Combined Seven Anion Standard I – 7 components: Fluorides (F-) 20mg/l ; Chlorides (Cl-) 30mg/l ; Nitrites (NO2-) 100mg/l ; Bromides (Br-) 100mg/l ; Nitrates (NO3-) 100mg/l ; Phosphates (PO43-) 150mg/l ; Sulphates (SO42-) 150mg/l in Water, 50mL