[Code of Federal Regulations]
[Title 7, Volume 3]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 7CFR91.21]

[Page 218]
 
                          TITLE 7--AGRICULTURE
 
 CHAPTER I--AGRICULTURAL MARKETING SERVICE \1\ (STANDARDS, INSPECTIONS, 
       MARKETING PRACTICES), DEPARTMENT OF AGRICULTURE (CONTINUED)
 
PART 91--SERVICES AND GENERAL INFORMATION--Table of Contents
 
                           Subpart E--Samples
 
Sec. 91.21  Protecting samples.

    Laboratory personnel shall protect each sample from manipulation, 
substitution, and improper or careless handling which would deprive the 
sample of its representative character from the time of receipt in the 
laboratory until the analysis is completed and the sample has been 
discarded.