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

0.5 mol/l 1000 mg/L Cd 
100 ml/paket

500 - 10000 mg/L; 1.80 ml her bir ölçüm için Spectroquant®
1 adet/paket 495 ml

Merck Lithium ICP Standard traceable to SRM from NIST LiNO in HNO 2-3% 1000 mg/l Li Certipur®

Merck Niobium ICP standard traceable to SRM from NIST NH NbF in H O 1000 mg/l Nb Certipur®

Merck Buffer solution (di-sodium hydrogen phosphate/ potassium dihydrogen phosphate), colour:yellow traceable to SRM from NIST and PTB pH 7.00 (25°C) Certipur®

H₂O 'da 50000 mg/L COD
100 ml/paket

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®

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

0.5 mol/l 1000 mg/L Si 
100 ml/paket

Merck Strontium standard solution traceable to SRM from NIST Sr(NO ) in HNO 0.5 mol/l 1000 mg/l Sr Certipur®

H₂O 'da 200 mg/L COD

Merck Calcium carbonate volumetric standard, secondary reference material for complexometr y, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. USP