Cross References:IEC 60793-1-40IEC 60793-2-50ISO/IEC 17025ITU-T Recommendation G.650.1:2004ITU-T Recommendation G.650.2:2002EN 60793-1-40EN 60793-2-50EN ISO/IEC 17025IEC 60050-731:1991IEC 60793-1-1IEC 60794-1-2:2003IEC 60825-1IEC 60825-2IEC 61280-1-3:1998IEC 61300-3-2IEC 61300-3-6IEC/TR 61930:1998IEC 61931ISO/IEC Guide 99:2007ISO/IEC Guide 98-3:2008GUM:1995EN 60793-1-1EN 60794-1-2:2003EN 60825-1EN 60825-2EN 61280-1-3:1999EN 61300-3-2EN 61300-3-6Replaces BS EN 61746:2005 which remains current.All current amendments available at time of purchase are included with the purchase of this document.