Within the last ten years there has been increasing
interest in tritium behaviour and distribution in the environment.
This is based partly on empirical findings that tritium discharged
mostly as HTO can become transformed into organic forms in environmental
samples. An international workshop was convened in France in 2012 to
gather the scientific community interested in organically bound
tritium to share their experience and to establish a current state
of knowledge. This paper summarises the outcome of the workshop,
which aimed to improve skills concerning OBT (Organically
Bound Tritium) determination, transfer and behaviour in the environment.
In order to improve OBT measurement credibility,
it was decided to conduct and promote OBT analysis
through inter-laboratory exercises. This practice will reduce uncertainty
in OBT analysis results, providing better OBT model
validation data and public dose assessments.