[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR864.6675] [Page 230] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 864--HEMATOLOGY AND PATHOLOGY DEVICES--Table of Contents Subpart G--Manual Hematology Devices Sec. 864.6675 Platelet aggregometer. (a) Identification. A platelet aggregometer is a device, used to determine changes in platelet shape and platelet aggregation following the addition of an aggregating reagent to a platelet rich plasma. (b) Classification. Class II (performance standards). [45 FR 60608, Sept. 12, 1980]