Merck Buffer Solution (di-sodium hydrogen phosphate/sodium hydroxide) traceable to SRM from NIST und PTB pH 12.00 (25°C) Certipur®

H₂O 'da 5.0 mg/L TOC 
100 ml/paket

H₂O 'da 125 mg/L SO₄
100 ml/paket

Merck Thorium ICP standard traceable to SRM from NIST Th(NO ) in HNO 2-3% 10 mg/l Th Certipur®

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

H₂O 'da 8000 mg/L COD
100 ml/paket

H₂O 'da 12.0 mg/L N
100 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

H₂O 'da 50.0 mg/L TOC
100 ml/paket

H₂O 'da 200 mg/L NO₃-N
100 ml/paket

H₂O 'da 2.50 mg/L NO₃-N
100 ml/paket

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

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