supply of fine chemicals labwares and plasticwares for chemical laboratory, atps, mppgcl, chachai. , regular laboratory testing chemicals , sulphuric acid 25 % (emsure( r)) , 1-amino-2-hydroxy-4-naphthalenesulfonic acid for analysis (extra pure) , sodium hydrogen sulphate monohydrate (emsure( r)) , potassium sodium tartrate er 500g (er) , para dimethyl amino benzaldehyde (sq 100g) , bromo cresol green indicator ph 3.6-5.2 , methyl red indicator , phenolphthalein indicator ph 8.2-9.8 , ammonium purpurate (muroxide) sq 5g , eriochrome black-t (c.i. 14645) indicator for analysis emparta ® acs , ammonium hydroxide/ ammonia solution 28-30% for analysisemparta ® , mercury (ii)iodide red emprula ® , starch soluble for analysis emparta® acs , sodium chloride emprula ® , tin (ii) chloride dihydrate emprula ® , pattons + readers reagent , sodium sulphite anhydrous sq , hydroxylammonium chloride sq , iso propyl alcohol (propan-2-o1) , hydrochloric acid er , certified reference material (crm) , ph 4.0 buffer soln. - traceable to srm from nist(250c) [ 900 ml / 30 pouch pack (1 pouch =30 ml)] , ph 7.0 buffer soln. - traceable to srm from nist(250c)[ 900 ml / 30 pouch pack (1 pouch =30 ml)] , ph 10.0 buffer soln. - traceable to srm from nist(250c) [ 900 ml / 30 pouch pack (1 pouch =30 ml)] , silicate standard 0.500 mg/ltr sio2[ 100 ml / bottle ] , silicate standard 1.0 mg/ltr sio2 [ 100 ml / bottle ] , silicate standard 0.100 mg/ltr sio2[ 100 ml / bottle ] , potassium chloride solution (c=0.1 mol/lcertified ref. material for measurement of eloctrolytic conductivity (12.8 ms/cm)-traceable to srm from nist , potassium chloride solution (c=0.001 mol/lcertified ref. material for measurement of eloctrolytic conductivity (0.147 ms/cm)-traceable to srm from nist , iron standard solution 0.0500 mg/l[ 100 ml / bottle ] , chloride standard solution (1.00 mg/l) , turbidity 4000 ntu calibratiob standard-formazine, traceable to srm from nist , laboratory ware , spatuchla one end flat and one end spoon 6 , tongs crucible, ss 10 , crucible tong with bow stainless steel 12 , quartz crucible, cap. 15 ml , (i) ldpe narrow mouth sampling bottles with cap (500 ml)[ 48 piece / pack ] , (ii) ldpe wide mouth sampling bottles with cap (500 ml) [ 48 piece / pack ] , (iii) ldpe wide mouth sampling bottles with cap (1000 ml) [ 24 piece / pack ] , micro pipette- c3 variable volume 10-100?l