ph: range- 0-14, readability- 0.001, accuracy - +_0.001,repeatability - +_0.1, (f) emf (mv): range- +_1999,9, readability - 0.1, accuracy - +_0.1, repeatability- +_0.1, (g) temp: range - 0-1000 c, readability - +_0.1, accuracy - +_0.5, repeatability - +_0.1, (h) ec; : range - 0-200 ms (5 ranges), readability - 0.05% of range, accuracy - +_0.1 of range, repeatability - +_0.5% of range, (i) tds: range- 0 to 100 ppt 5 range with pds factor 0.5, readability - +_0.05% of range, accuracy - +_1% of range, repeatability - +_0.5% of range, (j) do: range - 0-20, readability - 0.1, accuracy - +_0.1, repeatability - +_0.1 (k) colorimeter: range- +_2 abs & 0 to 100% t, readability - 0.001, accuracy - +_0.05 abs, repeatability - +_0.01 abs, (l) turbidity: range - 0 to 100 ntu, readability - 0.001, accuracy - +_2%, repeatability - +_0.1% (m) salinity ranger: 0 to 40 ppt, accuracy - +_1%, temp, compensation - 0 to 500c, sensor- ise (chloride) & re- bnc, (n) accessories: ce, dip type conductivity cell of 1.0 cell constant, do probe, thermo probe, magnetic stirrer, mains operated electromagnetic stirrer gi 631, stirring capsules, electrode stand with holding clamp, gas permeable membranes and 10mm & 30mm test tubes., zerological water bath superior quality(manufactures specification should be uploaded), ph meter (pocket type), brands-tamp,techlab,scientix, tds meter (pocket type) ,brands-tamp,techlab,scientix, magnetic stirrer superior quality (manufactures specification should be uploaded), heating mantle superior quality (manufactures specification should be uploaded), rainguage with measuring cylinder superior quality (manufactures specification should be uploaded), water purifier (dew drops)superior quali
18 Aug, 2025
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