20 COMPOSES DANS HNO3 5% Al 125mg/l Fe 125mg/l Mn 62.5mg/l As 50mg/l Cr 50mg/l Cu 50mg/l Zn 50mg/l Sn 50mg/l Tl 50mg/l Ni 25mg/l Ba 25mg/l Be 25mg/l Sb 25mg/l Co 25mg/l Mo 25mg/l Se 25mg/l V 25mg/l Ti 25mg/l Te 1 * 500 mL