23 COMPOSES DANS HNO3 5% Ag 0.4mg/l Al 200mg/l B 10mg/l Ba 10mg/l Cd 0.4mg/l Co 0.4mg/l Cr 0.4mg/l Cu 4mg/l Fe 200mg/l Mn 4mg/l Mo 1mg/l Ni 4mg/l Pb 1mg/l Si 400mg/l Sn 0.4mg/l V 0.4mg/l Zn 20mg/l P 50mg/l As 0.4 1 * 100 mL