6 components; Fluorides (F-) 100mg/l ; Chlorides (Cl-) 300mg/l ; Nitrites (NO2-) 50mg/l ; Nitrates (NO3-) 100mg/l ; Phosphates (PO43-) 100mg/l ; Sulphates (SO42-) 300mg/l in Water 250 ml Certificati ISO 17034 / ISO 17025 - Validita 12 mesi