Merck Certified sec. standard reference buffer solution potassium dihydrogen phosphate/di- sodium hydrogen phosphate, directly traceable to primary SRM from NIST/PTB pH(S) = 6.86 (25°C) Certipur®

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 Buffer solution (potassium dihydrogen phosphate/disodium hydrogen phosphate) traceable to SRM from NIST and PTB pH 7.00 (25°C) Certipur®

Merck Yttrium standard solution traceable to SRM from NIST Y(NO ) in HNO 0.5 mol/l 1000 mg/l Y Certipur®

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

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

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

H₂O 'da 15.0 mg/L NO₃-N
100 ml/paket

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

Merck Buffer solution (acetic acid/sodium acetate) traceable to SRM from NIST and PTB pH 4.66 (20°C) Certipur®

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

Amonyum, klorür, COD, nitrat, fosfat, sülfat fotometrik metodların kalite kontrolleri için Spectroquant®
1 adet/paket

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