Safety kit (1) for treating biological material and preferably for the treatment of venous blood, adapted to facilitate the transfer of blood under safe conditions from a common syringe to a common collection test tube, the latter having at its interior a predefined vacuum or inert atmosphere, comprising: at least one tubular protection casing (2), preferably cylindrical, at least one component (4) assemblable or already assembled inside said protection casing (2), said protection casing (2) and said component (4), when assembled, adapted to constitute the connection element between a common syringe (30) and a common collection test tube (40), and at least one package (15) adapted to contain the components of said kit (1), characterized in that said protection casing (2) has at least two portions i.e. at least one portion (2) and at least one portion (2") with equivalent extension and adapted to receive the component (4), said component (4) having at least two projections i.e. the projection (4) extended through the portion (2) and the projection (4") extended into the portion (2") and respectively adapted to connect with a common syringe (30) and with a common collection test tube (40).La présente invention concerne un kit de sécurité (1) pour le traitement de matériau biologique et de préférence pour le traitement de sang veineux, adapté pour faciliter le transfert de sang dans des conditions sûres depuis une seringue commune vers un tube à essai de collecte commun, ce dernier ayant à lintérieur de celui-ci un vide prédéfini ou une atmosphère inerte, comprenant : au moins un boîtier de protection tubulaire (2), de préférence cylindrique, au moins un composant (4) assemblable ou déjà assemblé à lintérieur dudit boîtier de protection (2), ledit boîtier de protection (2) et ledit composant (4), lorsquils sont assemblés, adaptés pour constituer lélément de raccordement entre une seringue commune (30) et un tube à essai de collecte commun (40), et au moins un emballage
