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

Amonyum, COD, Azot fotometrik metodların kalite kontrolleri için Spectroquant®
1 adet/paket

Merck Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (25°C) Certipur®

Merck Potassium hydrogen tartrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 3.63 / pH(S) = 3.55 (25°C) Certipur®

Merck Rubidium ICP standard traceable to SRM from NIST RbNO in HNO 2-3% 1000 mg/l Rb Certipur®

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

Merck Buffer Solution (boric acid/potassium chloride/sodium hydroxide) colour coded: yellow, tr aceable to NIST and PTB pH 10.00 (20°C) Certipur®

H₂O 'da 15.0 mg/L NO₃-N
100 ml/paket

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

Merck Tellurium ICP standard traceable to SRM from NIST H TeO in HNO 2- 3% 1000 mg/l Te Certipur®

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

H₂O 'da 1000 mg/L COD
100 ml/paket

H₂O 'da 0.050 mg/L Mn
100 ml/paket