supply of chemicals, glass ware and accessories for different water testing laboratories of north 24pgs district under barasat division, phe dte.--- 1 silver diethyl -dithio- carbamate for analysis,( 5 gmpack) merck 2 supply of hydrochloric acid min:36.5%. analytical quality & acs grade, arsenic content : 0.01 ppm max.(500ml/pack) make:merck/fisher/sinma/finar (37%) 3 supply of potassium iodide analytical quality (100 gm/pack) assay: min 99.8% make: merck/fisher/sigma/finar 4 supply of tin(ii) chloride dihydrate analyttical quality solubility: 10% solution in dil. hcl should be clear & assay: min.99.00%, (100 gm/pack), make: merck/fisher/sigma/finar 5 supply of lead(ii) acitate trihydrate, assay: min 99% (500 gm/pack) make: merck/fisher/singma/finar 6 zinc fillings for arsenic test(500 gm pack) 7 supply of chloroform analytical quality, dry solvent, water content maximum 0.01% max (500 ml/pack) 8 morpholine acs,500 ml/pack 9 supply of ferrospectral reagent (fe.1) range 0.005-5.00 mg/l fe 2+(1000) test pack 10 manganese reagent, range 0.010-10.0 mh/mn(250 test pack) 11 supply of amonia buffer solution for total hardness analysis(500 ml/pack) make-merck/fisher/sigma/finar 12 supply of edta n/50 solution for total hardness analysis (500 ml/pack) 500 ml pack 13 ph paper box 2-10.5 14 ph buffer -250c clear, colorless ph buffer solution tested at250cand certified by recognise iso 17025 accredited test metod nist traceable ph 4.00 ±0.01 @ 250c in 500 ml. 15 ph buffer -250c clear, colorless ph buffer solution tested at 250cand certified by recognise iso 17025 accredited test metod nist traceable ph 7.00 ±0.01 @ 250c in 500 ml. 16 ph buffer -250c clear, colorless ph buffer solution tested at 250cand certified by recognise iso 17025 accredited test metod nist traceable ph 10.00 ±0.01 @ 250c in 500 ml. 17 supply of conductivity standard 1413 us/cm@25 degc for calibration protocol of inolab conductivity meter (480ml/pack) make: eutech/wtw/equiv 18 arsenicstandardtraceable to srm from nist h3aso4 in hno3 0.5 mol/l 1000mg/l as, 125ml/pack 19 iron standard solution traceable to srm from nist fe(no3)3 in hno3 0.5 mol/l 1000mg/l fe, 125 ml /pack 20 manganese standar solution traceable to srm from nist mn(no3)2 in hno3 0.5 mol/l 1000mg/l mn, 125 ml/pack 21 turbidity standard solution for tq 1100 ,tq1500 ir . make: merck, lovibond 22 chromogenic coliform agar, for simulteneous determination & count of escherichia coli and total coliforms in water samples as per iso 9308-1:2014, 100 gm pack. 23 consumables for bacteriological analysis by mf technique,membrane filter -cellulose nitrate, sterileindividually packed, white membrane, gridded, 47 mm dia, 0.45 micron porosity, pack of 100 circles 24 sterile petri plate(pp) 60x15 mm pack of 250 nos himedia 25 supply of sterilising ethar solvent (biosol) (450ml/pack) 26 extran /labolene/finklin neutral ph(5l/pack)make: merck/fisher/finar 27 supply of acetone lab grade 500 ml /pack., make: merck/fisher/sigma/ finar 28 burret glass(50ml), class b, 29 funnel 3 30 arsine generator 100 ml complete with glass wool adaptor, absorber tube for arsenic testing & complete with 5 ml volumetric apparatus, borosilicate glass & with all matching standard joints, complete set 31 sterile sample bottle (tarson) for bacteriological sample collection 32 consumables for bacteriological analysis by mf technique. radiation sterilie plate 15x60mm, 250 nos a pack 33 sample collection bottle 200 rnl 34 volumetric flask (100ml) class b 35 measureing cylinder (50ml) 36 measureing cylinder (25ml) 37 volumetric flask (500ml)class b 38 beaker pp (100ml) 39 beaker , low form, graduated(250ml) 40 beaker low form, graduated (500ml) 41 glass dropper with rubber tit 8 cm. with 10 cm jet 42 spatula (ss)8 43 tissue paper rolls (medium)-(2x21 mt) roll 44 solvent for lamp. 5 lit pack 45 aluminium tray 46 micro pippet controler upto 100 ml 47 duster fine/coarse 48 safety gloves ,pk of 2 nos. 49 nitrile gloves ( 100 nos box ) 50 supply of dpd tablet for residual chlorine easily dispersible, suitable for comparometric determination, pack of 250 tabs make: lovibond. 51 ethanol (merck/imported)500 ml 52 filter paper no 1/11cm(gr11 1.0cm 100 pk) 53 sulfuric acid about 98%, 2000 ml 54 glass wool low in lead/pack 55 l(+) ascorbic acid analytical grade 100g 56 sodium borohydride 200g 57 sosdium hydroxide pallets 500g