Richard Burke (USA) donated his 1,411th unit of blood on his 1,193rd blood donation visit made on 4 June 2004. This is equivalent of 634.95 litres (139.6 gal/167.73 US gal). He has been donating blood since 14 January 1975.

Apheresis – A procedure in which blood is collected, part of the blood such as platelets or white blood cells is taken out, and the rest of the blood is returned to the donor. Also called pheresis.
the components which are separated and withdrawn include:
Plasma – plasmapheresis
Platelets – plateletpheresis
Leukocytes – leukapheresis