Merck

1990030001 Buffer solution (boric acid/potassium chloride/sodium hydroxide solution), traceable to SRM from NIST and PTB pH 9.00 (25°C) Certipur®

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Merck

1099810001 Sulfuric acid for 1000 ml, c(H2SO4) = 0.5 mol/l (1 N) Titrisol

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Merck

1990060001 Buffer solutions traceable to SRM from NIST and PTB 10 x pH 4.01 (phthalate) 10 x pH 7.00 (phosphate) 10 x pH 10.00 (borate) pH 4.01/pH 7.00/pH 10.00(25°C) Certipur®

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Merck

1099210001 Potassium hydroxide solution c(KOH) = 0.1 mol/l (0.1 N), concentrate for preparing 1000 mL volumetric solution for titration, Titrisol®

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Merck

1990040001 Buffer solution pH 10.00 (25°C) Certipur®

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Merck

1094450500 Buffer solution pH 4.00 (25 GRAD C) Certipur®

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Merck

1990190001 Buffer solution (di-sodium tetraborate)tracable to SRM from NIST and PTB pH 9.18 (25°C) Certipur

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Merck

1094420500 Buffer solution pH 2.00 (25 GRAD C) Certipur®

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