BS EN 13922:2020,Tanks for transport of dangerous goods – Service equipment for tanks – Overfill prevention systems for liquid fuels.BS EN 13922:2020 pdf free download.
BS EN 13922:2020 specifies the following points regarding the minimum requirements for an overfill prevention system:
— functions;
— major components;
— characteristics;
— test methods.
BS EN 13922:2020 is applicable to overfill prevention systems for liquid fuels having a flash point up to but not exceeding 100 °C, excluding liquefied petroleum gas (LPG).
The overfill prevention system prevents the maximum filling level of a compartment of a tank-vehicle from being exceeded by interrupting the filling operation on the loading site.
It is not the function of an overfill prevention system to prevent volume or weight overloading. The unction of the overfill prevention system is the final means of containing the loaded product within a compartment and preventing a dangerous condition. It is therefore of critical importance that all components have a high degree of reliability and that all European gantries provide a compatible system with the tank-vehicles.
Not all the components of an overfill prevention system are necessarily supplied by one manufacturer but may include cross-compatible parts supplied by different manufacturers/suppliers. However, cross compatibility does not mean interchangeability.
2 Normative references
EN 590, Automotive fuels – Requirements and test methods;
EN 60079-0, Explosive atmospheres – Part 0: Equipment-General requirements (IEC60079-0)
EN 60079-11, Explosive atmospheres – Part 11: Equipment protection by intrinsic safety “i” (IEC60079-11)
EN 60079-14, Explosive atmospheres – Part Electrical installations design, selection and erection (IEC 60079-14)

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