Sülfat standart çözeltisi CRM

Merck Benzoic acid volumetric standard, secondary reference material for alkalimetry, traceabl e to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP

H₂O 'da 0.250 mg/L NH₄
100 ml/paket

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

Merck Cobalt ICP standard traceable to SRM from NIST Co(NO ) in HNO 2-3% 10000 mg/l Co Certipur®

Merck Tungsten standard solution traceable to SRM from NIST (NH ) WO in H O 1000 mg/l W Certipur®

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

Merck Phosphorus ICP standard traceable to SRM from NIST H PO in H O 1000 mg/l P Certipur®

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

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

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

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®

0.2 - 2.0 mg/L
8-16 test/paket