Merck Buffer solution (potassium dihydrogen phosphate/disodium hydrogen phosphate) traceable to SRM from NIST and PTB pH 7.00 (25°C) Certipur®

Merck Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (25°C) Certipur®

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

0.5 mol/l 1000 mg/L Si 
100 ml/paket

Merck Potassium iodate volumetric standard, secondary reference material for iodometry, trace able to NIST SRM Certipur®

1000 mg/L PO₄
500 ml/paket

Merck Rhodium standard 10 mg/l (Rhodium(III) nitrate in nitric acid 0.5 mol/l) internal standard for ICP-MS

Merck Samarium ICP standard traceable to SRM from NIST Sm O in HNO 2-3% 1000 mg/l Sm Certipur®

4.0 - 40.0 mg/L; 2.85 ml her bir ölçüm için Spectroquant®
1 adet/paket 495 ml

Merck Gadolinium ICP standard traceable to SRM from NIST Gd O in HNO 2-3% 1000 mg/l Gd Certipur®

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

Amonyum, klorür, COD, nitrat, fosfat, sülfat fotometrik metodların kalite kontrolleri için Spectroquant®
1 adet/paket

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