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

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride) traceable to SRM from NIST and PTB pH 4.00 (25°C) Certipur®

Merck Beryllium standard solution Be O(C H O ) in HNO 0.5 mol/l 1000 mg/l Be Certipur®

Merck Calcium ICP Standard traceable to SRM from NIST Ca(NO ) in HNO 2-3% 1000 mg/l Ca Certipur®

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

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

H₂O 'da 6.00 mg/l NH₄-N
100 ml/paket

Merck Lead ICP standard traceable to SRM from NIST Pb(NO ) in HNO 2-3% 10000 mg/l Pb Certipur®

 H₂O 'da 100 mg/L TOC
100 ml/paket

Merck Buffer solution (boric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 8.00 (20°C) Certipur®

H₂O 'da 100 mg/L N
100 ml/paket

H₂O 'da 125 mg/L SO₄
100 ml/paket

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