Merck Buffer solution (boric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 8.00 (20°C) Certipur®
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Merck Potassium hydrogen tartrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 3.63 / pH(S) = 3.55 (25°C) Certipur®
4.0 - 40.0; 10 - 150 ve 100 - 1500 mg/L; 0.30 ml her bir ölçüm için Spectroquant®
1 adet/paket 65 ml
Merck Zirconium standard solution traceable to SRM from NIST ZrCl in HCl 2 mol/l 1000 mg/l Zr Certipur®
Merck Hafnium ICP standard traceable to SRM from NIST HfCl in HCl 7% 1000 mg/l Hf Certipur®
Merck Benzoic acid volumetric standard, secondary reference material for alkalimetry, traceabl e to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP
Merck Buffer solution (potassium dihydrogen phosphate/di-sodium hydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (25°C) Cer tipur®
Merck Sodium hydrogen carbonate/sodium carbonate certified secondary standard reference material for Ph measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 10.01 (25°C) Certipur®
Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride) colour: red traceable to SRM from NIST and PTB pH 4.00 (20 °C) Certipur®
Merck Iron ICP standard traceable to SRM from NIST Fe(NO ) in HNO 10% 10000 mg/l Fe Certipur®