Metenamina (hexametilen-tetraamina)Reag. Ph Eur-500g-2-294.00lei Acid orto-fosforic 85% pentru analiza, EMSURE® ACS,ISO,Reag. Ph Eur-L-1-104.60lei Titriplex® III - solutie concentrata for 1000 ml, c(Na₂-EDTA 2 H₂O) = 0.01 mol/l Titrisol®-Fiola-1-105.60lei Acid clorhidric fumans, 37% pentru analiza, EMSURE® ACS,ISO,Reag. Ph Eur-2.5L-1-47.00lei Solutie standard de fier Fe(NO₃)₃ in HNO₃ 0.5 mol/l, trasabila NIST, 1000 mg/l Fe Certipur®-500ml-1-116.20lei Solutie standard de azotat NaNO₃ in H₂O trasabila NIST 1000 mg/l NO₃ Certipur®-500ml-1-118.80lei Solutie standard de azotit NaNO₂ in H₂O trasabila NIST 1000 mg/l NO₂ Certipur®-500ml-1-120.00lei Solutie standard de amoniu NH₄Cl in H₂O trasabila NIST 1000 mg/l NH₄ Certipur®-500ml-1-118.80lei Tiosulfat de sodiu - solutie for 1000 ml, c(Na₂S₂O₃) = 0.1 mol/l (0.1 N) Titrisol®-Fiola-2-71.50lei Permanganat de potasiu - solutie standardizata fata de tiosulfat de sodiu; c(KMnO₄) = 0.02 mol/l (0.1 N) Titripur® Reag. Ph Eur-L-2-177.00lei Azotat de argint pentru analiza, EMSURE® ACS,ISO,Reag. Ph Eur-100g-1-1135.20lei Acid oxalic - solutie concentrata for 1000 ml, c(C₂H₂O₄) = 0.005 mol/l (0.01 N) Titrisol®-Fiola-2-85.80lei Etanol absolut pentru analiza; EMSURE® ACS,ISO,Reag. Ph Eur-L-2-150.60lei 1,10-Fenantrolina HCl (clorhidrat de 1,10-fenantrolina) monohidrat Reag. Ph Eur-10g-1-231.50lei 2,6-Dimetil-fenol GR for analysis-100g-1-3330.00lei Etilen-dinitrilo-tetraacetat de di-sodiu dihidrat-250g-2-193.60lei Metil orange (C.I. 13025) ACS,Reag.