Petrol filling stations - Safety requirements for construction and performance of safe breaks for use on metering pumps and dispensers Ingestion-build-89079 BS EN 4309 on self-locking

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Petrol filling stations - Safety requirements for construction and performance of safe breaks for use on metering pumps and dispensers Ingestion-build-89079 BS EN 4309 on self-locking1 Scope This European Standard specifies safety requirements for the construction and performance of safe breaks to be fitted to metering pumps and dispensers installed at filling stations and used to dispense liquid fuels into the tanks of motor vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l min 1. The requirements apply to safe breaks at ambient temperatures from 20 C to +40 C with the possibility for an