[Code of Federal Regulations]
[Title 42, Volume 1]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 42CFR7.3]

[Page 54]
 
                         TITLE 42--PUBLIC HEALTH
 
    CHAPTER I--PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN 
                                SERVICES
 
PART 7--DISTRIBUTION OF REFERENCE BIOLOGICAL STANDARDS AND BIOLOGICAL PREPARATIONS--Table of Contents
 
Sec. 7.3  Definitions.

    Biological standards means a uniform and stable reference biological 
substance which allows measurements of relative potency to be made and 
described in a common currency of international and national units of 
activity.
    Biological preparations means a reference biological substance which 
may be used for a purpose similar to that of a standard, but which has 
been established without a full collaborative study, or where a 
collaborative study has shown that it is not appropriate to establish 
the preparation as an international standard.