tender for supply of fine chemicals and labwares for chemical laboratory, atps, mppgcl, chachai. , regular laboratory testing chemicals , pyrogallol emplura , nesslers regent (for ammonia) , chlorotex reagent , ammonium chloride for analysis emsure acs , hexanol , buffer tablets/capsule ph 4.0 ± 0.05 , buffer tablets/capsule ph 7 ± 0.05 , buffer tablets/capsule ph 9.2 ± 0.05 , edta disodium salt er , iso amyl alcohol sq , nitric acid sq , potassium chromate extra pure , silver nitrate sq , sodium carbonate anhydrous er , tartaric acid er , sodium acetate tri hydrate , sodium thio-sulphate pentahydrate for analysis emparta @acs , sodium hydrogen carbonate er , potassium hydroxide pellets sq , certified reference material (crm) , potassium chloride 4m (for lab ph meter electrode) , potassium chloride 1m (for swas ph electrode) , potassium chloride solution (nominal 1.41 ?s/cm) for the measurement of electrolytic conductivity, traceable to ptb and nist , reagent grade-i dm water , buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to srm from nist and ptb ph 10.00 (25oc) certipure , total hardness standard (1000 ppm) , calsium hardness standard (1000 ppm) , silicate standard solution 0.1000 mg/l sio2 ± 0.0040 mg/l sio2 , silicate standard solution 0.500 mg/l sio2 ± 0.025 mg/l sio2 , silicate standard solution 1.000 mg/l sio2 ± 0.030 mg/l sio2 , laboratory ware , measuring cylinder class-a, pmp cap. 25 ml , measuring cylinder class-a, pmp cap. 50 ml , measuring cylinder class-a, pmp cap. 100 ml , volumetric flask class a, pmp with pp stopper cap.100 ml , volumetric flask class a, pmp with pp stopper cap.250 ml , volumetric flask class a, pmp with pp stopper cap.500 ml , narrow mouth bottle, hdpe with pp closure cap.250 ml , narrow mouth bottle, hdpe with pp closure cap.500 ml , narrow mouth bottle, hdpe with pp closure cap.1000 ml , rectangular hdpe carboy with white pp closure and stopcock , dropping bottle cap.60 ml , dropping bottle cap.120 ml , chlorine color comparator discs , ammonia color comparator discs , ph color comparator discs , steal enamel tray (10x12) , suction bellow