 Procedures will be as follows: On Day 0, each healthy volunteer subject has apheresis platelets collected. INTERCEPT Blood System treatment will begin on either the day of donation Day 0 or the day following donation Day 1 and will be completed within 24 hours after collection. Platelets will then be stored for 6 or 7 days after collection depending on the period and randomization scheme at 22C 2C with agitation. Aliquots for in vitro platelet function will be taken on Day 01 before INTERCEPT Blood System treatment and on Day 6 or 7. On Day 6 or 7, healthy volunteers will return to the site, and 43 mL of blood will be drawn into a syringe containing 9 mL of Anticoagulant Citrate Dextrose Solution, Formula A ACD-A. Fresh platelets will be prepared from this sample. An aliquot 10-20 mL of the stored INTERCEPT Blood System for platelets will be aseptically removed from each subjects test container. 