[Code of Federal Regulations] [Title 21, Volume 7] [Revised as of April 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR640.67] [Page 98] TITLE 21--FOOD AND DRUGS DEPARTMENT OF HEALTH AND HUMAN SERVICES--(Continued) PART 640--ADDITIONAL STANDARDS FOR HUMAN BLOOD AND BLOOD PRODUCTS--Table of Contents Subpart G--Source Plasma Sec. 640.67 Laboratory tests. (a) Hepatitis B surface antigen. Each unit of Source Plasma shall be nonreactive to a test for hepatitis B surface antigen as prescribed in Secs. 610.40 and 610.41 of this chapter, except insofar as permitted in Sec. 610.40(d)(1) and (d)(2) of this chapter. (b) Antibody to HIV. Each unit of Source Plasma shall be negative by a test for antibody to HIV as prescribed in Sec. 610.45 of this chapter, except as provided in Sec. 610.45(c) of this chapter. [53 FR 117, Jan. 5, 1988, as amended at 57 FR 10814, Mar. 31, 1992]