Merck Buffer Solution (boric acid/potassium chloride/sodium hydroxide) colour coded: yellow, tr aceable to NIST and PTB pH 10.00 (20°C) Certipur®

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

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

H₂O 'da 2.50 mg/L NO₃-N
100 ml/paket

1000 mg/I Mo
500 ml/paket

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 2.00 (25°C) Certipur®

H₂O 'da 0.250 mg/L NH₄
100 ml/paket

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

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

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

Merck Buffer solutions traceable to SRM from NIST and PTB 10 x pH 4.01 (phthalate) 10 x pH 7.00 (phosphate) 10 x pH 9.00 (borate) pH 4.01/pH 7.00/pH 9.00 (25°C) Certipur®

Merck Buffer solution (di-sodium hydrogen phosphate/ potassium dihydrogen phosphate), colour:yellow traceable to SRM from NIST and PTB pH 7.00 (25°C) Certipur®

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