5 components; Fluorides (F-) 100mg/l ; Chlorides (Cl-) 250mg/l ; Nitrates (NO3-) 500mg/l ; Sulphates (SO42-) 500mg/l ; Phosphates (PO43-) 1000mg/l in Water 500 ml Certificati ISO 17034 / ISO 17025 - Validita 24 mesi