Merck Lactose Standard 5 % Certified Reference Material for Karl Fischer Titration Aquastar®
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Merck Zirconium ICP standard traceable to SRM from NIST ZrCl in HCl 7% 1000 mg/l Zr Certi pur®
Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide) traceable to SRM from NIST and PTB pH 10.00 (25°C) Certipur®
Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (25°C) Certipur®
Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride) traceable to SRM from NIST and PTB pH 4.00 (25°C) Certipur®
Merck Lanthanum ICP standard traceable to SRM from NIST La(NO ) in HNO 2-3% 1000 mg/l La Certipur®
Amonyum, klorür, COD, nitrat, fosfat, sülfat fotometrik metodların kalite kontrolleri için Spectroquant®
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Merck Certified sec. standard reference buffer solution potassium hydrogen phthalate directly traceable to primary SRM from NIST/PTB pH (S) = 4.00 (25°C) Certipur®
Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide) traceable to SRM from NIST and PTB pH 9.00 (25°C) Certipur®