[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR178.3800]

[Page 424]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 178--INDIRECT FOOD ADDITIVES: ADJUVANTS, PRODUCTION AIDS, AND SANITIZERS--Table of Contents
 
            Subpart D--Certain Adjuvants and Production Aids
 
Sec. 178.3800  Preservatives for wood.

    Preservatives may be safely used on wooden articles that are used or 
intended for use in packaging, transporting, or holding raw agricultural 
products subject to the provisions of this section:
    (a) The preservatives are prepared from substances identified in 
paragraph (b) of this section and applied in amounts not to exceed those 
necessary to accomplish the technical effect of protecting the wood from 
decay, mildew, and water absorption.
    (b) The substances permitted are as follows:

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           List of substances                      Limitations
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Copper-8-quinolinolate.................
Mineral spirits........................
Paraffin wax...........................  Used singly or in combination
                                          so as to constitute not less
                                          than 50% of the solids.
Petroleum hydrocarbon resin, produced     Do.
 by the homo- and copolymerization of
 dienes and olefins of the aliphatic,
 alicyclic, and monobenzenoid
 arylalkene type from distillates of
 cracked petroleum stocks.
Pentachlorophenol and its sodium salt..  Not to exceed 50 p.p.m. in the
                                          treated wood, calculated as
                                          pentachlorophenol.
Rosins and rosin derivatives...........  As provided in Sec.  178.3870.
Zinc salt of sulfonated petroleum......
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