Merck Cadmium ICP standard traceable to SRM from NIST Cd(NO ) in HNO 2-3% 1000 mg/l Cd Certipur®

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

Merck Selenium ICP standard traceable to SRM from NIST SeO in HNO 2-3% 1000 mg/l Se Certipur®

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 4.00 (20°C) Certipur®

Merck Tungsten standard solution traceable to SRM from NIST (NH ) WO in H O 1000 mg/l W Certipur®

H₂O 'da 50.0 mg/L NO₃
100 ml/paket

H₂O 'da 50.0 mg/L TOC
100 ml/paket

H₂O 'da 40.0 mg/L NO₂-N
100 ml/paket

Merck Tris(hydroxymethyl)aminomethane volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP

Merck Certified sec. standard reference buffer solution potassium dihydrogen phosphate/di- sodium hydrogen phosphate, directly traceable to primary SRM from NIST/PTB pH(S) = 7.41 (25°C) Certipur®

Merck Sodium standard solution traceable to SRM from NIST NaNO in HNO 0.5 mol/l 1000 mg/l Na Certipur®

0.5 mol/l 1000 mg/L V 
100 ml/paket

Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide), coloured: blue traceable to SRM from NIST and PTB pH 9.00 (20°C) Certipur®