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Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 9.00 (20°C) Certipur®
Merck Water Standard 0.01 % Certified Reference Material for Karl Fischer Titration 1 g 0.1 mg H O Aquastar®
Merck Zirconium ICP standard traceable to SRM from NIST ZrCl in HCl 7% 10000 mg/l Zr Cer tipur®
Merck Tris(hydroxymethyl)aminomethane volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP
Merck Phosphorus ICP standard traceable to SRM from NIST H PO in H O 1000 mg/l P Certipur®
Merck Sodium chloride volumetric standard, secondary reference material for argentometry, tra ceable to NIST SRM Certipur® Reag. Ph Eur,Reag.USP
Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide) traceable to SRM from NIST and PTB pH 9.00 (25°C) Certipur®