2015 IBC
306.1 Factory Industrial Group F.
Factory Industrial Group F occupancy includes among others, the use of a building or structure, or a portion thereof, for assembling, disassembling, fabricating, finishing, manufacturing,
packaging, repair or processing operations that are not classified as a Group H hazardous or Group S storage occupancy.
306.3 Low-hazard factory industrial, Group F-2.
Factory industrial uses that involve the fabrication or manufacturing or noncombustible materials that during finishing, packaging or processing do not involve a significant fire hazard shall be classified as F-2 occupancies and shall include, but not be limited to, the following:
311.3 Low-hazard storage, Group S-2.
Storage Group S-2 occupancies include, among others, buildings used for the storage of noncombustible materials such as products on wood pallets or in paper cartons with or without single thickness divisions; or in paper wrappings. Such products are permitted to have a negligible amount or plastic trim, such as knobs, handles or film wrapping. Group S-2 storage uses shall include, but not be limited to, storage of the following:
2012 Commentary has this to say:
306.3 F-2: Structures classified in Group F-2 are occupied for the purpose of fabrication, manufacturing or processing of noncombustible materials.
It is acceptable for noncombustible products to be packaged in a combustible material, provided that the fuel load contributed by the packaging is negligible when compared to the amount of noncombustible product. The use of a significant amount of combustible material to package or finish a noncombustible product, however, will result in a Group F-1 classification.
311.3 S-2: Buildings in which noncombustible materials are stored are classified as Group S-2, low-hazard storage occupancies.
It is acceptable for stored noncombustible products to be packaged in combustible materials as long and the quantity of packaging is kept to a insignificant level.