Explanatory notes
… the word “photographic” relates to the process by which visible images are formed, directly or indirectly, by the … The photographic plates, film, paper, paperboard and textiles of Chapter 37 are those with one or more layers of … photon (or photo) sensitive materials, i.e., radiation of wavelength no longer than approximately 1,300 nanometers in …Legal note
… the word “photographic” relates to the process by which visible images are formed, directly or indirectly, by the …