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:
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 by the homo- and copolymerization of dienes and olefins of the aliphatic, alicyclic, and monobenzenoid arylalkene type from distillates of cracked petroleum stocks | Do. |
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 |
21 C.F.R. §178.3800