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

Merck Zinc volumetric standard, secondary reference material for complexometry, traceable to NIST SRM Certipur® Reag. Ph Eur

H₂O 'da0.200 mg/L Al
100 ml/paket

2 mol/l 1000 mg/L Sn
100 ml/paket

Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (20°C) Certipur®

Merck Hafnium ICP standard traceable to SRM from NIST HfCl in HCl 7% 1000 mg/l Hf Certipur®

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

H₂O 'da 250 mg/L Clˉ
100 ml/paket

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

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

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

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

Merck Certified sec. standard reference buffer solution potassium dihydrogen phosphate/di- sodium hydrogen phosphate, directly traceable to primary SRM from NIST/PTB pH(S) = 6.86 (25°C) Certipur®