Merck Water standard 1% Certified Reference Material for Karl Fischer Titration 1 g 10 mg H O Aquastar®

2 mol/l 1000mg/L Pt 
100 ml/paket

Merck Buffer solution (Potassium tetraoxalate) traceable to SRM from NIST and PTB pH 1.68 (25°C) Certipur®

Klorür, COD fotometrik metodların kalite kontrolleri için Spectroquant®

H₂O 'da 15.0 mg/L NO₃-N
100 ml/paket

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

Merck Silicon standard solution traceable to SRM from NIST acidic, (NH ) SiF in H O 1000 mg/l Si Certipur®

Merck Buffer solution (di-sodium tetraborate) traceable to SRM from NIST and PTB pH 9.18 (25°C) Certipur®

H₂O 'da 100 mg/L COD
100 ml/paket

1000 mg/L B
100 ml/paket

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

Alüminyum, Kurşun, Nikel, Çinko fotometrik metodların kalite kontrolleri için

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride) colour: red, traceable to SRM from NIST and PTB pH 4.00 (25 °C)