17 components: Be 10mg/l Cd 10mg/l Co 10mg/l Mn 10mg/l Cr 20mg/l Cu 20mg/l Ni 20mg/l Al 40mg/l As 40mg/l Ba 40mg/l Pb 40mg/l V 40mg/l B 100mg/l Fe 100mg/l Se 100mg/l Tl 100mg/l Zn 100mg/l in HNO3 10% 1 * 100 mL