Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
BS EN 13077-TC:2020
Năm ban hành 2020
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Tracked Changes (Redline) - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B
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Chỉ số phân loại Quốc tế (ICS)
By field
13.060.20 - Nước uống
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Số trang
Page 45
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard This European Standard specifies the characteristics and the requirements of air gap with non-circular overflow (unrestricted) Family A, Type B for nominal flow velocity not exceeding 3 m/s. Air gaps are devices for protection of potable water in water installations from pollution by backflow. This European Standard applies to air gaps in factory-assembled products and to constructed air gaps in situ, and defines requirements and methods to verify and ensure compliance with this European Standard during normal working use. |