• BS EN 50491-4-1 : 2012

    GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 4-1: GENERAL FUNCTIONAL SAFETY REQUIREMENTS FOR PRODUCTS INTENDED TO BE INTEGRATED IN BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS)

    British Standards Institution

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