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

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

Merck Calcium ICP Standard traceable to SRM from NIST Ca(NO ) in HNO 2-3% 1000 mg/l Ca Certipur®

Merck Sodium carbonate volumetric standard, secondary reference material for acidimetry, traceable to NIST SRM Certipur®

H₂O 'da 12.0 mg/L N
100 ml/paket

H₂O 'da 0.200 mg/L NO₂-N
100 ml/paket

Merck Buffer solution (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (25°C) Certipur®

Merck Potassium dihydrogen phosphate/ di-sodium hydrogen phosphate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=6.86 /pH(S)=7.41 (25°C) Certipur®

Merck Hafnium ICP standard traceable to SRM from NIST HfCl in HCl 7% 1000 mg/l Hf Certipur®

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

2 mol/l 1000 mg/L Sb
100 ml/paket

Amonyum, COD, Azot fotometrik metodların kalite kontrolleri için Spectroquant®
1 adet/paket

Merck di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=9.18 (25°C) Certipur®