21 C.F.R. § 178.3800 Preservatives for wood.
Title 21 - Food and Drugs
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:
Title 21: Food and Drugs
PART 178—INDIRECT FOOD ADDITIVES: ADJUVANTS, PRODUCTION AIDS, AND SANITIZERS
Subpart D—Certain Adjuvants and Production Aids
§ 178.3800 Preservatives for wood.
------------------------------------------------------------------------ List of substances Limitations------------------------------------------------------------------------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 § 178.3870.Zinc salt of sulfonated petroleum......------------------------------------------------------------------------
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