Cross References: EN 50126-1:1999 EN 50129:2003 EN ISO 9000 ISO 9000 EN ISO 9001 ISO 9001 ISO/IEC 90003:2004 ISO/IEC 9126 EN 50159-1 EN 50159-2 EN 61131-3:2003 IEC 61131-3:2003 EN 61158-2:2008 IEC 61158-2:2007
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