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

Merck Selenium standard solution traceable to SRM from NIST SeO in HNO 0.5 mol/l 1000 mg/l Se Certipur®

0.5 mol/l 1000 mg/L As
100 ml/paket

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 2.00 (20°C) Certipur®

Merck di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=9.18 (25°C) Certipur®

Merck Scandium standard solution traceable to SRM from NIST Sc O in HNO 1 mol/l 1000 mg/l Sc Certipur®

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

Merck Samarium ICP standard traceable to SRM from NIST Sm O in HNO 2-3% 1000 mg/l Sm Certipur®

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

Merck Buffer solution (di-sodium hydrogen phosphate/ potassium dihydrogen phosphate), colour:yellow traceable to SRM from NIST and PTB pH 7.00 (25°C) 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

H₂O 'da 0.1000 mg/L SiO₂
100 ml/paket

Merck Buffer solution (di-sodium tetraborate) traceable to SRM from NIST and PTB pH 9.18 (25°C) Certipur®