Explanatory notes
… medium (e.g., drying oils, white spirit, gum, wood or sulphate turpentine or varnish), in liquid or paste form, of … deposited by vaporisation, cathodic sputtering, etc., on a supporting sheet of any material (e.g., paper, plastics). … normally consist of mixtures of colouring matter with other substances (e.g., inert diluents, surface-active products …