supply and delivery of chemicals, reagents and consumables for 14 ( fourteen ) laboratories under burdwan division, p.h.e. dte. , chromogenic coliform agar, for simulteneous determination & count of escherichia coli and total coliforrns in water samples as per iso 9308-1:2014, l00 gm pack mercklhimedia , consurnabies for bacteriological analysis by mf technique, membrane filter- cellulose nitrate, sterile- individually packed, white membrane, gridded, 47mrn dia, 0.45 micron porosity, pack of 100 circles merckihimedia / axiva , reagent suitable for spectrophotometric analysis of iron in potable water, range 0.005-5.00 mg / l soluble iron ( 1000 tests / pack ) make: merck / lovibond / wtw , reagent suitable for spectrophotometric analysis of manganese in potable water range: 0.1-10 mg / l of manganese, ( 250tests / pack ) make: merck / lovibond / wtw , manganese standard solution traceable to srm from nist traceable ( 125 ml / pack ) make: inorg vent / reagecon / merck / sigma / equivalent , lron standard solution 1000.mg / l traceable to srmfrom nisttraceable ( 125 ml / pack ) make: inorg venture / reagecon / merck / sigma / equiv , sterilising ether solvent ( biosol ) ( 450ml / pack ) , extran / labolene / finklin ( 5l / pack ) make: merck / fisher / finar , dpd tablet for residual chlorine, easily dispersible, suitable for comparometric determination, pack of 250 tabs , potassium chloroplatinate, ( crm ) , petridisc autoclavable borosilicate glass 60x15 mm , tissue roll , alluminium foil , standard buffre solution ( ph 4.01 ) , nist , standard buffre solution ( ph 7.00 ) , nist , standard buffre solution ( ph 10.01 ) , nist , potassium iodide er, 100gm, make -thermo / alfa / acros / merck / sigma / finar , tin ( ii ) chloride dihydrate analytical quality solubility: 10% solution in dil. hcl should be clear & assay: min. 99.00%, ( 100gm / pack ) , make: merck / fisher / sigma / finar , low lead glass woll ( 250gm ) , chloroform analytical quality, dry solvent, water content maximum: 0.01% max ( 500ml / pack ) make: merck / fisher / sigma / finar , silver diethyldithiocarbamate for arsenic analysis, acs grade assay: 99% min ( 5 gm / pack ) , make : merck , arsenic standard solution traceable to srm 1000 mg / l as , nist traceable ( 125 ml / pack ) make: inorg venture / reagecon / merck / fisher / eqv. , zinc fillings, 500gm, make - thermo / merck / himedia / loba , duster fine , absorbence cotton roll , ph paper ( 10 books ) , acetone lab grade ( 500ml / pack ) make: merck / fisher / sigma / finar , solvent for lamp ( 5lit pack ) , silicon grease ( 50gm ) , mask ( good quality ) , arsenic generator 100ml, complete with glass wool adaptor, absorber tube for arsenic testing, complete with 5ml volumetric apparatus, borosilicate glass and all matching standard joint. , filter paper 542 no ( for tds ) dia 125mm. ( 100 pics ) , filter paper 1 no ( for arsenic by ass ) dia 125mm. ( 100 pics ) , volumetric flask ( 1000 ml ) class-a borosil / riviera / religlass , volumetric flask ( 500 ml ) class-a borosil / riviera / religlass , conical flask ( 250 ml ) class-a borosil / riviera / religlass , graduated beakar ( 500 ml ) class-a borosil / riviera / religlass , dropping bottle ( 125 ml ) , glass pipatte ( 25 ml ) class-a borosil / riviera / religlass , glass fannel ( 75 mm ) borosil / riviera / religlass , glass dropper with rubber tit 8 cm. with 10 cm. jet , silica gel ( desicant ) 1 kg , pp container ( 1000 ml ) tarson