[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR178.3800]
[Page 440-441]
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
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.
[[Page 441]]
Rosins and rosin derivatives........... As provided in Sec. 178.3870.
Zinc salt of sulfonated petroleum......
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