Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride) colour: red traceable to SRM from NIST and PTB pH 4.00 (20 °C) Certipur®

Merck Dysprosium ICP standard traceable to SRM from NIST Dy O in HNO 2-3% 1000 mg/l Dy Certipur®

Merck Mercury ICP standard traceable to SRM from NIST Hg(NO ) in HNO 10% 10000 mg/l Hg Certipur®

Merck Water standard oil Certified Reference Material for Karl Fischer Titration (oil matrix 15- 30 ppm H2O) Aquastar®

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

Merck Cesium ICP Standard traceable to SRM from NIST CsNO in HNO 2-3% 1000 mg/l Cs Certipur®

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

Merck Potassium hydrogen phthalate certified secondary standard reference material for pH m easurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.00
(25°C) Certipur®

H₂O 'da 15.0 mg/L NO₃-N
100 ml/paket

Merck Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (25°C) Certipur®

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

Merck Potassium ICP standard traceable to SRM from NIST KNO in HNO 2-3% 10000 mg/l K Certipur®

Merck Lithium ICP Standard traceable to SRM from NIST LiNO in HNO 2-3% 1000 mg/l Li Certipur®