Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (25°C) Certipur®

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

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

H₂O 'da 0.400 mg/l NH₄-N
100 ml/paket

Merck Water Standard Oven 1% Certified Reference Material for Karl Fischer oven technique Aquastar®

H₂O 'da 100 mg/L COD
100 ml/paket

H₂O 'da 12.0 mg/L N
100 ml/paket

Merck Buffer solution (citric acid/sodium hydroxide), traceable to SRM from NIST and PTB pH 6.00 (25°C) Certipur®

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

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 Ag 
100 ml/paket

Merck Germanium ICP standard traceable to SRM from NIST (NH ) GeF in H O 1000 mg/l Ge Certipur®

Merck Calcium ICP Standard traceable to SRM from NIST Ca(NO ) in HNO 2-3% 10000 mg/l Ca Certipur®