Merck Lactose Standard 5 % Certified Reference Material for Karl Fischer Titration Aquastar®

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

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

 0.5 mol/l 1000 mg/L Zn
100 ml/paket

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

Merck Buffer solution (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) Certipur®

Merck Lithium standard solution traceable to SRM from NIST LiNO in HNO 0.5 mol/l 1000 mg/l Li Certipur®

Merck Buffer Solution (di-sodium hydrogen phosphate/sodium hydroxide) traceable to SRM from NIST und PTB pH 12.00 (25°C) Certipur®

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

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

H₂O 'da 100 mg/L COD
100 ml/paket

Merck Sodium tartrate dihydrate Certified Reference Material for Karl Fischer Titration 15.66% Aquastar®

H₂O 'da 2.50 mg/L NO₃-N
100 ml/paket