Yes, exposure status is a key classification variable. Unexposed sensitized film is generally classified differently from exposed or processed film under the HTS, and the base material (acetate, polyester) and image-forming chemistry (silver-halide vs. non-silver) introduce additional classification branches. Importers should confirm the precise product state before filing entry.

Generally, yes. Photographic developers, fixers, and stop-bath solutions are classified as chemical preparations under their own HTS headings, distinct from the sensitized media they process. When imported together as a kit, the classification of the set may follow the component that gives the kit its essential character, which can require a CBP ruling to confirm.