Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 2.00 (25°C) Certipur®

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (20°C) Certipur®

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

0.5 mol/l 1000 mg/L Si 
100 ml/paket

0.5 mol/l 1000 mg/L Mn
500 ml/paket

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

0.5 mol/l 1000 mg/L Ag 
500 ml/paket

Merck Potassium dichromate volumetric standard, secondary reference material for redox titrati on, traceable to NIST SRM Certipur® Reag. USP

Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide) colour coded: blue, trac eable to NIST and PTB pH 10.00 (25°C) Certipur®

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

H₂O 'da 40.0 mg/L NO₂-N
100 ml/paket

Merck Thorium ICP standard traceable to SRM from NIST Th(NO ) in HNO 2-3% 10 mg/l Th Certipur®

Merck Titanium ICP standard traceable to SRM from NIST (NH ) TiF in H O 1000 mg/l Ti Certi pur®