Merck Buffer solution (citric acid/sodium hydroxide), traceable to SRM from NIST and PTB pH 6.00 (25°C) Certipur®

Merck di-Sodium oxalate volumetric standard, secondary reference material for redox titration, tra ceable to NIST Standard Reference Material (SRM) Certipur® Reag. USP

H₂O 'da 0.400 mg/L PO₄-P (toplam)
100 ml/paket

0.5 mol/l 1000 mg/L Ag 
100 ml/paket

Merck Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement of electrolytic conductivity (c=0. 001 mol/l) Certipur®

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

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

Merck Beryllium ICP standard traceable to SRM from NIST Be O(C H O ) in HNO 2- 3% 1000 mg/l Be Certipur®

Merck Buffer solution (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) Certipur®

Merck Phosphorus ICP standard traceable to SRM from NIST H PO in H O 10000 mg/l P Certipur®

H₂O 'da 1000 mg/L COD
100 ml/paket

Merck Thallium standard solution traceable to SRM from NIST TlNO in HNO 0.5 mol/l 1000 mg/l Tl Certipur®

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