Merck Buffer solution (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (20°C) Certipur®

Merck Potassium hydrogen phthalate certified secondary standard reference material for pH m easurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.00
(25°C) Certipur®

1000 mg/L SO₄
500 ml/paket

1000 mg/L PO₄
500 ml/paket

Merck Potassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP

Merck Molybdenum ICP standard traceable to SRM from NIST (NH ) Mo O in H O 1000 mg/l Mo Certipur®

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

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 Sodium ICP standard traceable to SRM from NIST NaNO in HNO 2-3% 1000 mg/l Na Certipur®

Merck Tellurium ICP standard traceable to SRM from NIST H TeO in HNO 2- 3% 1000 mg/l Te Certipur®

H₂O 'da 1.00 mg/l NH₄-N
100 ml/paket

0.5 mol/l 1000 mg/L Ca
500 ml/paket

H₂O 'da 0.200 mg/L Mn
100 ml/paket