Merck Certified sec. standard reference buffer solution potassium hydrogen phthalate directly traceable to primary SRM from NIST/PTB pH (S) = 4.00 (25°C) Certipur®

 0.5 mol/l 1000 mg/L Co
100 ml/paket

Merck Buffer solution (di-sodium hydrogen phosphate/potassium dihydrogen phosphate), colour: green traceable to SRM from NIST and PTB pH 7.00 (20°C) Certipur®

Merck Molybdenum ICP standard traceable to SRM from NIST (NH ) Mo O in H O 1000 mg/l Mo Certipur®

Merck Buffer solutions traceable to SRM from NIST and PTB 10 x pH 4.01 (phthalate) 10 x pH .700 (phosphate) 10 x pH 10.00 (borate) pH 4.01/pH 7.00/pH 10.00(25°C) Certipur®

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride) traceable to SRM from NIST and PTB pH 4.00 (25°C) Certipur®

Merck Potassium iodate volumetric standard, secondary reference material for iodometry, trace able to NIST SRM Certipur®

Merck Strontium standard solution traceable to SRM from NIST Sr(NO ) in HNO 0.5 mol/l 1000 mg/l Sr Certipur®

Merck Iron(II) ethylenediammonium sulfate Volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur

0.5 mol/l 1000 mg/L Cd 
100 ml/paket

Merck Buffer solution (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (25°C) Certipur®

Merck Sodium chloride volumetric standard, secondary reference material for argentometry, tra ceable to NIST SRM Certipur® Reag. Ph Eur,Reag.USP

Merck Magnesium ICP standard traceable to SRM from NIST Mg(NO ) in HNO 2-3% 10000 mg/l Mg Certipur®