Merck Certified sec. standard reference buffer solution potassium dihydrogen phosphate/di- sodium hydrogen phosphate, directly traceable to primary SRM from NIST/PTB pH(S) = 7.41 (25°C) Certipur®

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®

Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 9.00 (20°C) Certipur®

Merck Tellurium standard solution traceable to SRM from NIST H TeO in HNO 0.5 mol/l 1000 mg/l Te Certipur®

Merck Water standard 1% Certified Reference Material for Karl Fischer Titration 1 g 10 mg H O Aquastar®

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

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

H₂O 'da 1000 mg/L COD
100 ml/paket

Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (20°C) Certipur®

H₂O 'da 100 mg/L COD
100 ml/paket

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

Merck di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=9.18 (25°C) Certipur®

H₂O 'da 40 mg/L SO₄
100 ml/paket