![BS EN 13077:2023 - Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B (British Standard) BS EN 13077:2023 - Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B (British Standard)](https://webstore.ansi.org/cover-pages/small/BSI/30441566.jpg)
BS EN 13077:2023 - Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B (British Standard)
![UNE EN 13077:2019 Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B - European Standards UNE EN 13077:2019 Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B - European Standards](https://www.en-standard.eu/imagegen.php?name=i439-n0061461/UNE-EN-13077-2019-Devices-to-p.png)
UNE EN 13077:2019 Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B - European Standards
![Characterization of Air Gaps and Their Impact on the Thermal Insulation Performance of Multi-layer Firefighter Clothing | SpringerLink Characterization of Air Gaps and Their Impact on the Thermal Insulation Performance of Multi-layer Firefighter Clothing | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs10694-022-01222-5/MediaObjects/10694_2022_1222_Fig4_HTML.png)
Characterization of Air Gaps and Their Impact on the Thermal Insulation Performance of Multi-layer Firefighter Clothing | SpringerLink
21/30441565 DC BS EN 13077. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B - European Standards
![Module 160: The application of non-mechanical arrangements to prevent backflow in wholesome water systems – CIBSE Journal Module 160: The application of non-mechanical arrangements to prevent backflow in wholesome water systems – CIBSE Journal](https://www.cibsejournal.com/wp-content/uploads/2020/03/CIBSE-Journal-April-2020-CPD-Figure-2.jpg)
Module 160: The application of non-mechanical arrangements to prevent backflow in wholesome water systems – CIBSE Journal
![DIN EN 13077:2018 - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B; German version EN 13077:2018 DIN EN 13077:2018 - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B; German version EN 13077:2018](https://webstore.ansi.org/cover-pages/small/DIN/2852156.jpg)
DIN EN 13077:2018 - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B; German version EN 13077:2018
![DIN EN 13077:2004 - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A, type B (Foreign Standard) DIN EN 13077:2004 - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A, type B (Foreign Standard)](https://webstore.ansi.org/cover-pages/small/DIN/9551655.jpg)