Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide) traceable to SRM from NIST and PTB pH 9.00 (25°C) Certipur®

H₂O 'da 0.200 mg/L NO₂-N
100 ml/paket

Merck Molybdenum ICP standard traceable to SRM from NIST (NH ) Mo O in H O 1000 mg/l Mo Certipur®

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

2 mol/l 1000 mg/L Au 
500 ml/paket

Merck Certified sec. standard reference buffer solution di-sodium tetraborate decahydrate, directly traceable to primary SRM from NIST/PTB pH(S) = 9.18 (25°C) Certipur®

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

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

Merck Buffer solution (di-sodium hydrogen phosphate/potassium dihydrogen phosphate), colour: green traceable to SRM from NIST and PTB pH 7.00 (20°C) Certipur®

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

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

10.0 mg/L TOC
100 ml/paket

Merck Bismuth standard solution traceable to SRM from NIST Bi(NO ) in HNO 0.5 mol/l 1000 mg/l Bi Certipur®