Combined Seven Anion Standard-I: contains Fluoride 20mg/L, Chloride 30mg/L, Nitrite 100mg/L, bromide 100mg/L, nitrate 100

Combined Seven Anion Standard-I: contains Fluoride 20mg/L, Chloride 30mg/L, Nitrite 100mg/L, bromide 100mg/L, nitrate 100mg/L,
VE: 1