標準號：IS 998 Pt.3-1983
發(fā)布日期：1983/9/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍： This standard ( Part 3 ) covers photometric methods of determination of cadmium, zinc, aluminium, bismuth and nickel in lead and tin base solders (see IS : 193-1982〓 and IS : 1921-1975〓) having chemical composition within the following range:Constituents PercentCadmium 0·005 MaxZinc 0·003 MaxAluminium 0·001 MaxBismuth 0 05 MaxNickel0·002 Max