Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-73935 Who is BS EN 62199

Who is BS EN 62199 - Bushings for D

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Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-73935 Who is BS EN 621991 Scope This European standard specifies the characteristics and the requirements of unrestricted air gaps Family A Type A intended for protection of potable water in water installations from pollution. This standard applies to air gaps in factory assembled products and to constructed air gaps in situ, and defines the physico chemical characteristics of materials of construction used for the purpose and application to ensure compliance with this