The regular occurrence of food borne pathogen related outbreaks in the EU, the ongoing struggle with pathogens in health care and public health as well as the security threat related to the potential misuse of pathogens emphasise the need for an adequate and reliable monitoring system and preparedness against these risks. Consequently the JRC is aiming at maintaining a high level of quality of the measurements which have to be carried out in this context by developing and providing suitable quality assurance tools, such as reference materials, and measurement techniques.