Filter elements by nature are not intended to preventThe passage of fluids, but to remove orreduceThe microorganism load to acceptable levels, by retention of the targetmicroorganisms withinThe filter medium. Leaktightness inThis context refers toThe ability ofthe filtration assembly to retainThe target microorganism.Use of this European Standard will aidThe equipment manufacturer inThe classification offilter elements and filtration assemblies with regard to biosafety performance inbiotechnological processes.The classification is easily understandable and readily utilizable
EN 13091:1999 history
1999EN 13091:1999 Biotechnology - Performance criteria for filter elements and filtration assemblies