Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 9.00 (20°C) Certipur®

Merck Buffer solution (Potassium dihydrogen phosphate, di-sodium hydrogen phophate) traceable to SRM from NIST and PTB pH 6.86 (25°C) Certipur®

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

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®

0.2 - 2.0 mg/L
8-16 test/paket

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

0.5 mol/l 1000 mg/L Cd 
100 ml/paket

Merck Buffer solution (potassium hydrogen phthalate), traceable to SRM from NIST and PTB p H 4.01 (25°C) Certipur®

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

2 mol/l 1000 mg/L Sb
100 ml/paket

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

H₂O 'da 1.50 mg/L F
100 ml/paket

 0.5 mol/l 1000 mg/L Co
500 ml/paket