Cross References:IEC 60189-1IEC 60793-1-20IEC 60793-1-21IEC 60793-2-40IEC 60794-1-1IEC 60794-1-2IEC 60794-2EN 60793-1-20:2002EN 60793-1-21:2002EN 60793-2-40:2006EN 60794-1-1:2002EN 60794-1-2:2003EN 60794-2:2003IEC/TR 62222IEC 60794-2-41IEC 60794-2-42EN 60794-2-42:2008All current amendments available at time of purchase are included with the purchase of this document.