CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER F—BIOLOGICS (parts 600 to 680) > PART 660—ADDITIONAL STANDARDS FOR DIAGNOSTIC SUBSTANCES FOR LABORATORY TESTS > SUBPART C—Blood Grouping Reagent (§660.20 to §660.28) > 660.22—Potency requirements with reference preparations.

660.22—Potency requirements with reference preparations.

(a) Potency requirements. Products for which reference Blood Grouping Reagents are available shall have a potency titer value at least equal to that of the reference preparation.
(b) Reference preparations. Reference Blood Grouping Reagents shall be obtained from the Center for Biologics Evaluation and Research (HFM-407) (see mailing addresses in § 600.2 of this chapter ), and shall be used as described in the accompanying package insert for determining the potency of Blood Grouping Reagents.

Code of Federal Regulations

[53 FR 12764, Apr. 19, 1988, as amended at 67 FR 9587, Mar. 4, 2002; 70 FR 14985, Mar. 24, 2005]