five to 10 hours 6 hours outside of the body five to 10 hours University of Michigan Transplant Center can preserve 6 hours outside of the body five to 10 hours five to 10 hours 24 to 36 hours five to 10 hours 30 hours can preserve five to 10 hours five to 10 hours five to 10 hours more than can preserve five to 10 hours five to 10 hours 6 hours outside of the body five to 10 hours five to 10 hours