Tender for The laboratory requires the performance of serology, biochemical and immunohematology determinations on different types of human biological samples: peripheral blood, umbilical cord blood, serum, plasma, etc. The purpose of these studies is to ensure the safety of donors and recipients and to guarantee the quality of the products to be transfused or transplanted. The studies are carried out at the LST, located in the Frederic Duran i Jordà building of the BST in Barcelona.